Description

The ADCB 24VDC 4A Fire Alarm PSU is a robust, surface-mounted switchmode power supply unit designed for demanding fire safety applications. Delivering a consistent 24–26VDC regulated output, it’s ideal for powering fire alarm components, electromagnetic door retainers, and access control systems where battery backup is not required.

Crafted from durable mild steel and finished with a clean white powder coat, this compact unit is built to withstand daily use in both commercial and residential environments. It includes dual input options for external voltage or volt-free triggers, ensuring compatibility with a wide range of fire systems.

Equipped with status LED indicators for output, fault, and mains conditions, the PSU enables fast diagnostics and system checks. Short-circuit protection, fused output, and back EMF protection provide added reliability and safety during critical operations.

Key Features:

• 24VDC 4A regulated output with full load capability
• Surface mount metal enclosure (200 x 200 x 65 mm)
• Switchmode technology for energy-efficient performance
• Dual inputs: external voltage or volt-free contact
• LED indicators: Output, fault, and mains status
• Back EMF & short-circuit protection built in
• Fused output and multiple cable entry points
• No battery backup required – ideal for hold-open door systems

This 4A fire-rated PSU is the perfect solution for installers and safety professionals looking to power electromagnetic locks, alarm sounders, or other 24V accessories with confidence and simplicity—without the complexity of battery backup systems.