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Mean Well EPS-45-48 Power Supply 48W 48V 1A
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Mean Well EPS-45-48 Power Supply 48W 48V 1A
Overview
EPS-45-48 is the 48V output model of this series: rated current 1A, rated power 48W, typical efficiency 90%. Type Blank: Blank=PCB only.
Features
- Universal AC input / Full range
- Optional L-Bracket and cover
- High efficiency up to 90%
- Protections: Short circuit / Overload / Over voltage
- Cooling by free air convection
- 4"×2" compact size
- LED indicator for power on
- No load power consumption<0.3W
- Operating altitude up to 4000 meters
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- RATED CURRENT
- 1A
- CURRENT RANGE
- 0 ~ 1.1A
- RATED POWER
- 48W
- PEAK LOAD(10sec.)Note.6
- 52.8W
- RIPPLE & NOISE (max.)Note.2
- 300mVp-p
- VOLTAGE ADJ. RANGE
- 43.2 ~ 52.8V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±1.0%
- SETUP, RISE TIME
- 1000ms, 50ms/230VAC 2000ms, 50ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 50ms/230VAC 16ms/115VAC at full load
INPUT
- VOLTAGE RANGENote.5
- 90 ~ 264VAC 127 ~ 370VDC [DC input operation possible by connecting AC/N(+), AC/L(-)]
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 90%
- AC CURRENT (Typ.)
- 1.8A/115VAC 1 A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 60A/230VAC
- LEAKAGE CURRENT
- <2mA/240VAC
PROTECTION
- OVER LOAD
- 115 ~ 160% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- 53.3 ~ 64.8V Protection type : Shut down o/p voltage, re-power on to recover
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +70℃ (Refer to output load derating curve)
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃)
- OPERATING ALTITUDENote.7
- 4000 meters
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY & EMC (Note 4)
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, CCC GB4943.1, EAC TP TC 004 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) Class B, BS EN/EN61000-3-2,-3, GB9254.1 Class B,GB17625 Class A,EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, heavy industry level, EAC TP TC 020
OTHERS
- MTBF
- 2981.8K hrs min. Telcordia SR-332 (Bellcore) ; 652.4K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- PCB:101.6*50.8*29mm (L*W*H) ; with optional CASE:103.4*62*37mm (L*W*H)
- PACKING
- PCB: 0.14Kg; 96pcs/ 14.5Kg/1.39CUFT ; with optional CASE: 0.3Kg; 45pcs/ 14.5Kg/0.63CUFT
MODEL ENCODING
- Blank (this model)
- Blank=PCB only
- C
- Enclosed type
Test conditions and notes7
- 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 voltage. Please check the static characteristics for more details.
- 5. 33% Duty cycle maximum within every 30 seconds. Average output power should not exceed the rated power.
- 6. 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 )
- 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
Downloads
Datasheet1
Certificates4
Test reports1
Catalogues1
FAQ
Can I use the EPS-45-48 for a 48V industrial control or monitoring device?
Yes, if the device is designed for 48V constant-voltage input and draws no more than 1A. This supply provides up to 48W, which fits lower-power industrial control, monitoring, and interface equipment built around a 48V DC bus.
Is the EPS-45-48 suitable for small 48V telecom or network-support equipment?
It can be a fit for 48V telecom or network-support loads that need constant voltage and stay within 48W. The output limit is 1A, so it is best for lighter-duty 48V equipment rather than higher-draw systems.
Can this power a 48V embedded development or validation setup?
Yes, for embedded platforms, validation fixtures, or lab assemblies that require a stable 48V constant-voltage supply up to 1A. The 90-264VAC input is also useful when the same setup may be used on different AC input ranges.
Would the EPS-45-48 work for a compact 48V automation node?
Yes, if the automation node uses 48V DC and its load stays within 48W total. The smaller 101.6 × 50.8 × 29.0 mm form factor and 0.14 kg weight make it practical where space and weight matter.
Can the EPS-45-48 be used in outdoor or high-temperature locations?
The operating temperature range is -30°C to +70°C, but output load must be derated at higher temperatures per the derating curve. No IP rating is listed, so the published specs support indoor or otherwise protected use rather than direct outdoor exposure.
Payment & Security
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Other EPS-45 Models
13 other modelsCustomer reviews
Reviewed by 1 customer across the EPS series
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Replacement PS
Model: EPS-15-15 ×1, EPS-15-5 ×1, EPS-15-7.5 ×1Quantity: 1Power Supplies were used to replace the one that was removed on a Phillips PM6680 counter, a +5V, +15V and -7V. They seem to work well so far. I have to put in a boost converter on the +15V for space and not use the +15V EPS.
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