MEAN WELL HEP-600C-12 is a fanless three-stage battery charger with factory settings of 14.4 V boost, 13.6 V float and 35 A charging current. Its silicone-potted aluminum case supports demanding environments; confirm the battery profile and apply the input, temperature and altitude derating limits.
Product Datasheet
Download MEAN WELL HEP-600C Datasheet (PDF)
The HEP-600C section is on PDF pages 1, 2, 3, 4. Refer to the complete mechanical drawings and notes when planning installation.
Model and Battery Selection
| Complete model |
HEP-600C-12 |
| Series / function |
HEP-600C / three-stage AC/DC battery charger |
| Model voltage code |
12 V |
| Standard battery type |
Open and sealed lead-acid batteries |
| Recommended battery capacity |
135–400 Ah |
HEP identifies the series, 600 is the family power designation and C identifies a battery charger. The final voltage code identifies the model; use the boost and float settings below when selecting the battery.
The recommended capacity is a MEAN WELL guideline. Confirm the battery manufacturer’s permitted maximum charging current before choosing the battery or adjusting the charger.
The series lists flooded, Gel and AGM lead-acid batteries and Li-ion batteries, including lithium iron and lithium manganese types. Different battery specifications may require charger modifications; consult the battery supplier and MEAN WELL before using a chemistry or charging profile outside the standard lead-acid settings.
Charging Output and Adjustment
| Default boost charge voltage |
14.4 V |
| Default float charge voltage |
13.6 V |
| Rated charging current |
35 A |
| Voltage adjustment range |
11.5–15.1 V |
| Current adjustment range |
17.5–35 A |
| Charging sequence |
Constant current → constant voltage → float |
| Three-colour LED |
Red: first charging stage; yellow: constant-voltage stage; green: float stage |
The factory charging curve starts with a 35 A constant-current setting, reaches the 14.4 V boost setting and then changes to 13.6 V float charging as current tapers.
The charging diagram marks 100%, 50% and 10% current, with 50% at the red/yellow division and 10% at the float transition. These current markers are not battery state-of-charge percentages or specified charging times.
Adjust output voltage and constant-current level using the internal Vo ADJ and Io ADJ potentiometers, accessible by removing the rubber stopper on the case. Set them to the battery manufacturer’s requirements and remain within this model’s adjustment ranges.
Input and Electrical Performance
| AC input range |
90–264 VAC |
| AC operational limit |
277 VAC |
| DC input range |
128–370 VDC |
| DC operational limit |
390 VDC |
| Input frequency |
47–63 Hz |
| Typical efficiency |
93.5% |
| Active PFC / typical power factor |
PF >0.98 at 115 VAC; >0.95 at 230 VAC; >0.93 at 277 VAC, full load |
| Typical AC current |
7 A at 115 VAC; 3.3 A at 230 VAC; 2.9 A at 277 VAC |
| Typical cold-start inrush |
70 A at 230 VAC; pulse width 1010 µs measured at 50% of peak current |
| Leakage current |
<0.75 mA at 277 VAC |
| No-load consumption at remote OFF |
<0.5 W |
Use the input-voltage and temperature derating curves together. The 277 VAC and 390 VDC values are operational limits, separately identified from the normal input ranges.
Unless otherwise stated, the specification measurements use 230 VAC input, rated load and 25°C ambient temperature.
Remote Control, Standby and Protection
| Remote ON |
Open circuit, or a high control level >2 V to 5 V |
| Remote OFF |
Short circuit, or a low control level from 0 V to 0.5 V |
| Standby output |
5 V / 0.5 A |
| Standby tolerance / ripple |
±5%; 100 mVp-p maximum |
| Overvoltage protection range |
16.5–20.5 V |
| Overvoltage recovery |
Output shutdown; reapply input power to recover |
| Overtemperature recovery |
Output shutdown; reapply input power to recover |
| Short-circuit protection |
Provided |
Use the RC+ and RC−/GND terminals for remote control. The +5VSB standby connection is separate from the main battery-charging output; observe its 0.5 A rating.
Cooling, Environment and Derating
| Cooling / enclosure |
Fanless free-air convection; aluminum case fully potted with silicone |
| Working ambient temperature |
−40 to +70°C |
| Working humidity |
20–95% RH, non-condensing |
| Storage temperature / humidity |
−40 to +85°C; 10–95% RH, non-condensing |
| Temperature coefficient |
±0.05%/°C from 0 to 60°C |
| Operating altitude |
Up to 5000 m, subject to altitude derating |
| Vibration test |
20–500 Hz, 10 G; 10 minutes per cycle; 72 minutes on each X, Y and Z axis |
For horizontal installation, the thermal curve permits 100% load from −40°C through 55°C, then reduces to 60% at 70°C. The upper operating temperature does not imply full-load operation.
At 60 Hz, the static input curve shows 80% load at 90 VAC, rising to 100% at 115 VAC and remaining at 100% through the 277 VAC operational endpoint.
Above 2000 m, reduce the permitted ambient temperature by 3.5°C per additional 1000 m for this fanless model.
The silicone-potted aluminum construction is described as waterproof and intended for high-vibration, dusty, humid and oily environments. Select the installation and terminal protection to suit the actual environment.
Dimensions, Mounting and Connections
| Body dimensions (L × W × H) |
280 × 144 × 48.5 mm |
| Case / drawing tolerance |
228A / ±1 mm |
| Mounting-hole layout |
Four Ø6 mm locations; centre spans 268.6 mm × 113 mm |
| Terminal projections |
21 mm maximum at each end, as shown in the side view |
| AC input terminal 1 |
FG |
| AC input terminal 2 |
AC/L |
| AC input terminal 3 |
AC/N |
| DC terminal 1 |
RC+ |
| DC terminal 2 |
RC− and GND |
| DC terminal 3 |
+5VSB |
| DC terminals 4 and 5 |
−V |
| DC terminals 6 and 7 |
+V |
Use the numbered terminal tables and the mechanical drawing to orient the wiring, including protective earth at FG and the correct battery-output polarity. Allow for the terminal projections and adjustment access when choosing the mounting space.
The drawing identifies the Tcase measuring point and the Vo ADJ / Io ADJ access locations. Follow the complete drawing for the mounting outline and measuring-point position.
Safety, EMC and Reliability
| Safety approvals |
UL62368-1; TUV BS EN/EN62368-1; EAC TP TC 004 |
| Dielectric withstand |
Input–output: 3.75 kVAC; input–FG: 2 kVAC; output–FG: 1.5 kVAC |
| Insulation resistance |
100 MΩ at 500 VDC, 25°C and 70% RH; input–output, input–FG and output–FG |
| EMC emissions |
BS EN/EN55032 (CISPR32), radiated Class A / conducted Class B; BS EN/EN61000-3-2/-3; EAC TP TC 020 |
| EMC immunity |
BS EN/EN61000-4-2/-3/-4/-5/-6/-8/-11; BS EN/EN55024, light industry level; EAC TP TC 020 |
| Minimum MTBF |
857.2 thousand hours, Telcordia SR-332 (Bellcore); 73.1 thousand hours, MIL-HDBK-217F at 25°C |
The charger is a component for installation in end equipment. EMC tests were performed with the unit mounted on a 360 × 360 mm metal plate, 1 mm thick; the completed equipment must be checked again for EMC compliance.
Application and Supply Reference
| Catalogue packing reference per unit |
3900 g |
| Catalogue carton reference |
4 units / 16 kg / 0.9 CUFT |
| Manufacturer warranty reference |
Six years, as listed in the datasheet; applicable manufacturer terms apply |
Typical listed applications include robotic lawn mowers, electronic transportation vehicles, recreational craft, yachts and workboats, security systems, telecommunications base stations, and equipment with backup batteries.
The 3900 g value is the catalogue PACKING reference of 3.9 kg per unit, rather than an independently measured net weight or the total shipment weight.
Use installation wiring and hardware suitable for the shown terminals, mounting and operating conditions. Confirm any required cable or accessory supply separately for the ordered configuration.
