PB251A-12CM-H

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.