This document introduces the features and characteristics of System Sensor intelligent relay and isolator bases. These bases are designed for use with 200 and 500 Series plug-in detectors. The complete line of relay and isolator bases is designed for reduced installation costs and optimum performance.
The System Sensor intelligent relay and isolator bases are designed for use with 200 and 500 Series plug‑in detectors. They feature easy plug‑in of detector heads, terminal block wiring, rugged industrial construction, and options for surface or electrical box mounting. Relay bases provide Form C contacts for auxiliary control, while isolator bases offer short‑circuit isolation and automatic restoration, suitable for NFPA 72 Style 7 applications.
Key specifications include a 6.2" (157 mm) diameter, 5.76 oz weight, operating voltage of 15‑32 VDC, Form C contact type, minimum set time of 4 seconds, and minimum reset time of 1 second. Electrical ratings cover standby current, coil type, and load capabilities for resistive, inductive, AC, and DC loads.
| Diameter | 6.2" (157 mm) |
|---|---|
| Weight | 5.76 oz |
| Operating Voltage | 15 to 32 VDC |
| Contact Type | Form C |
| Set Time | 4 seconds minimum |
| Reset Time | 1 second minimum |
They are designed for use with 200 and 500 Series plug‑in detectors.
They isolate short circuits and automatically restore operation when the short is corrected, and are suitable for NFPA 72 Style 7 applications.
The relay bases operate from 15 to 32 VDC.
It uses a Form C contact for control of auxiliary functions.