Cranford Controls

IS Push Button Call Point

Product Overview

The IS-CP4A-PB and IS-CP4B-PB push button 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.

Features

The push button mechanism is protected by a spring loaded cover therefore the switch requires a two-action activation. The product is user resettable by rotating the push button. The IS-CP4 range features enclosures manufactured from corrosion proof, marine grade, copper free LM6 (A413) aluminium which is phosphated and powder coated.

Technical

IS-CP4A-PB II 1G Ex ia IIC T6 Ga
II 2D Ex t IIIC T60°C Db
IP66
IS-CP4B-PB II 1G Ex ia IIC T4 Ga
II 2D Ex t IIIC T70°C Db
IP66
Ambient Ta = -40°C to +55°C
Ingress protection IP66
Housing material Marine grade copper free LM6
Aluminium
Housing finish Phosphated & powder coated finish:
anti-corrosion
Colour RAL3000 Red
(others available on request)
Cable entries 2 x M20 clearance top and
1 x M20 clearance side.
Back box can be rotated to give
2 x bottom and 1 x side entries
Stopping plugs 2 x nylon plugs as standard
Brass and stainless steel
plugs optional
Terminals 6 x 4.0mm² cables

Part Numbers

308-052 IS-CP4B-PB push button, red