The Kobra INCH series from IDEM are tongue operated safety interlock switches that fit to the leading edge of sliding, hinged or lift off machine guards. These safety switches have positively operated switching contacts and a strong tamper resistant key mechanism designed to provide robust position interlock detection for moving guards.
Depending upon the risk assessment for the application, the Kobra INCH can be used independently to provide positively operated contacts to EN60947-5-1 or can be used in combination with any dual channel safety monitoring relays to provide up to Category 4 PLe ISO13849-1 or SIL3 EN62061. Two versions are available, the INCH-1 and INCH-3, which offer a choice of contact blocks and various actuators to aid installation and maintain durability.

Actuator profile designed to match a cam mechanism
Contact blocks can be replaced
8 actuator entry positions
Rotatable stainless steel 316 head
Plastic housing
IP67 protection

2 pole contact blocks 2NC or 1NC / 1NO
1 conduit entry point
M16 or M12 (Quick Connect) 8 way
Miniature housing: 25mm wide, 55mm long, 17mm fixing

3 pole contact blocks
3 conduit entry points
M16 or M12 (Quick Connect) 8 way
Housing: 25mm wide, 79mm long, 22mm fixing

Not supplied with an actuator. Standard, flat, and flexible actuators are available separately. The plastic flexible actuator is perfect for tight radius guards. A stainless steel guide is also available separately to assist with guard alignment.

EN1088, IEC 60947-5-1, EN60204-1, ISO 13849-1, EN62061, EN954-1, UL508.

Interlock Switch