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Mean Well

Mean Well SE-450-5 Power Supply 375W 5V 75A

economical model medium to high power(450W~1500W)
SKU SE-450-5
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End of Life, Succeeded by LRS-450-5
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Overview

SE-450-5 is the 5V output model of this series: rated current 75A, rated power 375W, typical efficiency 78%.

Features

  • AC input active surge current limiting
  • AC input range selected by switch
  • Protections: Short circuit /Overload / Over voltage / Over temperature
  • Forced air cooling by built-in DC ball bearing fan
  • Built-in remote sense function
  • LED indicator for power on
  • UL approved
  • 2 years warranty

Specifications

SE-450-5Specifications from the official datasheet (2024-09-30 edition)

OUTPUT

DC VOLTAGE
5V
RATED CURRENT
75A
CURRENT RANGE
0 ~ 75A
RATED POWER
375W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGE
4.5 ~ 5.5V
VOLTAGE TOLERANCENote.3
±3.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±2.0%
SETUP, RISE TIME
1500ms, 50ms/230VAC 1500ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.)
16ms/230VAC 12ms/115VAC at full load

INPUT

VOLTAGE RANGE
90 ~ 132VAC / 180 ~ 264VAC selected by SW 254 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
78%
AC CURRENT (Typ.)
10A/115VAC 6A/230VAC
INRUSH CURRENT (Typ.)
35A/115VAC 55A/230VAC
LEAKAGE CURRENT
<2.5mA / 240VAC

PROTECTION

OVERLOAD
105 ~ 150% rated output power Protection type : Shut down o/p voltage, re-power on to recovery
OVER VOLTAGE
5.75 ~ 6.75V Protection type : Shut down o/p voltage, re-power on to recovery
OVER TEMPERATURE
Shut down o/p voltage, recovers automatically after temperature goes down

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
±0.05%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY

SAFETY STANDARDS
UL62368-1, EAC TP TC 004 approved; Design refer to BS EN/EN62368-1
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

OTHERS

MTBF
1557.5 K hrs min. Telcordia SR-332 (Bellcore) ; 224.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
225*124*50mm (L*W*H)
PACKING
1.25Kg;12PCS/16Kg/1CUFT
Test conditions and notes5
  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 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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).
  5. 5. This power supply does not meet the harmonic current requirements outlined by BS EN/EN61000-3-2. Please do not use this power supply under the following conditions: a) the end-devices is used within the European Union, and b) the end-devices is connected to public mains supply with 220Vac or greater rated nominal voltage, and c) the power supply is: - installed in end-devices with average or continuous input power greater than 75W, or - belong to part of a lighting system Exception: Power supplies used within the following end-devices do not need to fulfill BS EN/EN61000-3-2 a) professional equipment with a total rated input power greater than 1000W; b) symmetrically controlled heating elements with a rated power less than or equal to 200W

Technical drawings

SE-450-5 Mechanical Specification
Mechanical Specification
SE-450-5 Block Diagram
Block Diagram
SE-450-5 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SE-450-5 for a 5V PLC, logic, or controller power bus?

Yes, if the system requires a constant 5V DC source and the total load stays within 75A and 375W. This model is built as a constant-voltage 5V supply rather than a higher-voltage industrial DC bus unit.

Is the SE-450-5 a good fit for a high-current 5V embedded or SBC rack?

It can be a fit for 5V embedded platforms, processor boards, or controller racks that need high current at a fixed 5V output. The available capacity is 75A, with a total output rating of 375W.

Can this model power 5V industrial electronics or communication boards?

Yes, for 5V industrial electronics that need constant-voltage DC and draw no more than 75A combined. It is intended for applications where the equipment is specifically designed around a 5V input rail.

Would the SE-450-5 work for a 5V test fixture or production bench setup?

It is suitable for 5V bench or fixture use when the connected load needs a constant 5V supply. Its output rating of 375W and 75A, adjustable from 4.5 to 5.5V, supports higher-current 5V DC loads.

What are the key differences between the SE-450-5 and other SE-450 power supplies?

In the SE-450 range, the listed outputs are 3.3V at 75A and 247.5W, 5V at 75A and 375W, 12V at 37.5A and 450W, 15V at 30A and 450W, 24V at 18.8A and 451.2W, 36V at 12.5A and 450W, and 48V at 9.4A and 451.2W. The SE-450-5 is the 5V high-current version in that group.

Can the SE-450-5 be used in hot or cold equipment rooms?

The specified operating range is -10°C to +60°C, so that is the stated ambient range for this model. The provided specs do not include an IP rating, so enclosure sealing or outdoor exposure capability is not defined here.

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Mean Well SE-450-5 Power Supply 375W 5V 75A
Mean Well

Mean Well SE-450-5 Power Supply 375W 5V 75A

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SE-450-5 is the 5V output model of this series: rated current 75A, rated power 375W, typical efficiency 78%.

Features

  • AC input active surge current limiting
  • AC input range selected by switch
  • Protections: Short circuit /Overload / Over voltage / Over temperature
  • Forced air cooling by built-in DC ball bearing fan
  • Built-in remote sense function
  • LED indicator for power on
  • UL approved
  • 2 years warranty
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