Simplex 4100-1312-RC

Simplex 4100-1312-RC Flex-50 Amplifier, 25V, 3 Class B NACs

The Simplex 4100-1312 is a Flex-50 dual-channel audio amplifier for the 4100ES/4100U emergency voice/alarm communications system, providing 50 W of power-limited 25 VRMS output for building-wide speaker notification.

Key Features:

• 50 W Dual-Channel Output: Total output of 50 W, dividable across two channels (e.g. 25 W/25 W or 10 W/40 W) as configured at the fire alarm control panel.

• Self-Backup Design: If one amplifier channel is disabled, its NACs are automatically routed to the remaining channel at full 50 W output, eliminating the need for a separate external backup amplifier.

• Three On-Board Class B Audio NACs: Each rated 2 A at 25 VRMS, individually routable to either amplifier channel.

• Power Input: Operates from 19-35 VDC supplied by a compatible Expansion Power Supply (XPS), Remote Power Supply (RPS), or System Power Supply (SPS).

• Built-In Backup Tone: An on-board 500 Hz temporal-pattern horn tone provides default signaling if the amplifier loses communication with the audio controller.

• Supervision: Continuously monitors amplifier gain by comparing output to input level; alarm current draw is 5.55 A with continuous horn tone (2.27 A average with temporal pattern) for battery backup sizing.

This is a professionally reconditioned (RC) unit, refurbished and tested prior to resale.