MEAN WELL HEP-150-12A is an industrial AC/DC power supply with a 12 V output rated at 12.5 A and 150 W. It is the IP65 A-type version with adjustable voltage and current. The aluminium case is fully potted with heat-conductive silicone for demanding environments with dust, humidity, oil and vibration. Cooling is by free-air convection, without a fan, and active PFC is built in.
Product Datasheet
Download MEAN WELL HEP-150 Datasheet (PDF)
The HEP-150 section is on PDF pages 5, 6, 7, 8. Refer to the complete mechanical drawings and notes when planning installation.
Model, Output Ratings and Adjustment
Complete order number
HEP-150-12A
Series
HEP-150
Configuration
IP65 A-type version with adjustable voltage and current
DC output voltage
12 V
Rated output current
12.5 A
Rated output power
150 W
Maximum output ripple and noise
150 mVp-p
Output voltage tolerance
±2.5%
Line regulation
±0.5%
Load regulation
±2.0%
Typical efficiency
91.5%
Ingress protection
IP65
Output voltage adjustment range
10.8–13.5 V
Constant-current level adjustment range
7.5–12.5 A
HEP identifies the series, 150 identifies the power class, and 12 identifies the nominal output voltage. The A suffix is the standard IP65 configuration with internal output-voltage and current-level adjustment.
Select the load so that output voltage, current and catalogue-rated power all remain within their applicable limits. Adjustment of voltage or current does not raise the rated power.
Unless otherwise specified, parameters are measured at 230 VAC input, rated load and 25°C ambient. Typical efficiency is a stated test value, not a guarantee at every input, load or temperature.
Ripple and noise are measured with 20 MHz bandwidth using a 12-inch twisted-pair wire terminated with 0.1 µF and 47 µF capacitors in parallel. Voltage tolerance includes setup tolerance, line regulation and load regulation.
Output voltage and constant-current level are adjusted with the internal potentiometers accessible by removing the rubber stopper on the case. Complete adjustment and restore the enclosure as instructed by the manufacturer before operation.
Input Supply and Start-up Characteristics
AC input voltage range
90–264 VAC
Extended operational AC input
277 VAC
DC input voltage range
128–370 VDC
Extended operational DC input
390 VDC
Input frequency
47–63 Hz
Typical power factor at 115 / 230 / 277 VAC
>0.98 / >0.95 / >0.92
Typical AC current at 115 / 230 / 277 VAC
1.7 / 0.75 / 0.7 A
Typical cold-start inrush current
65 A at 230 VAC
Leakage current
<0.75 mA at 277 VAC
Setup / rise time at 115 VAC
1000 / 50 ms
Setup / rise time at 230 VAC
500 / 50 ms
Typical hold-up time
16 ms at 115 / 230 VAC
The power-factor values apply at full load. The input-current figures correspond to the three AC voltages in the stated order.
The static input-voltage curve at 60 Hz marks 80% load at 90 VAC and 100% at 100 VAC, with the full-load plateau extending through the normal input range. The 277 VAC endpoint is marked operational; apply the input and thermal limits together.
Setup time is measured at the first cold start. Rapid ON/OFF cycling can increase setup time.
Setup, rise and hold-up times are specified at full load.
Protection and Recovery
Overcurrent / overload range
105–125%
Overcurrent / overload response
Constant-current limiting; automatic recovery after the fault is removed
Short-circuit response
Constant-current limiting; automatic recovery after the fault is removed
Overvoltage protection range
14–17 V
Overvoltage recovery
Output shutdown with automatic recovery or re-power recovery
Overtemperature recovery
Output shutdown; automatic recovery after temperature falls
Remove the cause of the fault before returning the unit to service. Protection thresholds do not provide additional continuous output capacity.
Cooling, Environment and Derating
Cooling
Fanless, free-air convection
Working ambient temperature
−55 to +70°C
Working humidity
20–95% RH, non-condensing
Storage temperature and humidity
−60 to +80°C; 10–95% RH, non-condensing
Temperature coefficient
±0.03%/°C from 0 to 60°C
Maximum operating altitude
5000 m
Vibration test
20–500 Hz; 10 G; 12 minutes per cycle; 72 minutes along each X, Y and Z axis
With horizontal mounting, the thermal curve allows 100% load from −55°C to 60°C, then falls to 60% at 70°C.
Above 2000 m operating altitude, reduce the permissible ambient temperature by 3.5°C per additional 1000 m for this fanless model. Maintain the free-air convection path and apply altitude, input-voltage and temperature derating together.
Wiring, Mechanical Dimensions and Installation
Catalogue dimensions, L × W × H
228 × 68 × 38.8 mm
Case reference
994D
Mechanical drawing tolerance
±1 mm
Longitudinal mounting reference
204 mm
Mounting-hole callout
4 × Ø4.2 mm
AC input cable
SJTW 18 AWG × 3 conductors
AC input conductors
FG: green/yellow; L: brown; N: blue
DC output cable
SJTW 14 AWG × 2 conductors
DC output conductors
+V: red; −V: black
Input and output cable drawing lengths
300 ±20 mm each
Connect the marked protective-earth conductor and observe DC polarity. Use the complete drawing for the mounting-hole coordinates, cable exit positions and required installation clearance.
The marked tc / T case point identifies the location for maximum-case-temperature measurement. Use the complete mechanical drawing and the manufacturer's installation instructions for mounting and wiring.
Configuration and Ingress-Protection Selection
This is the standard A-type IP65 configuration. Its output voltage and current level can be set through the internal potentiometers.
The optional blank-suffix version is a separate IP68 configuration with fixed output voltage and current level. Select the required complete model when ordering; its ingress rating does not transfer to this A-type unit.
Safety, EMC and Reliability
Catalogue-listed approvals
UL62368-1; IEC62368-1; EAC TP TC 004; IP65
Safety design reference
BS EN/EN62368-1
Withstand voltage, input to output
3.75 kVAC
Withstand voltage, input to FG
2 kVAC
Withstand voltage, output to FG
1.5 kVAC
Isolation resistance
100 MΩ at 500 VDC, 25°C and 70% RH
EMC emissions
BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC 020
EMC immunity
BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; light industry level with 6 kV surge; EAC TP TC 020
Minimum MTBF, Telcordia SR-332
1967.4 thousand hours
Minimum MTBF, MIL-HDBK-217F
164.2 thousand hours at 25°C
Manufacturer catalogue warranty
6 years
The power supply is a component for integration into final equipment. The final equipment manufacturer must requalify EMC compliance with the complete installation and configuration.
Additional safety and EMC design references are BS EN/EN60598-1, CNS15233, GB7000.1 and FCC Part 18. These design references are distinct from the catalogue's listed approvals.
Mass Reference and Intended Applications
Catalogue PACKING reference per unit
1.15 kg / 1150 g
Catalogue carton packing
12 units / 14.8 kg / 0.8 CUFT
The per-unit mass is the explicit catalogue PACKING reference, not a measured shipment weight or a carton-weight average.
Intended applications include outdoor telecommunications equipment, electronic signage and billboards, petroleum plants and mine-shaft facilities. Select the installation enclosure, wiring and protection for the actual site conditions.
Use the full model-specific mechanical drawing and the manufacturer's installation manual when selecting mounting hardware and connection materials.
Read
more
less
