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Mean Well

Mean Well SE-450-48 Power Supply 450W 48V 9.4A

economical model medium to high power(450W~1500W)
SKU SE-450-48
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Select model — 4 in this family

SE-450-48
End of Life, Succeeded by LRS-450-48
Available to order
|

Overview

SE-450-48 is the 48V output model of this series: rated current 9.4A, rated power 451.2W, typical efficiency 88%.

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-450-48Specifications from the official datasheet (2024-09-30 edition)

OUTPUT

DC VOLTAGE
48V
RATED CURRENT
9.4A
CURRENT RANGE
0 ~ 9.4A
RATED POWER
451.2W
RIPPLE & NOISE (max.)Note.2
200mVp-p
VOLTAGE ADJ. RANGE
43.2 ~ 52.8V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.2%
LOAD REGULATION
±0.5%
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.)
88%
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
57.6 ~ 67.2V 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-450-48 Mechanical Specification
Mechanical Specification
SE-450-48 Block Diagram
Block Diagram
SE-450-48 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the SE-450-48 for a 48V industrial control cabinet?

Yes, this is a constant-voltage 48V power supply rated for 451.2W and 9.4A. That makes it appropriate for 48V control or automation loads that need a fixed 48V DC source within that output capacity.

Is the SE-450-48 suitable for 48V telecom or network equipment that needs a fixed DC supply?

It can be used where the equipment requires a constant 48V DC input and the load stays within 9.4A and 451.2W. Buyers should match the equipment requirement to the unit's 48V constant-voltage output rather than to a different DC voltage.

Can this power supply run a 48V embedded system or test bench load?

Yes, it fits 48V embedded or bench setups that need a stable constant-voltage source. The available output is 48V at up to 9.4A, with a total power rating of 451.2W.

Would the SE-450-48 work for 48V automation peripherals or DC actuators?

It is intended for 48V DC applications that use constant-voltage power and stay within 9.4A. For automation hardware, the key match is that the load must be designed for 48V DC and fit inside the 451.2W output limit.

How does the SE-450-48 compare with other SE-450 models?

Within the SE-450 family, the listed constant-voltage options 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-450-48 is the 48V version in that output range.

Is the SE-450-48 meant for indoor or outdoor environments?

The provided specs list an operating temperature range of -10°C to +60°C, but they do not list an IP rating. Based on that product data, temperature capability is stated, while outdoor or water-exposure protection is not specified here.

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Mean Well SE-450-48 Power Supply 450W 48V 9.4A
Mean Well

Mean Well SE-450-48 Power Supply 450W 48V 9.4A

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SE-450-48 is the 48V output model of this series: rated current 9.4A, rated power 451.2W, typical efficiency 88%.

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

Model

  • 450W 48V
  • 1000W 48V
  • 1500W 48V
  • 600W 48V
View product

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