Discharge Pressure Switch and Cylinder Supervisory Switch, CP50339 & CP50138-1

The CP50339 pressure-operated switch indicates that the agent is being discharged and provides electrical contacts for alarm and auxiliary functions. It can be connected at any point of the discharge piping between the cylinder and the nozzle.

The CP50138-1 pressure supervisory switch monitors the pressure inside the clean agent cylinder. If the pressure drops below 291 ±10 psig, for example after a leak, its contacts operate and signal the release control panel.

Key features:

• CP50339: form C contacts rated 15A at 125/250V AC.
• CP50339: external manual reset button, which must be pressed after system actuation.
• CP50138-1: operates below 291 ±10 psig.
• CP50138-1: wired into a supervised circuit to give a trouble signal.
• CP50138-1: UL listed.

Typical applications:

• Discharge confirmation and cylinder pressure monitoring in HFC-227ea systems.

AZEIDK is the exclusive agent for Context Plus in Saudi Arabia and Egypt, and provides product selection, submittals and technical support.