Cranford Controls

IS Break Glass Call Point

Product Overview

The IS-CP4A-BG and IS-CP4B-BG break glass 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 IS-CP4 range features enclosures manufactured from corrosion proof, marine grade, copper free LM6 (A413)
aluminium which is phosphated and powder coated.


IS-CP4A-BG II 1G Ex ia IIC T6 Ga
II 2D Ex t IIIC T60°C Db
IS-CP4B-BG II 1G Ex ia IIC T4 Ga
II 2D Ex t IIIC T70°C Db
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
Terminals 6 x 4.0mm² cables

Part Numbers

Part number available on request