KM Safety Interlock Switch, Die Cast Metal, 3NC/1NO

  • RS Stock No. 826-3915
  • Mfr. Part No. 203007F
  • Manufacturer IDEM
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

IDEM Kobra Metal Safety Interlock Switches

The Kobra KM 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 KM 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. A choice of contact blocks and various actuators are available to aid installation and maintain durability.

Positive break contacts to IEC 60947-5-1
High functional safety to ISO 13849-1
Contact blocks can be replaced
8 actuator entry positions
Rotatable heads have dual actuator entry
Robust diecast aluminium housing
3 or 4 pole contact blocks 2NC / 1NO or 3NC / 1NO
1 conduit entry point M20
Industry standard - 30mm fixing centres
Housing: 40 x 118 x 43.5mm


826-3915 is supplied with a flat actuator, 826-3912 is supplied without an actuator. Standard, flat, plastic flexible, heavy duty flexible and hygienic actuators are available separately. The flexible actuators are perfect for tight radius guards. The hygienic actuator is made from stainless steel with a mirror polished finish.


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


CE, cULus, TUV.

Interlock Switch

Attribute Value
Connection Type M20
Lock Style Key
Normal State Configuration 3NC/1NO
Housing Material Die Cast Metal
Maximum AC Voltage 240V
Safety Contacts 3NC
Range Kobra
Actuator Included Yes
Number of Head Directions 4
Series KM
Auxiliary Contacts 1NO
Length 118mm
IP Rating IP67
Maximum Current 10 A
Minimum Operating Temperature -25°C
Dimensions 118 x 40 x 43.5 mm
Maximum Operating Temperature +80°C
Width 40mm
Depth 43.5mm
2 In stock for delivery within 5 working day(s)
Price (ex. GST) Each
$ 104.26
(exc. GST)
$ 119.90
(inc. GST)
Per unit
1 +
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