MEAN WELL MDR-40 Series: 40W Industrial DIN Rail Power Supply

Key Features

Universal AC input / Full range
Protections: Short circuit / Overload / Over voltage
Cooling by free air convection
Can be installed on DIN rail TS-35/7.5 or 15
Class I, Div 2 Hazardous Locations T4
LED indicator for power on
DC OK relay contact
No load power consumption < 0.75W
100% full load burn-in test
3 years warranty

Specifications

MODEL	MDR-40-5	MDR-40-12	MDR-40-24	MDR-40-48
DC VOLTAGE	5V	12V	24V	48V
RATED CURRENT	6A	3.33A	1.7A	0.83A
CURRENT RANGE	0~6A	0~3.33A	0~1.7A	0~0.83A
RATED POWER	30W	40W	40.8W	39.8W
RIPPLE & NOISE (max.) Note.2	80mVp-p	120mVp-p	150mVp-p	200mVp-p
OUTPUT VOLTAGE ADJ. RANGE	5~6V	12~15V	24~30V	48~56V
VOLTAGE TOLERANCE Note.3	±2.0%	±1.0%	±1.0%	±1.0%
LINE REGULATION	±1.0%	±1.0%	±1.0%	±1.0%
LOAD REGULATION	±1.0%	±1.0%	±1.0%	±1.0%
SETUP, RISE TIME Note.5	500ms, 30ms/230VAC	500ms, 30ms/115VAC at full load
HOLD UP TIME (Typ.)	50ms/230VAC	20ms/115VAC at full load
VOLTAGE RANGE	85~264VAC / 120~370VDC
FREQUENCY RANGE	47~63Hz
EFFICIENCY (Typ.)	78%	85%	88%	88%
AC CURRENT (Typ.)	1.1A/115VAC	0.7A/230VAC
INRUSH CURRENT (Typ.)	COLD START 30A/115VAC	60A/230VAC
LEAKAGE CURRENT	<1mA/240VAC
OVERLOAD PROTECTION	105~150% rated output power; Protection type: Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE	6.25~7.25V	15.6~18V	31.2~36V	57.6~64.8V
	Protection type: Shut down o/p voltage, re-power on to recover
FUNCTION DC OK SIGNAL	Relay contact rating (max.): 30V/1A resistive
WORKING TEMP.	-20~+70°C (Refer to "Derating Curve")
WORKING HUMIDITY	20~90% RH non-condensing
ENVIRONMENT STORAGE TEMP., HUMIDITY	-40~+85°C, 10~95% RH
TEMP. COEFFICIENT	±0.03%/°C (0~50°C)
VIBRATION	Component: 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
SAFETY STANDARDS	UL508, UL62368-1, TUV BS EN/EN62368-1, Class I, Div. 2 Group A, B, C, D Hazardous Locations T4, EAC TP TC 004, BSMI CNS14336-1, AS/NZS 60950.1, IS13252(Part1)/IEC60950-1(except 48V) approved
SAFETY & 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°C/70% RH
EMC (Note 4)
EMC EMISSION	Compliance to BS EN/EN55032 (CISPR32), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS13438 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
MTBF	2418.5K hrs min. Telcordia SR-332 (Bellcore); 301.7K hrs min. MIL-HDBK-217F (25°C)
DIMENSION	4090100mm (WHD)
PACKING	0.3Kg; 42pcs/13.6Kg/0.82CUFT

Diagrams and Mechanical Information

Mechanical Specification

Illustrates the physical dimensions and mounting interface for the power supply. It shows a unit designed for installation on standard DIN rails, specifically TS35/7.5 or TS35/15. The diagram indicates the width (35mm), height (90mm), and depth (100mm) of the unit, along with terminal block connections for AC input (L, N, FG), DC output (+V, +V, -V, -V), and a DC OK signal output.

Block Diagram

Depicts the internal functional blocks of the power supply. The signal path starts with the AC input, which goes through an EMI Filter. This is followed by a Rectifier & Filter stage, then the Power Switching stage, and finally another Rectifier & Filter stage before reaching the DC Output. Control circuitry, Overload Protection (O.L.P.), Over Voltage Protection (O.V.P.), and a Detection Circuit for DC OK status are also shown integrated within the system. The diagram also indicates the switching frequency (fosc: 60KHz).

DC OK Relay Contact

This feature provides a relay contact that indicates the status of the power supply unit (PSU).

Contact Close: Indicates the PSU is turned on and the DC output is OK.
Contact Open: Indicates the PSU has turned off or there is a DC Fail condition.
Contact Ratings (max.): 30V / 1A resistive load.

Derating Curve

This graph illustrates the power derating based on ambient temperature. It shows that the power supply can operate at 100% load up to an ambient temperature of 45°C. Beyond 45°C, the load capacity decreases linearly, reaching 0% load at 70°C. The temperature axis ranges from -20°C to 70°C (vertical).

Output Derating VS Input Voltage

This graph shows how the output load capacity varies with the input AC voltage. The power supply maintains 100% load capacity across a wide input voltage range, approximately from 95VAC to 264VAC at 60Hz. Below 95VAC, the load capacity begins to derate. The input voltage axis ranges from 85VAC to 264VAC.

Notes

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature.
2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1 μF & 47 μF parallel capacitor.
3. Tolerance: includes set up tolerance, line regulation and load regulation.
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 meanwell.com).
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. The ambient temperature derating of 3.5°C/1000m with fanless models and of 5°C/1000m with fan models for operating altitude higher than 2000m(6500ft).

Resources

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