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Mean Well MSP-450-12 Power Supply 450W 12V 37.5A
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Mean Well MSP-450-12 Power Supply 450W 12V 37.5A
Overview
MSP-450-12 is the 12V output model of this series: rated current 37.5A, rated power 450W, typical efficiency 88%.
Features
- Universal AC input / Full range
- Built-in active PFC function, PF>0.95
- High efficiency up to 89.5%
- Withstand 300VAC surge input for 5 seconds
- Protections: Short circuit / Overload / Over voltage / Over temperature
- Built-in constant current limiting circuit
- Medical safety approved (MOOP level)
- Built-in cooling Fan ON-OFF control
- Built-in DC OK signal
- Built-in remote ON-OFF control
- Stand by 5V@0.3A
- Built-in remote sense function
- No load power consumption<0.6W (Note.6)
- 5 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 12V
- RATED CURRENT
- 37.5A
- CURRENT RANGE
- 0 ~ 37.5A
- RATED POWER
- 450W
- RIPPLE & NOISE (max.)Note.2
- 120mVp-p
- VOLTAGE ADJ. RANGE
- 10.2 ~ 13.8V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.3%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIME
- 1000ms, 100ms/230VAC 2500ms, 100ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 16ms/230VAC 16ms/115VAC at full load
INPUT
- VOLTAGE RANGENote.4
- 85 ~ 264VAC 120 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF>0.95/230VAC PF>0.99/115VAC at full load
- EFFICIENCY (Typ.)
- 88%
- AC CURRENT (Typ.)
- 5A/115VAC 2.4A/230VAC
- INRUSH CURRENT (Typ.)
- 35A/115VAC 70A/230VAC
- LEAKAGE CURRENT
- Earth leakage current < 300μA/264VAC , Touch leakage current < 100μA/264VAC
PROTECTION
- OVERLOAD
- 105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 14.4 ~ 16.8V Protection type : Shut down o/p voltage, re-power on to recover
- OVER TEMPERATURE
- Shut down o/p voltage, recovers automatically after temperature goes down
FUNCTION
- 5V STANDBY
- 5VSB : 5V@0.3A ; tolerance±5%, ripple : 50mVp-p(max.)
- DC OK SIGNAL
- PSU turn on : 3.3 ~ 5.6V ; PSU turn off : 0 ~ 1V
- REMOTE CONTROL
- RC+ / RC-: 4 ~ 10V or open = power on ; 0 ~ 0.8V or short = power off
- FAN CONTROL (Typ.)
- Load 20±10% or RTH2≧50℃ Fan on
ENVIRONMENT
- WORKING TEMP.
- -40 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- IEC 60601-1:2005+A1+A2, ANSI/AAMI ES60601-1:2005+A2, CAN/CSA C22.2 No. 60601-1:2014+A2 EAC TP TC 004 approved;Design refer to BS EN/EN60335-1, BS EN/EN 62368-1(by request)
- ISOLATION LEVEL
- Primary-Secondary: 2×MOOP, Primary-Earth: 1×MOOP, Secondary-Earth: 1×MOOP
- WITHSTAND VOLTAGE
- I/P-O/P:4KVAC 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/EN55011 (CISPR11) Class B, BS EN/ EN61000-3-2,-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/ EN61000-4-2,3,4,5,6,8,11, BS EN/ EN60601-1-2 , EAC TP TC 020
OTHERS
- MTBF
- 159.3K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 218*105*41mm (L*W*H)
- PACKING
- 1.19Kg; 12pcs/15.3Kg/0.81CUFT
Test conditions and notes9
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 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. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. Derating may be needed under low input voltages. Please check the derating curve for more details.
- 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. No load power consumption<0.5W when RC- & RC+ (CN100 pin1,2) 0 ~ 0.8V or short.
- 7. When the input voltage is less than 40VAC, the SPS may exhibit degradation of performance. The final product manufacturers must re-confirm this deviation that does not affect basic safety or essential performance.
- 8. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. 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 )
- 9. 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
Downloads
Datasheet1
Certificates3
Test reports1
Catalogues1
FAQ
Can I use the MSP-450-12 for a 12V industrial automation panel?
Yes, this is a constant voltage 12V power supply rated for 450W and 37.5A. That makes it suitable for automation panels or control systems designed around a 12V DC bus with higher total power demand.
Is the MSP-450-12 suitable for 12V communication, security, or monitoring equipment with multiple loads?
It can be a fit when the combined equipment load requires a regulated 12V output and stays within 450W and 37.5A. The constant voltage design is intended for systems that expect a 12V DC source rather than a higher-voltage supply.
Can the MSP-450-12 power 12V embedded or mobile-style electronics in fixed industrial equipment?
Yes, provided the equipment is specified for 12V input, this unit offers up to 37.5A from a 450W supply. That is useful for fixed installations where several 12V embedded devices or subsystems are powered from one supply.
Does the MSP-450-12 work in demanding temperature conditions?
The published operating range is -40°C to +70°C, with output derating at higher ambient temperatures per the derating curve. The provided specifications do not include an IP rating, so environmental suitability should be based on protected installation conditions rather than exposed outdoor use.
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