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Interlocking is carried out by means of a latching bolt which blocks the actuator so that it cannot be withdrawn from the interlock.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.

Use this solenoid interlock switch actuator from Schmersal to lock sliding guard door mechanisms. The ball latch system protects against incorrect locking to ensure optimal performance. The actuator has a light weight of just 25g to ensure minimal strain on your equipment. This unit is designed for use with safety switches in the AZM 161 series, making it simple to assemble a complete safety system.

• High clamping force of 2000N to ensure a secure hold
• Manual release option for convenience and safety in the event of an operational failure
• Minimum actuating radius of 150mm for precise control
• Compact dimensions of 56 (length) x 28.5 (width) x 32.7mm (height) for installation in tight spaces

• Industrial automation
• Conveyors

Ball latches use a spring-loaded ball that's located inside a cylinder attached to a flange. A catch is sunken within the door or guard device, and a striker plate is installed into the jamb. These components lock together to ensure a strong hold.