POTTER CSS-25

Product Overview

The CoilKeeper Supervisory Switch (CSS) is designed to monitor the position and status of solenoid coils in preaction and deluge fire protection systems in accordance with National Fire Protection Association NFPA 13 requirements. It electronically verifies coil installation on the valve stem and activates supervisory dry contacts if the coil is removed. Integrated LEDs provide clear local indication of coil status, maintenance condition, and releasing circuit activity, helping prevent accidental system activation.

Key Features

• Supervises coil position on preaction and deluge system solenoids
• LED indicators for real-time coil and circuit status
• Detects open and shorted coil conditions
• Flexible mounting: local at the solenoid or remote installation
• Visual indication of coil presence and releasing circuit state