Stainless Steel Magnetic Non-Contact Safety Switches for Explosive Environments
In electrical and safety engineering, hazardous locations are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapours, dust and fibres which are combustible or flammable.
IDEM’s range of explosion proof non-contact safety interlock switches have been developed to satisfy the above conditions and have been approved by IECEx to the latest ATEX standards.
The robust 316 stainless steel housings are sealed to IP67, suitable for use manufacturing environments in food, beverage and pharmaceutical industries. All IDEM explosion proof switches are fully encapsulated and include an external earthing pin.
For information on which zones these products are suitable for, please visit the catalogue or data sheet links on the individual products.
Product range features:
- Material: 316 stainless steel
- Ingress Protection: IP67 and IP69K
- Operating Temperature: -20C to 80C

Explosion Proof Non-Contact Safety Interlock Switch (CM1-Ex)
The CM1-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering.
- Housing Material: 316 Grade Stainless Steel
- Contacts: 1 N/C
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (CM2-Ex)
The CM2-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering.
- Housing Material: 316 Grade Stainless Steel
- Contacts: 1NC or 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (CM3-Ex)
The CM3-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering.
- Housing Material: 316 Grade Stainless Steel, Mirror Polished
- Contacts: 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (LM-Ex)
The LM-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering.
- Housing Material: 316 Grade Stainless Steel, Mirror Polished
- Contacts: 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (RM-Ex)
The RM-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering.
- Housing Material: 316 Grade Stainless Steel, Mirror Polished
- Housing Style: M30 Threaded Barrel
- Contacts: 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (WM1-Ex)
The WM1-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tempering. The cable is protected with a stainless steel flexible conduit.
- Housing Material: 316 Grade Stainless Steel, Mirror Polished
- Contacts: 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 0, 20, 1, 21, 2, 22
- Ex Marking: II 1G Ex ma IIC T6 Ga / II ID Ex ma IIIC T80 Da IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.

Explosion Proof Non-Contact Safety Interlock Switch (WM2-Ex)
The WM2-Ex explosion proof safety interlock switch for use in hazardous environments are designed to interlock hinged, sliding or removable guard doors or hatches. All electrical components are fully encapsulated and encased with a stainless back plate to prevent tampering.
- Housing Material: 316 Grade Stainless Steel, Mirror Polished
- Contacts: 2NC + 1NO
- Contact Rating: Up to 250V ac/dc 2.0A Max (Internally Fused)
- Zones: 1, 21, 2, 22
- Ex Marking: II 2G Ex mb IIC T6 Gb / II 2D Ex mb IIIC T80 Db IP67*
NOTE: Installation of all non-contact Ex Safety Switches must be in accordance with your machines risk assessment.