The EX-AZM161 is a solenoid interlock switch designed for explosives atmospheres. It will ensure that sliding, hinged and removable guarding devices cannot be opened until hazardous conditions have come to an end (when used in combination with the control elements of a machine, e.g. fail-safe standstill monitors or fail-safe delay timers). They are also used for cases in which the opening of a guarding device represents a non-permissible intrusion in a production process.
The switching element with interlock on the EX-AZM161 is not physically connected to the actuator but functionally brought together or separated on switching. When the guard device is opened in the uninterlocked condition, the actuator is separated from the base unit. In the process, NC contacts are positively opened and NO contacts closed.
Interlocking is carried out by means of a latching bolt which blocks the actuator so that it cannot be withdrawn from the interlock. The machine control circuit is only enabled when the actuator has been fed into the interlock and the latching bolt is in the blocking position. This is ensured by contact monitoring of the latching bolt.

6 Contacts
130 x 114 x 30 mm
Large wiring compartment
Clamping force 2000N
Manual release
Interlock with protection against incorrect locking
High holding force
Long life
Double-insulated
Ex-certified screwed cable gland
Ex certified, EX II 3D Ex tc IIIC T80°C Dc X
4 cable entries M 16 x 1.5

Stock no. 880-1854 is a straight actuator
Stock no. 880-1858 is an actuator with magnetic latch
Stock no. 880-1867 is an actuator with ball latch
Stock no. 880-1860 is an actuator with centring guide, 150mm
Stock no. 880-1864 is an actuator with centring guide, 95mm

Actuators must be ordered separately.

EN ISO 13849-1, EN 60079-0, EN 60079-31, EN 60947-5-1, BG-GS-ET-19.

ATEX.

Improve workplace safety with this robust solenoid interlock switch from Schmersal. This sensor is suitable for use on sliding, hinged and removable guards to ensure that they can't be opened until hazardous conditions have ended. It's made of a thermoplastic material that offers excellent durability and wear resistance, so it won't break under pressure. It's also double-insulated to protect you from electric shocks. As it weighs just 470g, this component won't add additional strain on your equipment.

• ATEX (ATmosphères EXplosibles) approved for safe use in potentially explosive environments
• IP67 (ingress protection) rating means it's protected against dust and immersion in up to 1m of water for 30 minutes
• Large wiring compartment for easy cable entry and exit
• Silver contacts for high levels of conductivity and a reliable connection
• Strong clamping force of 2000N for a tamper-proof lock on guard doors

• Wood workshops
• Chemical processing plants
• Paint manufacturing facilities

This switch is self-extinguishing, so it will resist the spread of flames in the event of a fire for greater workplace safety.