Page 90 MEAN WELL INDUSTRIAL POWER SUPPLY CATALOG

Harsh Environment 320~480W Single Output

Features
• Universal AC input 90~305VAC
• Built-in active PFC function
HEP-480 • High efficiency up to 95%
• Fanless design, cooling by free air convection
• Ultra-wide operating temperature
• Meet 6kV surge immunity level
• Withstand 10G vibration test
• Operating altitude up to 5000 meters
• Protections: Short circuit / Overload /
HEP-320
Over voltage / Over temperature
• Multiple models for choice:
A-Type: IP65 rated, Vo and Io can be adjusted
INPUT OUTPUT through internal potentiometer
Standard • Blank-Type(option): IP68 rated, Vo and Io fixed

Optional • Suitable for general industrial applications at
(Contact MW high/low temperature, high dust, high moisture,
for details)
high vibration, high salt or outdoor environment
A Blank • 6 years warranty

General Specification (Please refer to www.meanwell.com for detail spec.)

Model No. HEP-320 HEP-480
AC input voltage range 90~305VAC; 127~431VDC

AC inrush current (max.) Cold start, 70A at 230VAC Cold start, 35A at 230VAC
Vo: -10%~+10% by potentiometer (HEP-320 A-Type only) Vo: -15%~+5% by potentiometer
DC adjustment range Io: 50%~100% of rated output current by Io: 50%~100% of rated output current by potentiometer
potentiometer (A-Type only)
Overload protection 105%~125% hiccup mode, auto-recovery 105%~125% constant current limiting, auto-recovery

Over voltage protection 108%~135% rated output voltage
Setup, rise, hold up time 500ms, 80ms, 15ms at full load and 230VAC 500ms, 80ms, 16ms at full load and 230VAC
Withstand voltage I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG: 1.5kVAC
Working temperature -55~+70°C (refer to output derating curve) -55~+65°C (refer to output derating curve)
Safety standards UL62368-1, EAC TP TC 004 approved ; Design refer to TUV EN62368-1
EMC standards EN55032 class B, EN61000-3-2,3, EN61000-4-2,3,4,5,6,8,11, EAC TP TC 020, EN55024
Input UL rated, SJTW 18AWGx3C (30cm) UL rated, SJOW 17AWGx3C (30cm)
Connection
Output SJTW 14AWGx2C (30cm) SJOW 17AWGx2C+17AWGx2C
Dimension (LxWxH)(mm) 252x 90x 43.8 262x 125x 43.8

320W HEP-320 480W NEW HEP-480

Model No. Output Tol. R&N Effi. Model No. Output Tol. R&N Effi.
HEP-320-12 A 12V, 0~22.0A ±3.0% 150mV 91.0%
HEP-480-24 A 24V, 0~20A ±1.0% 200mV 94.0%
HEP-320-15 A 15V, 0~19.0A ±2.0% 150mV 92.5%
HEP-480-36 A 36V, 0~13.3A ±1.0% 250mV 95.0%
HEP-320-24 A 24V, 0~13.34A ±1.0% 150mV 94.0%
HEP-320-36 A 36V, 0~8.90A ±1.0% 250mV 94.0% HEP-480-48 A 48V, 0~10A ±1.0% 250mV 94.5%
HEP-320-48 A 48V, 0~6.70A ±1.0% 250mV 94.5%
HEP-480-54 A 54V, 0~8.9A ±1.0% 350mV 95.0%
HEP-320-54 A 54V, 0~5.95A ±1.0% 350mV 95.0%
= A or Blank, A: standard model(IP65), Blank: optional model(IP68) = A or Blank, A: standard model(IP65), Blank: optional model(IP68)

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