Siemens PSC-12 FireFinder Power Supply

Siemens PSC-12 FireFinder Power Supply

$2,650.00

The Siemens PSC-12 is a 12A, 24VDC power supply and battery charger for fire alarm systems. With universal AC input from 120VAC to 240VAC at 50/60 Hz, the unit delivers filtered, regulated DC power and supports up to 100AH backup batteries.

SKU: 500-033340 PSC-12 Category: Brand:

Description

  • Universal AC Input: Accepts 120VAC to 240VAC at 50/60 Hz.
  • Integrated Battery Charger: Supports standby batteries up to 100AH capacity.
  • Dual DC Outputs: Provides 12A internal and 4A external outputs.
  • Relay Monitoring: Includes four Form C relays rated at 2A.
  • Ground-Fault Detection: Monitors circuit integrity for system protection.

Documentation

Technical Specifications

Manufacturer Siemens
Part Number 500-033340 PSC-12
Type Power Supply
Output 12A @ 24VDC (non-power-limited, internal)
4A @ 24VDC (power-limited, external)
Input 120–240VAC, 50/60 Hz (universal)
Common Relays 2 (Alarm/Trouble), Form C, 2A rated
Programmable Relays 2, Form C, 2A rated
Battery Capacity Up to 100AH

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Description

The Siemens PSC-12 is a 24VDC power supply and battery charger designed for fire alarm and life safety systems. It delivers 12A of filtered, regulated DC output from a universal 120–240VAC input and includes a built-in charger supporting up to 100AH standby batteries to maintain code-required backup power capacity.

It uses an off-line, switch-mode power converter to produce filtered and regulated 24VDC, with a 4A power-limited output for external devices and a 12A non-power-limited output for internal system use. Common Alarm and Trouble relays plus two programmable relays provide Form C contacts rated at 2A, and ground-fault detection circuitry is included.

Frequently Asked Questions

What systems is the Siemens PSC-12 designed for?

It is designed for fire alarm and life safety systems requiring a UL 864-listed main power supply with integrated battery charging.

Can the Siemens PSC-12 be expanded with additional power supplies?

Yes, up to three PSX-12 power supply extenders can connect to a single PSC-12, and both units share common batteries.

What relay outputs does the Siemens PSC-12 provide?

It provides two common relays (Alarm and Trouble) and two programmable relays, all Form C contacts rated at 2A.

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