Simplex 4081-9004

The Simplex 4081-9004 is a 6.8k ohm, 1/2 watt end-of-line resistor harness used to supervise normally-open contact initiating and monitoring circuits on Simplex fire alarm systems. It terminates the circuit so the panel can detect an open or shorted wiring fault at the last device on the loop.

Key Features

• Pre-wired harness for fast field installation at the last device on a circuit
• Provides normally-open contact supervision for circuit integrity monitoring
• Compact, low-cost component for Simplex 4081-series initiating circuits

Technical Specifications

• Resistance: 6.8k ohms
• Power Rating: 1/2 watt
• Application: End-of-line supervision, normally-open contact circuits
• Related family: 4081-9003 (4.7k ohm), 4081-9005 (1.8k ohm)