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Mean Well ERP-350-48 Switching Power Supply 350W 48V 7.3A
Overview
ERP-350-48 is the 48V output model of this series: rated current 7.3A, rated power 350.4W, typical efficiency 90%.
ERP-350 series is a 350W single output enclosed type AC/DC power supply . It adopts an aluminum case and the interior is semi-potted, protecting the internal electronic components from rain splash and dust. With the complete protection functions, ERP-350 is suitable for the applications such as outdoor LED channel letters, commercial display , etc.
Features
- AC input 180~264VAC
- Withstand 300VAC surge input for 5 seconds
- Design against rain splash
- Protections: Short circuit / Overload / Over voltage/ Over temperature
- Cooling by free air convection
- LED indicator for power on
- Low cost,high reliability
- 100% full load burn-in test
- 3 years warranty
Specifications
OUTPUT
- DC VOLTAGE
- 48V
- RATED CURRENT
- 7.3A
- CURRENT RANGE
- 0 ~ 7.3A
- RATED POWER
- 350.4W
- RIPPLE & NOISE (max.)Note.2
- 240mVp-p
- VOLTAGE ADJ. RANGE
- 43.2 ~ 52.8V
- VOLTAGE TOLERANCENote.3
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP, RISE TIME
- 1500ms, 200ms/230VAC
- HOLD UP TIME (Typ.)
- 20ms/230VAC
INPUT
- VOLTAGE RANGE
- 180 ~ 264VAC 254 ~ 370VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 90%
- AC CURRENT (Typ.)
- 4A/230VAC
- INRUSH CURRENT (Typ.)
- 90A/230VAC
- LEAKAGE CURRENT
- <1mA / 240VAC
PROTECTION
- OVER LOAD
- 120 ~ 160% rated output power 12-36V Hiccup mode, recovers automatically after fault condition is removed 48V Shut down and latch off o/p voltage, re-power on to recover
- OVER VOLTAGE
- 55.2 ~ 64.8V 12-36V Hiccup mode, recovers automatically after fault condition is removed 48V Shut down and latch off o/p voltage, re-power on to recover
- OVER TEMPERATURE
- 12-36V Shut down O/P voltage, recovers automatically after temperature goes down 48V Shut down and latch off o/p voltage, re-power on to recover
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +60℃ (Refer to output load derating curve)
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -30 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.05%/℃ (0 ~ 50℃)
- VIBRATION
- 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC
- SAFETY STANDARDS
- UL 62368-1,IEC 62368-1,GB 4943.1,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
- Refer to EN55022 (CISPR22) class A, EAC TP TC 020
- EMC IMMUNITY
- Refer to EN61000-4-5;light industry level, EAC TP TC 020
OTHERS
- MTBF
- 2396.7K hrs min. Telcordia SR-332 (Bellcore) 321Khrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 220.4*130*48mm (L*W*H)
- PACKING
- 0.9Kg; 9 pcs/11Kg/0.63CUFT
Test conditions and notes4
- 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 0.1uf & 47uf parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 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).
Technical drawings
Typical applications
- LED decoration/signage
- LED channel letters
- LED display
Downloads
FAQ
Can I use the ERP-350-48 for 48V industrial automation equipment?
Yes, this unit is a 48V constant voltage power supply rated for 350W and 7.3A, which makes it suitable for 48V automation equipment designed for that DC bus. It should be matched only to loads that require constant 48V output and stay within the 7.3A and 350W limits.
Is the ERP-350-48 a good fit for 48V control systems or industrial communication hardware?
It can be used where the equipment requires a regulated 48V constant voltage supply and the total load is within 350W and 7.3A. Note that on the 48V model, overload, over-voltage and over-temperature protection shut down and latch off the output, and the input must be re-powered to recover.
Can this power supply run 48V embedded or OEM electronics?
Yes, it is intended for 48V DC applications that need constant voltage output rather than constant current operation. The unit provides 48V at up to 7.3A with 350W total power, so it fits OEM or embedded systems designed around those ratings.
Would the ERP-350-48 work for 48V industrial test or monitoring systems?
It is suitable for 48V test, monitoring, or process-control systems that need a stable constant voltage source. The 180-264VAC input range supports operation from AC mains in that range while delivering up to 48V, 7.3A, and 350W on the output side.
What are the differences between the ERP-350-48 and the other ERP siblings listed here?
ERP-350-48 is the 350.4W, 48V, 7.3A model in the ERP-350 series. The other models are ERP-350-12 at 320.4W, 12V, 26.7A; ERP-350-24 at 350.4W, 24V, 14.6A; and ERP-350-36 at 349.2W, 36V, 9.7A.
Is the ERP-350-48 appropriate for indoor areas with temperature swings or occasional moisture exposure?
It is specified for operation from -30°C to +60°C (with output load derating), which supports use in environments with a broad temperature range. The datasheet states it is designed for outdoor application but should be installed in a sheltered place, and no IP rating is provided, so it is not defined as a fully weatherproof power supply.
Payment & Security
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Other ERP-350 Models
3 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well ERP-350-36 Switching Power Supply 350W 36V 9.7A | 349.2W | 36V | 9.7A | IP20 | $44.70 | View |
| Mean Well ERP-350-24 Switching Power Supply 350W 24V 14.6A | 350.4W | 24V | 14.6A | IP20 | $44.69 | View |
| Mean Well ERP-350-12 Switching Power Supply 350W 12V 26.7A | 320.4W | 12V | 26.7A | IP20 | $44.69 | View |
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