MDR-100-24 24V 4A 96W AC DC Industrial DIN Rail Power Supply

The DAPPRA MDR-100-24 (SKU: OE88) is a 96W single-output industrial DIN rail power supply providing 24V DC at 4A from a universal 85–264VAC input, in a 55 mm blue plastic housing with fanless cooling, DC OK relay contact and 24–30V +V ADJ adjustment.

The MDR-100-24 raises the output current from 2.5A to 4A (96W vs 60W) and widens the housing from 40 mm to 55 mm. It is the choice when a 24V load exceeds 2.5A but remains within 4A, and it carries the same DC OK relay contact and Div 2 T4 certification as the MDR-60-24.

Both are in the 100W class. The 24V model delivers 24V × 4A = 96W, while the 12V model is limited to 7.5A, giving 12V × 7.5A = 90W. The 24V output allows a slightly higher total wattage within the same power class.

24–30V via the front-panel +V ADJ potentiometer. The 30V upper limit is well above the 24V nominal; verify that every connected 24V device tolerates the higher voltage before turning the potentiometer up. Typical industrial 24V devices accept 26.4V (±10%), but the exact limit must be confirmed.

Over-voltage protection triggers at 30–36V (125–150% 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.

Yes, 4A at 24V equals 96W. Continuous full-load operation is specified within the −10°C to +60°C operating range; above approximately 50°C, refer to the derating curve. Cabinet clearance and ventilation must also be adequate.

The MDR-100-24 achieves 86% typical efficiency at 230VAC input and full load, higher than the MDR-100-12 (83%) and comparable to the MDR-100-48.

85–264VAC single phase (47–63Hz) or 120–370VDC. Do not connect to 380VAC three-phase supply.

Short-circuit protection, overload protection (105–150%, constant-current limiting with auto-recovery) and over-voltage protection (30–36V, shutdown and re-power).

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.

55 × 90 × 100 mm (W × H × D), approximately 0.42 kg.

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.

A 24V DC motor can be powered if its steady-state and startup current stay within 4A and the inductive kick is suppressed with a flyback diode. High-inrush motors may briefly enter the 105–150% overload window; verify that the startup surge duration is shorter than the hiccup response time.

Maximum 150mVp-p, measured at 20MHz bandwidth with a 0.1μF and 47μF parallel capacitor.

UL508, TUV BS EN/EN62368-1, EAC TP TC 004, BSMI CNS14336-1 and AS/NZS 60950.1. Distributor listings also reference Class I, Division 2 T4; confirm the certificate and model coverage for your destination market.