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MDR-40-24 24V 1.7A 40.8W AC DC Industrial DIN Rail Power Supply
Rp270,000.00
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DAPPRA MDR-40-24 (SKU: OE83) is a 40W single output ultra-slim industrial DIN rail power supply with 24V DC / 1.67A output and universal 85–264 VAC input. Slim plastic housing, fanless natural convection cooling, complete protection functions, ideal for industrial control and automation.
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Overview
MDR-40-24 Overview
The DAPPRA MDR-40-24 (SKU: OE83) is the 24V model in the 40W MDR tier. It provides 24V DC at 1.7A — 40.8W — from a universal 85–264 VAC input in a 40 mm blue plastic housing, filling the gap between the 22.5 mm MDR-20-24 (1A) and the 60W MDR-60-24 (2.5A).
It is suited to 24V sensor groups, relay coils and small solenoid loads whose combined draw exceeds 1A but stays within 1.7A. The MDR-40-24 includes a dry DC OK relay contact (30V/1A) on TB2 pins 5–6, enabling direct PLC input without an external interposing relay. Efficiency is 88%, the highest in the 40W tier, and over-voltage protection is set at 31.2–36V.
Key Features
MDR-40-24 Key Features
- 40.8W · 24V / 1.7A24V DC at 1.7A, +V ADJ 24–30V.
- DC OK Relay ContactDry contact 30V/1A on TB2 pins 5–6.
- 40 mm HousingBlue plastic, 40 × 90 × 100 mm.
- Efficiency 88%Highest in the MDR-40 series.
- Overload 105–150%Constant-current limiting, auto-recovery.
- Over-Voltage 31.2–36VShutdown and re-power.
- TS35 DIN RailTS35/7.5 or 15, vertical only.
Specifications
MDR-40-24 Specifications
Output
| DC Voltage | 24V |
| Current | 1.7A |
| Power | 40.8W |
| Ripple | 150mVp-p |
| Adjustment | 24–30V |
| Tolerance | ±1.0% |
Input
| Voltage | 85–264VAC · 120–370VDC |
| Efficiency | 88% |
| No-Load | <0.75W |
Protection
| Overload | 105–150% · Auto-recovery |
| Over Voltage | 31.2–36V · Shutdown |
Notes24–30V adjustable. DC OK relay contact. Over-voltage 31.2–36V. Efficiency 88%.
Dimensions
MDR-40-24 Dimensions
Mechanical
| Width | 40 mm |
| Height | 90 mm |
| Depth | 100 mm |
| Weight | ~0.28 kg |
Clearances
| Top/Bottom | 40 / 20 mm |
| Sides | 5 mm |
| DIN Rail | TS35/7.5 or 15 |
Installation
MDR-40-24 Installation
01 / 06
Vertical Only
Input bottom, output top.
02 / 06
Clearances
5 mm sides, 40 mm top, 20 mm bottom.
03 / 06
TS35 Rail
TS35/7.5 or 15.
04 / 06
FG to PE
Frame ground to earth.
05 / 06
Temperature
−20 to +70°C, derate above 50°C.
06 / 06
Pollution Degree 2
Dry, ventilated cabinet.
Wiring
MDR-40-24 Wiring
TB1
| Pin | Assignment |
|---|---|
| 1 | FG |
| 2 | AC/N |
| 3 | AC/L |
TB2 (6 Pins)
| Pin | Assignment |
|---|---|
| 1,2 | +V |
| 3,4 | −V |
| 5,6 | DC OK relay contact |
DC Output24–30V adjustable. DC OK is a dry relay contact (30V/1A).
Safety
MDR-40-24 Safety & Cautions
- Qualified technician only.
- Do not connect primary and secondary.
- Burn hazard.
- Protect openings.
- FG to PE.
- Do not exceed 1.7A / 40.8W.
- Do not use DC OK as power output.
- Disconnect before maintenance.
Applications
MDR-40-24 Industrial Applications
24V Sensors
Relay Coils
Small Solenoids
PLC I/O
Machine Control
Building Automation
Test & Measurement
Process Control
Next Step
Need the MDR-40-24?
Contact DAPPRA Automation — or explore the full MDR Series.
Support
MDR-40-24 FAQ
What is the DAPPRA MDR-40-24?
The DAPPRA MDR-40-24 (SKU: OE83) is a 40.8W single-output industrial DIN rail power supply providing 24V DC at 1.7A from a universal 85–264VAC input, in a 40 mm blue plastic housing with 24–30V +V ADJ, DC OK relay contact and hiccup-mode protection.
How does the MDR-40-24 differ from the MDR-20-24?
The MDR-40-24 raises output current from 1A to 1.7A (40.8W vs 24W) and widens the housing from 22.5 mm to 40 mm. It also upgrades the DC OK from an active signal (MDR-20) to a dry relay contact (MDR-40), enabling direct PLC input without an interposing relay.
What is the over-voltage protection threshold of the MDR-40-24?
Over-voltage protection triggers at 31.2–36V (130–150% of 24V). The output shuts down and requires re-powering to recover. This threshold sits above the 30V maximum adjustment point, so normal potentiometer adjustment will not trigger it.
What is the output voltage adjustment range of the MDR-40-24?
24–30V via the front-panel +V ADJ potentiometer. The 30V upper limit is 25% above nominal; verify that every connected 24V device tolerates the higher voltage before turning it up. Most industrial 24V devices accept 26.4V (±10%), but the exact limit must be confirmed.
What is the typical efficiency of the MDR-40-24?
The MDR-40-24 achieves 88% typical efficiency at 230VAC input and full load, the highest in the MDR-40 series (5V: 78%; 12V: 86%; 48V: 88%).
What is the ripple and noise of the MDR-40-24?
Maximum 150mVp-p, measured at 20MHz bandwidth with a 0.1μF and 47μF parallel capacitor. This is higher than the 12V model (120mVp-p) but typical for a 24V output in this power class.
What is the input voltage range of the MDR-40-24?
85–264VAC single phase (47–63Hz) or 120–370VDC. Do not connect to 380VAC three-phase supply.
What protection functions does the MDR-40-24 include?
Short-circuit protection, overload protection (105–150%, constant-current limiting with auto-recovery) and over-voltage protection (31.2–36V, shutdown and re-power).
Does the MDR-40-24 have a DC OK relay contact?
Yes. TB2 pins 5 and 6 provide a dry DC OK relay contact rated 30V/1A resistive, suitable for direct connection to a PLC digital input.
Is the MDR-40-24 DIN rail mountable?
Yes, TS35/7.5 or TS35/15 DIN rail, 40 mm width, vertical orientation only.
What are the dimensions and weight of the MDR-40-24?
40 × 90 × 100 mm (W × H × D), approximately 0.28 kg.
What is the terminal pin assignment of the MDR-40-24?
TB1: Pin 1 = FG, Pin 2 = AC/N, Pin 3 = AC/L. TB2 (6 pins): Pins 1,2 = +V; Pins 3,4 = −V; Pins 5,6 = DC OK relay contact.
Can the MDR-40-24 drive a 24V solenoid or relay coil?
A 24V solenoid or relay coil can be powered if its steady-state and inrush current stay within 1.7A. Add a flyback diode across the coil to suppress inductive kick. Verify that inrush duration does not exceed the hiccup response time.
Can the MDR-40-24 be used in a hazardous location?
The MDR-40 series is not certified for Class I Division 2 by default in all market variants. The MDR-60 and MDR-100 series carry the Div 2 T4 certification. Confirm the specific MDR-40-24 certificate before installation in a hazardous area.
What certifications does the MDR-40-24 have?
UL508, UL60950-1, TUV BS EN/EN60950-1, EAC TP TC 004, BSMI CNS14336-1 and AS/NZS 60950.1 (series-level). Confirm model coverage for your destination market.
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Overview
MDR-40-24 Overview
The DAPPRA MDR-40-24 (SKU: OE83) is the 24V model in the 40W MDR tier. It provides 24V DC at 1.7A — 40.8W — from a universal 85–264 VAC input in a 40 mm blue plastic housing, filling the gap between the 22.5 mm MDR-20-24 (1A) and the 60W MDR-60-24 (2.5A).
It is suited to 24V sensor groups, relay coils and small solenoid loads whose combined draw exceeds 1A but stays within 1.7A. The MDR-40-24 includes a dry DC OK relay contact (30V/1A) on TB2 pins 5–6, enabling direct PLC input without an external interposing relay. Efficiency is 88%, the highest in the 40W tier, and over-voltage protection is set at 31.2–36V.
Key Features
MDR-40-24 Key Features
- 40.8W · 24V / 1.7A24V DC at 1.7A, +V ADJ 24–30V.
- DC OK Relay ContactDry contact 30V/1A on TB2 pins 5–6.
- 40 mm HousingBlue plastic, 40 × 90 × 100 mm.
- Efficiency 88%Highest in the MDR-40 series.
- Overload 105–150%Constant-current limiting, auto-recovery.
- Over-Voltage 31.2–36VShutdown and re-power.
- TS35 DIN RailTS35/7.5 or 15, vertical only.
Specifications
MDR-40-24 Specifications
Output
| DC Voltage | 24V |
| Current | 1.7A |
| Power | 40.8W |
| Ripple | 150mVp-p |
| Adjustment | 24–30V |
| Tolerance | ±1.0% |
Input
| Voltage | 85–264VAC · 120–370VDC |
| Efficiency | 88% |
| No-Load | <0.75W |
Protection
| Overload | 105–150% · Auto-recovery |
| Over Voltage | 31.2–36V · Shutdown |
Notes24–30V adjustable. DC OK relay contact. Over-voltage 31.2–36V. Efficiency 88%.
Dimensions
MDR-40-24 Dimensions
Mechanical
| Width | 40 mm |
| Height | 90 mm |
| Depth | 100 mm |
| Weight | ~0.28 kg |
Clearances
| Top/Bottom | 40 / 20 mm |
| Sides | 5 mm |
| DIN Rail | TS35/7.5 or 15 |
Installation
MDR-40-24 Installation
01 / 06
Vertical Only
Input bottom, output top.
02 / 06
Clearances
5 mm sides, 40 mm top, 20 mm bottom.
03 / 06
TS35 Rail
TS35/7.5 or 15.
04 / 06
FG to PE
Frame ground to earth.
05 / 06
Temperature
−20 to +70°C, derate above 50°C.
06 / 06
Pollution Degree 2
Dry, ventilated cabinet.
Wiring
MDR-40-24 Wiring
TB1
| Pin | Assignment |
|---|---|
| 1 | FG |
| 2 | AC/N |
| 3 | AC/L |
TB2 (6 Pins)
| Pin | Assignment |
|---|---|
| 1,2 | +V |
| 3,4 | −V |
| 5,6 | DC OK relay contact |
DC Output24–30V adjustable. DC OK is a dry relay contact (30V/1A).
Safety
MDR-40-24 Safety & Cautions
- Qualified technician only.
- Do not connect primary and secondary.
- Burn hazard.
- Protect openings.
- FG to PE.
- Do not exceed 1.7A / 40.8W.
- Do not use DC OK as power output.
- Disconnect before maintenance.
Applications
MDR-40-24 Industrial Applications
24V Sensors
Relay Coils
Small Solenoids
PLC I/O
Machine Control
Building Automation
Test & Measurement
Process Control
Next Step
Need the MDR-40-24?
Contact DAPPRA Automation — or explore the full MDR Series.
Support
MDR-40-24 FAQ
What is the DAPPRA MDR-40-24?
The DAPPRA MDR-40-24 (SKU: OE83) is a 40.8W single-output industrial DIN rail power supply providing 24V DC at 1.7A from a universal 85–264VAC input, in a 40 mm blue plastic housing with 24–30V +V ADJ, DC OK relay contact and hiccup-mode protection.
How does the MDR-40-24 differ from the MDR-20-24?
The MDR-40-24 raises output current from 1A to 1.7A (40.8W vs 24W) and widens the housing from 22.5 mm to 40 mm. It also upgrades the DC OK from an active signal (MDR-20) to a dry relay contact (MDR-40), enabling direct PLC input without an interposing relay.
What is the over-voltage protection threshold of the MDR-40-24?
Over-voltage protection triggers at 31.2–36V (130–150% of 24V). The output shuts down and requires re-powering to recover. This threshold sits above the 30V maximum adjustment point, so normal potentiometer adjustment will not trigger it.
What is the output voltage adjustment range of the MDR-40-24?
24–30V via the front-panel +V ADJ potentiometer. The 30V upper limit is 25% above nominal; verify that every connected 24V device tolerates the higher voltage before turning it up. Most industrial 24V devices accept 26.4V (±10%), but the exact limit must be confirmed.
What is the typical efficiency of the MDR-40-24?
The MDR-40-24 achieves 88% typical efficiency at 230VAC input and full load, the highest in the MDR-40 series (5V: 78%; 12V: 86%; 48V: 88%).
What is the ripple and noise of the MDR-40-24?
Maximum 150mVp-p, measured at 20MHz bandwidth with a 0.1μF and 47μF parallel capacitor. This is higher than the 12V model (120mVp-p) but typical for a 24V output in this power class.
What is the input voltage range of the MDR-40-24?
85–264VAC single phase (47–63Hz) or 120–370VDC. Do not connect to 380VAC three-phase supply.
What protection functions does the MDR-40-24 include?
Short-circuit protection, overload protection (105–150%, constant-current limiting with auto-recovery) and over-voltage protection (31.2–36V, shutdown and re-power).
Does the MDR-40-24 have a DC OK relay contact?
Yes. TB2 pins 5 and 6 provide a dry DC OK relay contact rated 30V/1A resistive, suitable for direct connection to a PLC digital input.
Is the MDR-40-24 DIN rail mountable?
Yes, TS35/7.5 or TS35/15 DIN rail, 40 mm width, vertical orientation only.
What are the dimensions and weight of the MDR-40-24?
40 × 90 × 100 mm (W × H × D), approximately 0.28 kg.
What is the terminal pin assignment of the MDR-40-24?
TB1: Pin 1 = FG, Pin 2 = AC/N, Pin 3 = AC/L. TB2 (6 pins): Pins 1,2 = +V; Pins 3,4 = −V; Pins 5,6 = DC OK relay contact.
Can the MDR-40-24 drive a 24V solenoid or relay coil?
A 24V solenoid or relay coil can be powered if its steady-state and inrush current stay within 1.7A. Add a flyback diode across the coil to suppress inductive kick. Verify that inrush duration does not exceed the hiccup response time.
Can the MDR-40-24 be used in a hazardous location?
The MDR-40 series is not certified for Class I Division 2 by default in all market variants. The MDR-60 and MDR-100 series carry the Div 2 T4 certification. Confirm the specific MDR-40-24 certificate before installation in a hazardous area.
What certifications does the MDR-40-24 have?
UL508, UL60950-1, TUV BS EN/EN60950-1, EAC TP TC 004, BSMI CNS14336-1 and AS/NZS 60950.1 (series-level). Confirm model coverage for your destination market.
1 ulasan untuk MDR-40-24 24V 1.7A 40.8W AC DC Industrial DIN Rail Power Supply
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