Tidak ada produk di keranjang.
MDR-100-12 12V 7.5A 90W AC to DC Industrial DIN Rail Power Supply
Rp430,000.00
VOUCHER
Diskon 5% min. belanja Rp1JT
🔥 5 items sold in last 3 jam
43 orang sedang melihat produk ini sekarang
Tanya dulu via WhatsApp
DAPPRA MDR-100-12 (SKU: OE89) is a 90W single output ultra-slim industrial DIN rail power supply with 12V DC / 7.5A output and universal 85–264 VAC input. Built-in DC OK relay contact, 83% typical efficiency, slim 55 mm blue plastic housing, fanless natural convection cooling, complete protection functions, UL508 approved, TS35 DIN rail mounting, 3-year warranty — ideal for industrial control, factory automation and electrical panels.
Share:
Overview
MDR-100-12 Overview
The DAPPRA MDR-100-12 (SKU: OE89) is the 12V model in the MDR-100 series, the highest power tier of the MDR range. It provides a stable 12V DC output at 7.5A rated current from a universal 85–264 VAC input or 120–370 VDC input, delivering 90W of rated output power.
The unit features a blue plastic housing measuring 55 × 90 × 100 mm — wider than lower-power MDR models but still compact for its power class. Fanless natural convection cooling eliminates moving parts, while the built-in DC OK relay contact (30V/1A) enables remote monitoring of output status. Complete protection functions include short circuit, overload (105–150% constant current limiting, auto-recovery) and over voltage (15.6–18V, shut down and re-power). The MDR-100-12 operates from −10°C to +60°C and mounts on standard TS35/7.5 or TS35/15 DIN rail.
Key Features
MDR-100-12 Key Features
Engineered for reliable 12V power in compact industrial control cabinets.
- 90W Output · 12V / 7.5ASingle output configuration providing 12V DC nominal output at 7.5A rated current (0–7.5A range) with 90W rated output power. Output adjustable 12–15V.
- DC OK Relay ContactBuilt-in DC OK relay contact rated 30V/1A resistive load, enabling remote monitoring of power supply status or direct connection to a PLC input.
- Universal AC Input 85–264 VACFull-range single-phase AC input supports global mains voltages. Also accepts 120–370 VDC input.
- Ultra-Slim 55 mm Plastic HousingThe blue plastic housing measures 55 × 90 × 100 mm, saving DIN rail space while providing safe, touch-protected insulation.
- Fanless Natural Convection CoolingNo fan means no dust intake, no acoustic noise and no moving parts — ideal for dusty industrial environments and silent operation.
- Complete Protection FunctionsShort circuit protection, overload protection (105–150% rated output power, constant current limiting, auto-recovery) and over voltage protection (15.6–18V, shut down and re-power) are built in.
- Low No-Load Power ConsumptionNo-load power consumption below 1W, supporting energy-efficient standby operation in continuously powered cabinets.
- TS35 DIN Rail MountingDesigned for standard TS35/7.5 or TS35/15 DIN rail mounting, with LED indicator for power-on status.
Specifications
MDR-100-12 Specifications
Complete technical specifications for the MDR-100-12 ultra-slim DIN rail power supply.
Output
| DC Output Voltage | 12V |
| Rated Current | 7.5A |
| Current Range | 0–7.5A |
| Rated Power | 90W |
| Ripple & Noise (max.) | 120mVp-p |
| Voltage Adjustment Range | 12–15V |
| Voltage Tolerance | ±1.0% |
| Line Regulation | ±1.0% |
| Load Regulation | ±1.0% |
| Setup, Rise Time | 3000ms, 50ms/230VAC · 3000ms, 50ms/115VAC at full load |
| Hold Up Time (Typ.) | 50ms/230VAC · 20ms/115VAC at full load |
Input
| Voltage Range | 85–264VAC · 120–370VDC |
| Frequency Range | 47–63Hz |
| Efficiency (Typ.) | 83% |
| AC Current (Typ.) | 1.3A/115VAC · 0.8A/230VAC |
| Inrush Current (Typ.) | 30A/115VAC · 60A/230VAC (cold start) |
| Leakage Current | <1mA/240VAC |
| No-Load Power | <1W |
Protection
| Overload | 105–150% rated output power · Constant current limiting · Auto-recovery |
| Over Voltage | 15.6–18V · Shut down output, re-power on to recover |
| Over Temperature | Protected (MDR-100 series includes over-temperature protection) |
| Short Circuit | Protected |
Environment
| Working Temperature | −10 ~ +60°C (Refer to Derating Curve) |
| Working Humidity | 20–90% RH non-condensing |
| Storage Temp., Humidity | −20 ~ +85°C, 10–95% RH |
| Temp. Coefficient | ±0.03%/°C (0~50°C) |
| Vibration | 10–500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes |
Safety & EMC
| Safety Standards | UL508, TUV BS EN/EN62368-1, EAC TP TC 004 |
| Withstand Voltage | I/P-O/P: 3KVAC · I/P-FG: 2KVAC · O/P-FG: 0.5KVAC |
| Isolation Resistance | >100M Ohms / 500VDC / 25°C / 70% RH |
| EMC Emission | BS EN/EN55022 Class B · BS EN/EN61000-3-2,-3 |
| EMC Immunity | BS EN/EN61000-6-2 (BS EN/EN50082-2) heavy industry level |
Reliability & Dimensions
| MTBF | 346K hrs min. MIL-HDBK-217F (25°C) |
| Dimensions (W×H×D) | 55 × 90 × 100 mm |
| Weight | Approx. 420–440 g |
| Packing | Contact DAPPRA for packing details |
| Warranty | 3 Years |
Front Panel & DC OK
| +V ADJ | Output voltage adjustment potentiometer (12–15V) |
| DC OK LED | DC output status indicator |
| DC OK Contact | Relay contact, max. 30V/1A resistive load |
| Contact Close | PSU turns on / DC OK |
| Contact Open | PSU turns off / DC Fail |
Notes
1. All parameters not specially mentioned are measured at 230VAC input, rated load and 25°C ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth with a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor. 3. Tolerance includes set-up tolerance, line regulation and load regulation. 4. The power supply is considered a component to be installed into a final equipment; the final equipment must be re-confirmed to meet EMC directives. 5. Derating may be needed under low input voltage or high ambient temperature. 6. The MDR-100-12 does not include active PFC; it is designed for single-phase industrial input. 7. Class I, Division 2 T4 is referenced in some distributor listings for the MDR-100-12; confirm certificate and model coverage before use in hazardous locations.
Dimensions
MDR-100-12 Dimensions
Slim 55 mm plastic housing designed for space-constrained control cabinets. All dimensions in mm, tolerance ±1 mm.
Mechanical Dimensions
| Width (W) | 55 mm |
| Height (H) | 90 mm |
| Depth (D) | 100 mm |
| Weight | Approx. 420–440 g |
| Housing | Plastic (blue) |
| Front Panel | +V ADJ / DC OK |
Installation Clearances
| Top Clearance | 40 mm |
| Bottom Clearance | 20 mm |
| Left / Right Clearance | 5 mm |
| Adjacent Heat Source | 100–150 mm recommended |
| DIN Rail | TS35/7.5 or TS35/15 |
| Mounting Orientation | Vertical only (input bottom, output top) |
Installation
MDR-100-12 Installation
The MDR-100-12 supports TS35 DIN rail mounting with specific ventilation clearance and orientation requirements for reliable operation.
01 / 06
Vertical Orientation Only
The appropriate mounting orientation is vertical — input terminals at the bottom and output terminals at the top. Upside-down, horizontal or table-top mounting is not allowed, as sufficient cooling will not be possible.
02 / 06
Ventilation Clearance
Always allow good ventilation clearances around the unit: 5 mm left and right, 40 mm above and 20 mm below, to prevent overheating. When the adjacent device is a heat source, keep 100–150 mm clearance.
03 / 06
TS35 DIN Rail Mounting
Admissible DIN rail: TS35/7.5 or TS35/15. Tilt the unit slightly rearwards, fit over the top hat rail, slide it downward until it hits the stop, press against the bottom for locking, then shake slightly to check the locking action.
04 / 06
FG Must Be Connected to PE
The FG (Frame Ground) terminal must be connected to PE (Protective Earth) for safety and to ensure proper EMC performance.
05 / 06
Operating Temperature Limits
The MDR-100-12 operates from −10°C to +60°C. Full-load operation is specified within this range; refer to the derating curve for conditions near the upper limit. Do not install near fire sources or in high ambient temperature locations.
06 / 06
Pollution Degree 2 Environment
Install the unit only in a pollution degree 2 environment — typically dry, well-ventilated locations such as control cabinets. Do not install in places with high moisture or near water.
Wiring & Terminal
MDR-100-12 Wiring & Terminal
The MDR-100-12 uses two terminal blocks: TB1 for input and TB2 for output and DC OK. Use copper wire only and ensure all strands of each stranded wire enter the terminal connection.
Terminal Pin Assignment
TB1 — Input Terminal
| Pin No. | Assignment |
|---|---|
| 1 | FG (Frame Ground) |
| 2 | AC/N |
| 3 | AC/L |
TB2 — Output & DC OK (6 Pins)
| Pin No. | Assignment |
|---|---|
| 1, 2 | DC OUTPUT +V |
| 3, 4 | DC OUTPUT −V |
| 5, 6 | DC OK relay contact (30V/1A) |
Contact Close = PSU on / DC OK. Contact Open = PSU off / DC Fail. Verify terminal labels before wiring.
The FG pin must be connected to PE (Protective Earth). Both +V pins (1, 2) and both −V pins (3, 4) should be connected to their respective output wires to prevent excessive current stress on a single contact. The two DC OK pins are the dry relay contact terminals — do not use them as a power output.
Wiring Specification
Recommended Wire
| AWG | Rated Current | Cross-section |
|---|---|---|
| 18 | 0–6 A | 0.75 mm² |
| 16 | 6–10 A | 1.00 mm² |
| 14 | 13–16 A | 1.52 mm² |
Use stranded copper wire only. Use wires rated at least 80°C, such as UL1007.
Terminal Torque Setting
| Model | Torque |
|---|---|
| MDR-100-12 | 5 kgf-cm (4.4 Lb-in) |
Recommended wire strapping length: 5 mm (0.197"). Recommended screwdriver: 3 mm slotted type.
DC OK Relay Rating
| Parameter | Value |
|---|---|
| Max Voltage | 30V |
| Max Current | 1A |
| Load Type | Resistive only |
Do not exceed the relay contact rating. For inductive loads, use external suppression.
DC Output Voltage Adjustment
The MDR-100-12 includes a front-panel +V ADJ potentiometer with a 12–15V adjustment range and a DC OK indicator LED. Output current and output wattage must not exceed the rated 7.5A / 90W. When adjusting the output upward, verify that all connected 12V devices can tolerate the higher voltage.
Safety & Compliance
MDR-100-12 Safety & Cautions
Read and follow all safety instructions before installing, wiring, maintaining or modifying the MDR-100-12 power supply.
- Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Do not remove the case of the power supply yourself.
- Connecting both the primary and the secondary sides together is not allowed — risk of electric arcs and electric shock (danger to life).
- Risk of burn hazard. Do not touch the unit in operation and shortly after disconnection.
- Risk of fire and short circuit. The openings should be protected from foreign objects or dripping liquids.
- The FG (Frame Ground) must be connected to PE (Protective Earth).
- Output current and output wattage must not exceed the rated value on its specification.
- Before commencing any installation, maintenance or modification work, disconnect the system from supply voltage. Make sure that inadvertent connection in circuit will be impossible.
- Do not use the DC OK relay contact as a power output. Observe its 30V/1A resistive rating.
- The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.
Note: Pollution Degree 2 applies where there is only non-conductive pollution that might temporarily become conductive due to occasional condensation. Generally refers to dry, well-ventilated locations, such as control cabinets.
Applications
MDR-100-12 Industrial Applications
The MDR-100-12 is suitable for 12V industrial control systems, factory automation equipment, electrical panels, and space-constrained installations that require DC OK status monitoring.
Industrial Control Systems
Factory Automation
Electrical Panels
Machine Control
Building Automation
Process Control
Test & Measurement
PLC & Sensor Power
Security & Access Control
Next Step
Need the MDR-100-12 for Your Application?
Contact DAPPRA Automation for product specifications, installation support, technical documentation and purchasing assistance — or explore the full MDR Series and industrial power supply range.
Support
MDR-100-12 FAQ
What is the DAPPRA MDR-100-12?
The DAPPRA MDR-100-12 (SKU: OE89) is a 90W single-output industrial DIN rail power supply in the MDR Series. It provides 12V DC at 7.5A from a universal 85–264VAC input, features a blue plastic housing, fanless natural convection cooling, and a DC OK relay contact for remote status monitoring.
Is this a single-output power supply?
Yes. The MDR-100-12 uses a single DC output configuration, providing one 12V rail at up to 7.5A.
What is the input voltage range of the MDR-100-12?
The MDR-100-12 supports a universal AC input range of 85–264VAC (single phase, 47–63Hz) and a DC input range of 120–370VDC.
Can I connect the MDR-100-12 directly to 380V AC?
No. The MDR-100-12 is a single-phase power supply rated for 85–264VAC. It must not be connected directly to a 380VAC three-phase supply. Follow the input voltage and wiring requirements in the datasheet.
What is the maximum output current of the MDR-100-12?
The MDR-100-12 has a rated output current of 7.5A at 12V, corresponding to 90W rated output power. The current range is 0–7.5A.
Why is the MDR-100-12 rated at 90W instead of 96W?
The "100" in the model name refers to the power class. The 12V model delivers 12V × 7.5A = 90W, while the 24V and 48V models in the MDR-100 series deliver 96W (e.g., 24V × 4A). The 12V model operates at slightly lower total wattage because of the 7.5A current limit chosen for this output voltage.
What is the output voltage adjustment range, and how does it affect 12V devices?
The MDR-100-12 has a 12–15V output adjustment range via the front-panel +V ADJ potentiometer. Because the upper limit (15V) exceeds the nominal 12V, verify that every connected 12V device can tolerate the higher voltage before turning the potentiometer up. Many 12V industrial devices accept 13.8–14.4V, but the specific tolerance must be checked on each device's datasheet.
How do I calculate the required output current for the MDR-100-12?
Use the formula I = P / V, where P is the total load power and V is the output voltage. For a 12V system, divide the total load wattage by 12. Also allow margin for startup current and load variations.
Is the MDR-100-12 DIN rail mountable?
Yes. The MDR-100-12 supports standard TS35/7.5 and TS35/15 DIN rail mounting for installation in electrical panels and control cabinets.
Can the MDR-100-12 be mounted horizontally?
Horizontal mounting is not recommended. The specified orientation is vertical, with input terminals at the bottom and output terminals at the top, to support natural convection cooling.
What protection functions does the MDR-100-12 include?
The MDR-100-12 includes short-circuit protection, overload protection (105–150% of rated output power, using constant-current limiting with automatic recovery), and over-voltage protection (15.6–18V, which shuts down the output and requires re-powering to recover).
What does DC OK mean on the MDR-100-12?
DC OK is a DC output status monitoring function. It indicates whether the power supply output is within its normal operating range, and can be used for remote status monitoring or PLC input.
Can the DC OK relay contact of the MDR-100-12 be connected directly to a PLC input?
Yes, but the wiring depends on the PLC input type. The MDR-100-12 uses a dry relay contact (30V/1A resistive), so it can be wired as a dry contact to a PLC digital input. Ensure the PLC input is configured for a dry contact or provides its own wetting voltage; do not apply external voltage that exceeds 30V or 1A across the contact.
Can the MDR-100-12 supply 7.5A continuously in a control cabinet?
Full 7.5A output is specified within the operating range of −10°C to +60°C, but the available output power derates at the higher end of that range. In a typical control cabinet ambient of 40–50°C, full load is usually achievable; above approximately 50°C, refer to the derating curve. Cabinet ventilation and clearance requirements (40mm top, 20mm bottom, 5mm sides) must also be met.
What certifications does the MDR-100-12 have?
Product documentation lists UL508, TUV BS EN/EN62368-1 and EAC TP TC 004 for the MDR-100-12. Some distributor listings also reference Class I, Division 2 Hazardous Locations T4; confirm the certificate and model coverage for your destination market before relying on hazardous-location suitability.
Related Technical Articles
Hanya pelanggan yang telah membeli produk ini dapat memberikan ulasan.
Mungkin Anda suka
-
-
-
-
DRM-0840-R Relay Safety Light Curtain Industrial Area Sensor
Rp2,300,000.00 -
DRM-1020-R Relay Safety Light Curtain Industrial Area Sensor
Rp1,520,000.00 -
DRM-0620-R Relay Safety Light Curtain Industrial Area Sensor
Rp1,300,000.00
Related Technical Articles
Overview
MDR-100-12 Overview
The DAPPRA MDR-100-12 (SKU: OE89) is the 12V model in the MDR-100 series, the highest power tier of the MDR range. It provides a stable 12V DC output at 7.5A rated current from a universal 85–264 VAC input or 120–370 VDC input, delivering 90W of rated output power.
The unit features a blue plastic housing measuring 55 × 90 × 100 mm — wider than lower-power MDR models but still compact for its power class. Fanless natural convection cooling eliminates moving parts, while the built-in DC OK relay contact (30V/1A) enables remote monitoring of output status. Complete protection functions include short circuit, overload (105–150% constant current limiting, auto-recovery) and over voltage (15.6–18V, shut down and re-power). The MDR-100-12 operates from −10°C to +60°C and mounts on standard TS35/7.5 or TS35/15 DIN rail.
Key Features
MDR-100-12 Key Features
Engineered for reliable 12V power in compact industrial control cabinets.
- 90W Output · 12V / 7.5ASingle output configuration providing 12V DC nominal output at 7.5A rated current (0–7.5A range) with 90W rated output power. Output adjustable 12–15V.
- DC OK Relay ContactBuilt-in DC OK relay contact rated 30V/1A resistive load, enabling remote monitoring of power supply status or direct connection to a PLC input.
- Universal AC Input 85–264 VACFull-range single-phase AC input supports global mains voltages. Also accepts 120–370 VDC input.
- Ultra-Slim 55 mm Plastic HousingThe blue plastic housing measures 55 × 90 × 100 mm, saving DIN rail space while providing safe, touch-protected insulation.
- Fanless Natural Convection CoolingNo fan means no dust intake, no acoustic noise and no moving parts — ideal for dusty industrial environments and silent operation.
- Complete Protection FunctionsShort circuit protection, overload protection (105–150% rated output power, constant current limiting, auto-recovery) and over voltage protection (15.6–18V, shut down and re-power) are built in.
- Low No-Load Power ConsumptionNo-load power consumption below 1W, supporting energy-efficient standby operation in continuously powered cabinets.
- TS35 DIN Rail MountingDesigned for standard TS35/7.5 or TS35/15 DIN rail mounting, with LED indicator for power-on status.
Specifications
MDR-100-12 Specifications
Complete technical specifications for the MDR-100-12 ultra-slim DIN rail power supply.
Output
| DC Output Voltage | 12V |
| Rated Current | 7.5A |
| Current Range | 0–7.5A |
| Rated Power | 90W |
| Ripple & Noise (max.) | 120mVp-p |
| Voltage Adjustment Range | 12–15V |
| Voltage Tolerance | ±1.0% |
| Line Regulation | ±1.0% |
| Load Regulation | ±1.0% |
| Setup, Rise Time | 3000ms, 50ms/230VAC · 3000ms, 50ms/115VAC at full load |
| Hold Up Time (Typ.) | 50ms/230VAC · 20ms/115VAC at full load |
Input
| Voltage Range | 85–264VAC · 120–370VDC |
| Frequency Range | 47–63Hz |
| Efficiency (Typ.) | 83% |
| AC Current (Typ.) | 1.3A/115VAC · 0.8A/230VAC |
| Inrush Current (Typ.) | 30A/115VAC · 60A/230VAC (cold start) |
| Leakage Current | <1mA/240VAC |
| No-Load Power | <1W |
Protection
| Overload | 105–150% rated output power · Constant current limiting · Auto-recovery |
| Over Voltage | 15.6–18V · Shut down output, re-power on to recover |
| Over Temperature | Protected (MDR-100 series includes over-temperature protection) |
| Short Circuit | Protected |
Environment
| Working Temperature | −10 ~ +60°C (Refer to Derating Curve) |
| Working Humidity | 20–90% RH non-condensing |
| Storage Temp., Humidity | −20 ~ +85°C, 10–95% RH |
| Temp. Coefficient | ±0.03%/°C (0~50°C) |
| Vibration | 10–500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes |
Safety & EMC
| Safety Standards | UL508, TUV BS EN/EN62368-1, EAC TP TC 004 |
| Withstand Voltage | I/P-O/P: 3KVAC · I/P-FG: 2KVAC · O/P-FG: 0.5KVAC |
| Isolation Resistance | >100M Ohms / 500VDC / 25°C / 70% RH |
| EMC Emission | BS EN/EN55022 Class B · BS EN/EN61000-3-2,-3 |
| EMC Immunity | BS EN/EN61000-6-2 (BS EN/EN50082-2) heavy industry level |
Reliability & Dimensions
| MTBF | 346K hrs min. MIL-HDBK-217F (25°C) |
| Dimensions (W×H×D) | 55 × 90 × 100 mm |
| Weight | Approx. 420–440 g |
| Packing | Contact DAPPRA for packing details |
| Warranty | 3 Years |
Front Panel & DC OK
| +V ADJ | Output voltage adjustment potentiometer (12–15V) |
| DC OK LED | DC output status indicator |
| DC OK Contact | Relay contact, max. 30V/1A resistive load |
| Contact Close | PSU turns on / DC OK |
| Contact Open | PSU turns off / DC Fail |
Notes
1. All parameters not specially mentioned are measured at 230VAC input, rated load and 25°C ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth with a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor. 3. Tolerance includes set-up tolerance, line regulation and load regulation. 4. The power supply is considered a component to be installed into a final equipment; the final equipment must be re-confirmed to meet EMC directives. 5. Derating may be needed under low input voltage or high ambient temperature. 6. The MDR-100-12 does not include active PFC; it is designed for single-phase industrial input. 7. Class I, Division 2 T4 is referenced in some distributor listings for the MDR-100-12; confirm certificate and model coverage before use in hazardous locations.
Dimensions
MDR-100-12 Dimensions
Slim 55 mm plastic housing designed for space-constrained control cabinets. All dimensions in mm, tolerance ±1 mm.
Mechanical Dimensions
| Width (W) | 55 mm |
| Height (H) | 90 mm |
| Depth (D) | 100 mm |
| Weight | Approx. 420–440 g |
| Housing | Plastic (blue) |
| Front Panel | +V ADJ / DC OK |
Installation Clearances
| Top Clearance | 40 mm |
| Bottom Clearance | 20 mm |
| Left / Right Clearance | 5 mm |
| Adjacent Heat Source | 100–150 mm recommended |
| DIN Rail | TS35/7.5 or TS35/15 |
| Mounting Orientation | Vertical only (input bottom, output top) |
Installation
MDR-100-12 Installation
The MDR-100-12 supports TS35 DIN rail mounting with specific ventilation clearance and orientation requirements for reliable operation.
01 / 06
Vertical Orientation Only
The appropriate mounting orientation is vertical — input terminals at the bottom and output terminals at the top. Upside-down, horizontal or table-top mounting is not allowed, as sufficient cooling will not be possible.
02 / 06
Ventilation Clearance
Always allow good ventilation clearances around the unit: 5 mm left and right, 40 mm above and 20 mm below, to prevent overheating. When the adjacent device is a heat source, keep 100–150 mm clearance.
03 / 06
TS35 DIN Rail Mounting
Admissible DIN rail: TS35/7.5 or TS35/15. Tilt the unit slightly rearwards, fit over the top hat rail, slide it downward until it hits the stop, press against the bottom for locking, then shake slightly to check the locking action.
04 / 06
FG Must Be Connected to PE
The FG (Frame Ground) terminal must be connected to PE (Protective Earth) for safety and to ensure proper EMC performance.
05 / 06
Operating Temperature Limits
The MDR-100-12 operates from −10°C to +60°C. Full-load operation is specified within this range; refer to the derating curve for conditions near the upper limit. Do not install near fire sources or in high ambient temperature locations.
06 / 06
Pollution Degree 2 Environment
Install the unit only in a pollution degree 2 environment — typically dry, well-ventilated locations such as control cabinets. Do not install in places with high moisture or near water.
Wiring & Terminal
MDR-100-12 Wiring & Terminal
The MDR-100-12 uses two terminal blocks: TB1 for input and TB2 for output and DC OK. Use copper wire only and ensure all strands of each stranded wire enter the terminal connection.
Terminal Pin Assignment
TB1 — Input Terminal
| Pin No. | Assignment |
|---|---|
| 1 | FG (Frame Ground) |
| 2 | AC/N |
| 3 | AC/L |
TB2 — Output & DC OK (6 Pins)
| Pin No. | Assignment |
|---|---|
| 1, 2 | DC OUTPUT +V |
| 3, 4 | DC OUTPUT −V |
| 5, 6 | DC OK relay contact (30V/1A) |
Contact Close = PSU on / DC OK. Contact Open = PSU off / DC Fail. Verify terminal labels before wiring.
The FG pin must be connected to PE (Protective Earth). Both +V pins (1, 2) and both −V pins (3, 4) should be connected to their respective output wires to prevent excessive current stress on a single contact. The two DC OK pins are the dry relay contact terminals — do not use them as a power output.
Wiring Specification
Recommended Wire
| AWG | Rated Current | Cross-section |
|---|---|---|
| 18 | 0–6 A | 0.75 mm² |
| 16 | 6–10 A | 1.00 mm² |
| 14 | 13–16 A | 1.52 mm² |
Use stranded copper wire only. Use wires rated at least 80°C, such as UL1007.
Terminal Torque Setting
| Model | Torque |
|---|---|
| MDR-100-12 | 5 kgf-cm (4.4 Lb-in) |
Recommended wire strapping length: 5 mm (0.197"). Recommended screwdriver: 3 mm slotted type.
DC OK Relay Rating
| Parameter | Value |
|---|---|
| Max Voltage | 30V |
| Max Current | 1A |
| Load Type | Resistive only |
Do not exceed the relay contact rating. For inductive loads, use external suppression.
DC Output Voltage Adjustment
The MDR-100-12 includes a front-panel +V ADJ potentiometer with a 12–15V adjustment range and a DC OK indicator LED. Output current and output wattage must not exceed the rated 7.5A / 90W. When adjusting the output upward, verify that all connected 12V devices can tolerate the higher voltage.
Safety & Compliance
MDR-100-12 Safety & Cautions
Read and follow all safety instructions before installing, wiring, maintaining or modifying the MDR-100-12 power supply.
- Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Do not remove the case of the power supply yourself.
- Connecting both the primary and the secondary sides together is not allowed — risk of electric arcs and electric shock (danger to life).
- Risk of burn hazard. Do not touch the unit in operation and shortly after disconnection.
- Risk of fire and short circuit. The openings should be protected from foreign objects or dripping liquids.
- The FG (Frame Ground) must be connected to PE (Protective Earth).
- Output current and output wattage must not exceed the rated value on its specification.
- Before commencing any installation, maintenance or modification work, disconnect the system from supply voltage. Make sure that inadvertent connection in circuit will be impossible.
- Do not use the DC OK relay contact as a power output. Observe its 30V/1A resistive rating.
- The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives.
Note: Pollution Degree 2 applies where there is only non-conductive pollution that might temporarily become conductive due to occasional condensation. Generally refers to dry, well-ventilated locations, such as control cabinets.
Applications
MDR-100-12 Industrial Applications
The MDR-100-12 is suitable for 12V industrial control systems, factory automation equipment, electrical panels, and space-constrained installations that require DC OK status monitoring.
Industrial Control Systems
Factory Automation
Electrical Panels
Machine Control
Building Automation
Process Control
Test & Measurement
PLC & Sensor Power
Security & Access Control
Next Step
Need the MDR-100-12 for Your Application?
Contact DAPPRA Automation for product specifications, installation support, technical documentation and purchasing assistance — or explore the full MDR Series and industrial power supply range.
Support
MDR-100-12 FAQ
What is the DAPPRA MDR-100-12?
The DAPPRA MDR-100-12 (SKU: OE89) is a 90W single-output industrial DIN rail power supply in the MDR Series. It provides 12V DC at 7.5A from a universal 85–264VAC input, features a blue plastic housing, fanless natural convection cooling, and a DC OK relay contact for remote status monitoring.
Is this a single-output power supply?
Yes. The MDR-100-12 uses a single DC output configuration, providing one 12V rail at up to 7.5A.
What is the input voltage range of the MDR-100-12?
The MDR-100-12 supports a universal AC input range of 85–264VAC (single phase, 47–63Hz) and a DC input range of 120–370VDC.
Can I connect the MDR-100-12 directly to 380V AC?
No. The MDR-100-12 is a single-phase power supply rated for 85–264VAC. It must not be connected directly to a 380VAC three-phase supply. Follow the input voltage and wiring requirements in the datasheet.
What is the maximum output current of the MDR-100-12?
The MDR-100-12 has a rated output current of 7.5A at 12V, corresponding to 90W rated output power. The current range is 0–7.5A.
Why is the MDR-100-12 rated at 90W instead of 96W?
The "100" in the model name refers to the power class. The 12V model delivers 12V × 7.5A = 90W, while the 24V and 48V models in the MDR-100 series deliver 96W (e.g., 24V × 4A). The 12V model operates at slightly lower total wattage because of the 7.5A current limit chosen for this output voltage.
What is the output voltage adjustment range, and how does it affect 12V devices?
The MDR-100-12 has a 12–15V output adjustment range via the front-panel +V ADJ potentiometer. Because the upper limit (15V) exceeds the nominal 12V, verify that every connected 12V device can tolerate the higher voltage before turning the potentiometer up. Many 12V industrial devices accept 13.8–14.4V, but the specific tolerance must be checked on each device's datasheet.
How do I calculate the required output current for the MDR-100-12?
Use the formula I = P / V, where P is the total load power and V is the output voltage. For a 12V system, divide the total load wattage by 12. Also allow margin for startup current and load variations.
Is the MDR-100-12 DIN rail mountable?
Yes. The MDR-100-12 supports standard TS35/7.5 and TS35/15 DIN rail mounting for installation in electrical panels and control cabinets.
Can the MDR-100-12 be mounted horizontally?
Horizontal mounting is not recommended. The specified orientation is vertical, with input terminals at the bottom and output terminals at the top, to support natural convection cooling.
What protection functions does the MDR-100-12 include?
The MDR-100-12 includes short-circuit protection, overload protection (105–150% of rated output power, using constant-current limiting with automatic recovery), and over-voltage protection (15.6–18V, which shuts down the output and requires re-powering to recover).
What does DC OK mean on the MDR-100-12?
DC OK is a DC output status monitoring function. It indicates whether the power supply output is within its normal operating range, and can be used for remote status monitoring or PLC input.
Can the DC OK relay contact of the MDR-100-12 be connected directly to a PLC input?
Yes, but the wiring depends on the PLC input type. The MDR-100-12 uses a dry relay contact (30V/1A resistive), so it can be wired as a dry contact to a PLC digital input. Ensure the PLC input is configured for a dry contact or provides its own wetting voltage; do not apply external voltage that exceeds 30V or 1A across the contact.
Can the MDR-100-12 supply 7.5A continuously in a control cabinet?
Full 7.5A output is specified within the operating range of −10°C to +60°C, but the available output power derates at the higher end of that range. In a typical control cabinet ambient of 40–50°C, full load is usually achievable; above approximately 50°C, refer to the derating curve. Cabinet ventilation and clearance requirements (40mm top, 20mm bottom, 5mm sides) must also be met.
What certifications does the MDR-100-12 have?
Product documentation lists UL508, TUV BS EN/EN62368-1 and EAC TP TC 004 for the MDR-100-12. Some distributor listings also reference Class I, Division 2 Hazardous Locations T4; confirm the certificate and model coverage for your destination market before relying on hazardous-location suitability.
Ulasan
Belum ada ulasan.
Hanya pelanggan yang telah membeli produk ini dapat memberikan ulasan.
Pilihan lainnya untukmu
Lihat produk terkait
Ulasan
Belum ada ulasan.