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.
Alternative housing colours are available to meet specific requirements
DIN rail mounted terminal blocks: 8 x 2.5mm²
Metalised Polyester “Duty” label
Series and/or End of Line resistors
IEC 60079-0:2007 Ed 5
IECEx SIR 09.0122X
IEC 60079-0:2007-10 Edition: 5
IEC 60079-11:2006 Edition: 5
IEC 60079-26:2006 Edition: 2
IEC 61241-1:2004 Edition: 1