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Mean Well MDR-100-12 Single Output Industrial Power Supply 100W 12V 7.5A - DIN Rail

ultra slimbuilt-in active PFC function
SKU MDR-100-12
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Model

Select model — 5 in this family

MDR-100-12
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Overview

MDR-100-12 is the 12V output model of this series: rated current 7.5A, rated power 90W, typical efficiency 83%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • ZCS/ZVS technology to reduce power dissipation
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • DC OK relay contact
  • No load power consumption<1W
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty

Specifications

MDR-100-12Specifications from the official datasheet (2025-12-12 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
7.5A
CURRENT RANGE
0 ~ 7.5A
RATED POWER
90W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE ADJ. RANGE
12 ~ 15V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±1.0%
LOAD REGULATION
±1.0%
SETUP, RISE TIMENote.5
3000ms, 50ms/230VAC 3000ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.)
50ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGENote.6
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
PF≧0.95/230VAC PF≧0.98/115VAC at full load
EFFICIENCY (Typ.)
83%
AC CURRENT (Typ.)
1.3A/115VAC 0.8A/230VAC
INRUSH CURRENT (Typ.)
COLD START 30A/115VAC 60A/230VAC
LEAKAGE CURRENT
<1mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 150% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE
15.6 ~ 18V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
Shut down o/p voltage, auto-recovery or re-power on to recover

FUNCTION

DC OK SIGNAL
Relay contact rating(max.): 30V/1A resistive

ENVIRONMENT

WORKING TEMP.
-10 ~ +60℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
Component : 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ; Mounting : Compliance to IEC60068-2-6

SAFETY & EMC (Note 4)

SAFETY STANDARDS
UL508, TUV BS EN/EN62368-1, EAC TP TC 004, BSMI CNS15598-1, AS/NZS 60950.1,BIS IS13252(Part1):2010/IEC 609501:2005 (except for 48) approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32),BS EN/EN61204-3 Class B,BS EN/EN61000-3-2,-3,EAC TP TC 020,CNS15936 Class B
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN61204-3, heavy industry level, EAC TP TC 020

OTHERS

MTBF
2217.8K hrs min. Telcordia SR-332 (Bellcore) ; 346.5K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
55*90*100mm (W*H*D)
PACKING
0.42Kg; 30pcs/13.6Kg/0.82CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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. For guidance on how to perform these EMC tests, please refer to "EMI testing of component power supplies." (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. Length of set up time is measured at first cold start. Turning ON/OFF the power supply may lead to increase of the set up time.
  6. 6. Deating maybe needed under low input voltages, please check the derating curve for more detail.
  7. 7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

Technical drawings

MDR-100-12 Mechanical Specification
Mechanical Specification
MDR-100-12 Block Diagram
Block Diagram
MDR-100-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the MDR-100-12 for a 12V industrial control panel or automation cabinet?

Yes, this model is intended for higher-load 12V DC applications in industrial control panels, automation cabinets, and DIN rail assemblies as long as the total load stays within 90W and 7.5A. Its output can also be adjusted from 12V up to 15V if the load needs a slightly higher voltage.

Is the MDR-100-12 suitable for building management equipment that needs more 12V current on DIN rail?

Yes, it can support building management and panel-mounted control equipment that requires 12V DC up to 7.5A. The DIN rail design keeps it aligned with enclosure-based control systems rather than open bench use.

Will the MDR-100-12 fit where a higher-power DIN rail supply is needed but panel width still matters?

Yes, the unit measures 55 mm wide, 90 mm high and 100 mm deep, so it takes 55 mm of rail width. It is built for DIN rail mounting on TS35/7.5 or TS35/15 rails in organized control cabinets.

Can the MDR-100-12 be used for heavier 12V loads in industrial automation compared with smaller MDR models?

Yes, the MDR-100-12 delivers 90W at 12V and up to 7.5A, with constant current limiting overload protection at 105 ~ 150% of rated power that recovers automatically. Ratings of smaller MDR models are not covered by this datasheet, so compare them using their own spec sheets.

How does the MDR-100-12 compare with other MDR series options?

Within the MDR-100 series, the MDR-100-12 provides 90W at 12V and 7.5A with 83% typical efficiency, the MDR-100-24 provides 96W at 24V and 4A with 86%, and the MDR-100-48 provides 96W at 48V and 2A with 87%. All three share the same 55 x 90 x 100 mm DIN rail housing and 85 ~ 264VAC input.

Is the MDR-100-12 intended for exposed environments or for use inside an enclosure?

The published operating temperature range is -10°C to +60°C, which supports industrial cabinet conditions within that range. The provided specs do not list an IP rating, so this model is best treated as a control cabinet or enclosure power supply rather than a unit for exposed locations.

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Mean Well MDR-100-12 Single Output Industrial Power Supply 100W 12V 7.5A - DIN Rail
Mean Well

Mean Well MDR-100-12 Single Output Industrial Power Supply 100W 12V 7.5A - DIN Rail

MDR-100-12 is the 12V output model of this series: rated current 7.5A, rated power 90W, typical efficiency 83%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • ZCS/ZVS technology to reduce power dissipation
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • DC OK relay contact
  • No load power consumption<1W
  • LED indicator for power on
  • 100% full load burn-in test
  • 3 years warranty

Model

  • 10W 12V
  • 100W 12V
  • 20W 12V
  • 40W 12V
  • 60W 12V
View product