
![]() |
Charlotte Stonestreet
Managing Editor |
Home> | MACHINE BUILDING & ENGINEERING | >Machinery Safety | >Solenoid interlock even more versatile |
Solenoid interlock even more versatile
28 April 2025
THANKS TO to new accessories, Schmersal's AZM150 slim-line solenoid interlock is suitable for an even wider range of applications. As a complete system, it also offers a very cost-effective safety solution

One new accessory is the rear-mounted push button, which can be used for emergency release or emergency unlocking. Emergency release makes it possible to leave the area of danger from the inside if a guard door has been closed inadvertently. Emergency unlocking enables the guard door to be opened from the outside. The push button is available in two different versions: the 45 mm version for use with door pillar thicknesses of 40mm, for example, where the MP-AZM150-1 mounting plate can be used for mounting, and the 170 mm version for use with door pillar thicknesses up to 170mm.
Another new accessory for the AZM150 is the Bowden cable release with an overall length of 6 metres, which enables remote unlocking in an inaccessible interlock installation situation. This provides a safeguard in particular hazardous situations. Should an operator inadvertently become locked inside a system, a Bowden cable can be used as an emergency release. When working outside the danger zone, the Bowden cable serves as an emergency release.
An advantage of the AZM150 interlock is the rotating actuator head, which is locked by simply putting the cover in place instead of a screw connection. The 360°-rotating actuator head, with its two actuator entrances, enables different mounting positions and approach options. This feature also decisively contributes to the versatility of the AZM150, which boasts a holding force (FZh) of 1,500 N.
The AZM150 is an electromechanical solenoid interlock with a "high" coding level and therefore offers excellent protection against tampering. The advantage for the user: with high coding, fewer additional measures against tampering are required in accordance with ISO 14119, such as mounting out of reach or in a concealed position.
With the new accessories, the series is now a complete system that covers a wide range of applications up to PL d / Cat3 and is also a very cost-effective solution. In line with the motto ‘less is often more’, the AZM150 series is ideal for smaller machines and systems or for cost-sensitive applications where a low performance level is required. At the same time, the compact electromechanical solenoid interlock precisely fulfils the required safety level – at a moderate price.
- Schmersal's IIoT demonstrator at SPS 2023
- TÜV Rheinland issues first UKCA certificate to Schmersal
- Ex-proof RFID safety sensor
- Built-in SD interface
- Safety light curtains increase machine availability
- Safety light grids with Bluetooth interface
- Schmersal founds subsidiary in Japan
- New generation position switches
- Schmersal launches two new safety modules
- Modular switchgear for heavy industry