PB251A-12CM-H Powerbox PB251A-CM Battery Charger System - Black 13.8 V DC 20 A 275 W Heatsink
The PB251A-12CM-H is a Powerbox PB251A-CM Series battery charger system with a 13.8 V DC output, 20 A total current, 4 A battery current and 275 W output power. It is DC UPS connectable and supports constant float voltage, current limiting, an independent battery charging output, natural convection cooling and the Option H supplementary heatsink configuration.
Designed for backed-up DC power applications, this black battery charger system provides DC OK and Battery OK alarm relay functions, battery connected testing, low-voltage disconnect and auto-resetting protection for overload and short-circuit conditions. A supplied 2 metre IEC mains cord with Australian plug, pluggable screw terminal blocks and voltage-free changeover relay contacts support practical installation and monitored power status signalling.
Key Features
- DC UPS connectable design supports battery-backed power arrangements for critical low-voltage equipment.
- Controlled float charging helps maintain stable output while managing current to the load and battery circuits.
- Relay-based status signalling gives connected systems a clear way to respond to supply or battery faults.
- Low-voltage disconnect helps protect battery-backed operation by isolating the load at adjustable thresholds.
- Supplementary heatsink configuration supports fan-free cooling in installations using the higher-output 12 V model.
- Catalogue Family:
- POWER SUPPLY
- Power AC/DC:
- Dual Voltage AC/DC
- Power Amps:
- 20 Amps
- Power Volts:
- 13.8V
- Product Type:
- Power Supply
- Type of Device:
- Power Supply
- Output Amps:
- 20A
- Output Voltage Range:
- 13.8 VDC