MEAN WELL Power Supply MDR-100 Series Single Output DIN Rail Mounted

Product Item : MDR-100 series
Category：DIN Rail Power Supplies
Wattage: 100W
Input Voltage: 85 ~ 264VAC or 120 ~ 370VDC
Output Current: 0 ~ 7.5A
Output Voltage: 12 ~ 48V
Product description：he Mean Well MDR-100 is a compact 100W DIN-rail power supply with universal AC input for industrial control. It features high efficiency and built-in protection in an ultra-slim design.
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MDR-100 Series - 96W Active PFC DIN Rail Power Supply (55mm, ZCS/ZVS, OTP, DC OK Relay)

✓ In Stock3-YearActive PFCZCS/ZVSOTP96W

				Key Performance at a Glance
			
						96W
					
						Max Power (24/48V)
					
						PF>0.98
					
						Active PFC (115V)
					
						87%
					
						Max Efficiency
					
						55mm
					
						Width
					
						OTP
					
						Over-Temp
					
						ZCS/ZVS
					
						Soft-Switching

Product Overview

The MDR-100 series is a platform-level upgrade from the MDR-40/60 family -- the first MDR model with Active PFC (PF>0.98), ZCS/ZVS soft-switching, and over-temperature protection. It moves to a 55mm chassis (from 40mm) and narrows the voltage lineup to 12V/24V/48V (dropping 5V). This is a higher-grade industrial platform designed for PFC compliance and thermal resilience rather than ultra-slim density.

The MDR-100 accepts universal 85~264Vac input with Active PFC achieving PF>0.98 at 115Vac and PF>0.95 at 230Vac -- essential for EN61000-3-2 harmonic compliance. AC current is 1.3A/115V, 0.8A/230V with 30A/60A inrush. Three voltages: 12V (7.5A/90W), 24V (4A/96W), and 48V (2A/96W). The 12V model delivers 90W while 24V/48V reach full 96W. Efficiency ranges from 83% (12V) to 87% (48V). The ZCS/ZVS (Zero Current/Voltage Switching) topology reduces switching losses and EMI -- a technology distinction from the hard-switching MDR-40/60.

New protection features: over-temperature protection (OTP) shuts down the output if internal temperature exceeds safe limits, with either auto-recovery or restart recovery. This is the first MDR with OTP, critical for sealed enclosure installations. The DC OK relay contact (NC, 30V/1A), CC overload 105~150%, and wide voltage adjust (12~15V, 24~30V, 48~56V) carry forward. Note: no HazLoc certification on MDR-100. Start-up time is 3000ms (PFC capacitor pre-charge) -- significantly longer than MDR-40/60's 500ms. Operating temperature narrows to -10~+60C (vs -20~+70C). No-load is <1W (vs <0.75W).

Certifications: UL508, TUV BS EN/EN62368-1, EAC, BSMI CNS15598-1, AS/NZS 60950.1, BIS IS13252 (except 48V). EMC is Class B with EN61000-6-2 heavy industrial immunity. At 55x90x100mm and 420g with 30 units per carton. 3-year warranty with 100% burn-in.

Product Images

Technical Specifications

First MDR with Active PFC + ZCS/ZVS + OTP. 55mm platform. 12V=90W. No HazLoc. BIS excl 48V.

Parameter	MDR-100-12	MDR-100-24	MDR-100-48
DC Output Voltage	12V	24V	48V
Rated Current	7.5A	4A	2A
Rated Power	90W	96W	96W
Ripple & Noise	120mVp-p	150mVp-p	200mVp-p
Voltage Adj Range	12~15V	24~30V	48~56V
Voltage Accuracy	+/-1.0%	+/-1.0%	+/-1.0%
Efficiency (Typ.)	83%	86%	87%
Power Factor (Typ.)	PF>0.98/115V, PF>0.95/230V (full load) -- Active PFC
Overload / OVP / OTP	105~150% CC auto-recovery \| OVP: shutdown+restart \| OTP: shutdown, auto/recovery restart
DC OK Signal	Relay NC, 30V/1A resistive

Input & Features (All Models)

Input Voltage Range	85~264Vac or 120~370Vdc; 47~63Hz
Active PFC	PF>0.98 @ 115Vac, PF>0.95 @ 230Vac -- first MDR with PFC for EN61000-3-2 harmonic compliance
AC Current / Inrush / No-Load	1.3A/115V, 0.8A/230V \| 30A/115V, 60A/230V (cold start) \| <1W
Leakage Current	<1mA / 240Vac
Start-up / Hold-up	3000ms/50ms @ 230V (PFC pre-charge); 3000ms/50ms @ 115V \| 50ms/230V, 20ms/115V
ZCS/ZVS Soft-Switching	Zero Current/Voltage Switching topology reduces switching losses and EMI -- distinct from hard-switching MDR-40/60
Operating / Storage Temp	-10~+60C (derating curve) \| -40~+85C, 10~95% RH
Temp Coefficient / Vibration	+/-0.03%/C (0~50C) \| 2G, 10~500Hz, IEC60068-2-6
Altitude	2,000m (derate 3.5C/1000m above)
Safety (No HazLoc)	UL508, TUV BS EN/EN62368-1, EAC, BSMI CNS15598-1, AS/NZS 60950.1, BIS IS13252 (except 48V)
Isolation	I/P-O/P: 3KVac \| I/P-FG: 2KVac \| O/P-FG: 0.5KVac \| All: >100Mohm/500Vdc/25C/70% RH
EMC Emissions / Immunity	Class B (EN55032/CNS15936), EN61000-3-2,-3 \| EN61000-6-2 Heavy Industrial
MTBF / Dimensions / Weight	2,217.8K hrs (Telcordia); 346.5K hrs (MIL-HDBK-217F, 25C) \| 55x90x100mm / 0.42kg / 30pcs per carton / 13.6kg

Key Features

Active PFC (PF>0.98) -- Harmonic Compliant
First MDR with Active PFC achieving PF>0.98 at 115V -- meets EN61000-3-2 harmonic limits without external filtering. Critical for EU installations and commercial buildings where harmonic compliance is mandatory.

ZCS/ZVS Soft-Switching -- Lower EMI, Higher Reliability
Zero Current/Voltage Switching topology reduces switching losses by 30%+ vs hard-switching MDR-40/60 -- lower component stress, reduced EMI, improved long-term reliability.

OTP Over-Temperature Protection -- Sealed Enclosure Safe
First MDR with dedicated thermal protection -- shuts down if internal temperature exceeds safe limits, reconnects on cool-down. Essential for installations in sealed enclosures with limited airflow.

96W with DC OK Relay + Heavy Industrial EMC
1.6x MDR-60 power with PFC, OTP, and galvanically isolated relay monitoring -- EN61000-6-2 immunity for factory floor 24V/48V control power that must comply with harmonics regulations

12V/7.5A High Current + Wide 15V Adj Span
90W 12V at 7.5A with 12~15V adjustment -- powers large 12V I/O clusters and actuator banks with PFC-corrected input for harmonic-sensitive installations

100% Burn-in + 3-Year Warranty
Every unit undergoes full-load burn-in with PFC + ZCS/ZVS topology -- the most technologically advanced MDR with OTP for the most demanding industrial control applications

Frequently Asked Questions

Why does MDR-100 need PFC when MDR-40/60 don't?

Active PFC (Power Factor Correction) is mandatory for EN61000-3-2 harmonic current compliance in equipment above 75W. At 96W, MDR-100 exceeds the 75W threshold where harmonics limits apply. MDR-40/60 (40-60W) are below this threshold. The PFC not only ensures compliance but also reduces reactive power, lowering upstream breaker and wiring requirements -- a significant benefit in panel design.

Why is start-up time 3000ms vs 500ms on MDR-40/60?

The PFC circuit requires bulk capacitor pre-charge before the main converter starts. This 3-second delay is normal for any PFC-equipped power supply and ensures the PFC boost converter is stable before the main output converter begins switching. If your application requires sub-second start-up, consider MDR-60 (no PFC, 500ms start).

Does MDR-100 have HazLoc certification?

No. MDR-100 does not carry Class I Div 2 Hazardous Locations certification. For hazardous area applications requiring a DIN rail supply, consider MDR-40 or MDR-60 which carry HazLoc T4. MDR-100 is designed for PFC compliance and thermal protection rather than hazardous area deployment.

How does OTP work on MDR-100?

When the internal temperature exceeds the OTP threshold, the output shuts down. The supply either auto-recovers when temperature drops below the safe threshold, or requires a power-cycle restart. The exact recovery method depends on the specific thermal fault condition. This is the only MDR model with dedicated over-temperature protection -- crucial for installations in sealed enclosures where ambient temperature can accumulate without active ventilation.