Box Mount Trapped Key Power Isolation Switch (M-ISB1)

The M-ISB1 is used for isolating hazardous electrical energy. Turning the key to the OFF position isolates the electrical current, allowing the key to be removed and transferred to the next stage in the Trapped Key System. The M-ISB1 is mounted into a polyester enclosure.

Die-Cast Metal Barrel and Polyester Box Enclosure
4-Pole Capable of Switching 690V at 25A or 40A
Easy to Install and Maintain

Part Number	Description	Current	Contacts	Material	Key
M-ISB1-25	ISB1 Isolation Switch Box 25A 4 Pole	25A	4-Pole	Die-Cast Barrel / Polyester Enclosure	Not Included
M-ISB1-40	ISB1 Isolation Switch Box 40A 4 Pole	40A	4-Pole	Die-Cast Barrel / Polyester Enclosure	Not Included

Note
Key sold separately

Technical Data
Enclosure Material	Polyester
Barrel Material	Die-Cast Metal
Isolator Block Specifications	See data sheet or technical drawings
Mechanical Life (B10d)	1,000,000 cycles
Ambient temperature	-20 ... +40 °C

PROCEDURE TO DIMOUNT THE COVER (ISB1 / ISB2)
ISOLATE POWER. ENSURE SWITCH IS IN THE OFF POSITION. UNSCREW THE COVER SCREWS AND REMOVE COVER. AFTER WIRING ENSURE COVER IS FITTED TO ORIGINAL POSITION. DO NOT OVERTIGHTEN THE COVER SCREWS (RECOMMENDED TORQUE 0.5Nm).