The Powerbox PBB2S MK II Series DC-UPS Battery Charger is purpose-built for security and access control systems, delivering reliable DC power and uninterrupted battery backup for critical security equipment. Engineered for high efficiency and field-proven reliability, the PBB2S MK II Series is a direct replacement for the original PBB2S models - offering full backward compatibility for existing installations by maintaining the same electrical performance, mechanical footprint, and mounting points.
Now certified to the updated AS/NZS 61558.2.16 safety standard for general use, the PBB2S MK II Series meets the latest regulatory requirements for safe and compliant operation in commercial and industrial environments. It is fully compliant with AS/NZS 62368.1 and CISPR 32 Class B EMC standards and is officially registered and approved under the EESS (Electrical Equipment Safety System) - Registration number: E2025004894.
The PBB2S series is for indoor use only.
Key Features:
- 13.8Vdc 3.25A.
- Supports both 12V and 24V battery systems.
- Separate, current-limited battery charging outputs.
- Universal AC input range from 115Vac to 240Vac nominal without power derating.
- Overcurrent, short-circuit, and overvoltage protection with latching shutdown.
- Visual indicators and form-C relays for Mains/DC OK, Battery OK, and Battery Fuse Fail.
- Lightweight, corrosion-resistant aluminium enclosure with natural convection cooling.
- Self-resetting battery fuse and integrated overtemperature protection.
- Green Mains/DC OK LED and form-C alarm contact.
- Green Battery OK LED and form-C alarm contact.
- Red Battery Fuse Fail LED.