Explosion Proof Trapped Key Control Isolation Switch (M-ISB-CB-EX)

The M-ISB-CB-EX is the first stage in the Trapped Key Process and can be mounted externally. Turning the key opens the safety contacts, turning the CONTROL CIRCUIT OFF, allowing the key to be removed and transferred to the next stage in your Trapped Key System.

Body Material: Mirror Polished Die-Cast Metal
Ingress Protection: IP67
Contacts: 2-Pole or 4-Pole Ex Rated Contact Blocks
Zones: 1, 21, 2, 22
Ex Marking: Exd IIC T6 (-20 ≤ Ta ≤ +60C) Gb / Ex tb IIIC T85C (-20 ≤ Ta ≤ +60C) Db

Part Number	Part Description
M-ISB-CB-11-EX	Control Switch Box 1NC 1NO EX with 3m Pre-wired Die Cast
M-ISB-CB-20-EX	Control Switch Box 2NC EX with 3m Pre-wired Die Cast
M-ISB-CB-20-EX-15M	Control Switch Box 2NC EX with **15m Pre-wired Die Cast
M-ISB-CB-22-EX	Control Switch Box 2NC 2NO EX with 3m Pre-wired Die Cast

Important Note
Comes with 3m of pre-wired cable (longer available on request).
Key sold separately.

Technical Data
Approvals	IECEx, cULus on LS-Ex Internal Contact Block
Technology	Trapped Key Control Switch
Housing Material	Die-Cast Aluminum
Operating Temperature	-25 ... +80 °C
Enclosure Protection	IP67
Mechanical Life (B10d)	1,000,000 cycles
Switching frequency (LS-Ex)	1.0 Hz maximum
Mechanical Life Expectancy (LS-Ex)	1,000,000 switches
Electrical Life Expectancy (LS-Ex)	Tested to 1,000,000 cycles at 24V. 0.2A