The IS-CP4A-PT and IS-CP4B-PT push button, tool resettable, manual call points are approved for Zones 0, 1, 2, 21 & 22 requiring intrinsically safe equipment for the control of fire and gas alarm systems. Available with and without monitoring resistors all versions are certified to ATEX and IECEx standards.
The push-button mechanism is protected by a spring-loaded cover therefore the switch requires a two-action activation. The push-button is user-resettable via the use of the special key supplied with the unit. The IS-CP4 range features enclosures manufactured from corrosion proof, marine-grade, copper-free LM6 (A413) aluminium which is phosphated and powder coated.