The MZM100 Safety switch from Schmersal has a solenoid interlock without a positive-linked mechanical locking mechanism. It uses an electromagnet to generate a 500-N holding force and then transmits the signal “interlock locked” to the safety-monitoring module. The forced-closed operating principle of the MZM100 switch offers multiple advantages. Mechanical wear becomes a thing of the past because of the absence of moving parts. The actuator and the locking mechanism are free from play and therefore neutralise undesired noises, even on machines with high vibrations. Despite the absence of play between actuator and interlock, the system tolerates large door misalignments. The smooth surfaces of actuator and interlock furthermore provide for the simplicity of cleaning.
An integrated sensor, functioning according to the patented pulse-echo operating principle from Schmersal, detects and monitors the position of the safety guard. Multiple safety switchgear can be monitored by means of one safety-monitoring module, without detriment to the safety level, saving money and clearing space in the control cabinet.
The MZM100 fulfils the requirements of control category 4 to EN 954-1 or SIL 3 to IEC 61508 and the magnetic locking principle complies, amongst others, with EN 60947-5-1.
Because of its compact size, the MZM100 can be fitted on conventional 40 mm machine profiles. It is suitable for light safety guards on packaging and wrapping machines thanks to its insensitivity to vibration, and is ideal for use in the food-processing industry because it has no surfaces, where dust and dirt can gather.

Automatic latching
Solenoid interlocks (for the protection of people) with innovating and unique operating principle
Dimensions 40 x 179 x 40 mm
Electronic contact-free, coded system
Thermoplastic enclosure
Maximum length of the sensor chain 200 m
3 LEDs to show operating conditions
Sensor technology permits an offset between actuator and interlock of ± 5 mm vertically and ± 3 mm horizontally
Intelligent diagnosis
Self-monitoring series-wiring of 31 sensors
IP67 to IEC/EN 60529

Actuator must be ordered separately, stock no. 880-1909.
Stock no. 880-1918 is a target for variable setting of L/Force.
Stock no. 880-1911 is a mounting kit (screws included).

EN ISO 13849-1, IEC 61508, IEC 60947-5-3, EN 60947-5-1.

BG, cULus.

Use this Schmersal solenoid interlock switch to keep your guard door locked when hazardous machinery is in use. As it has a maximum response time of 150ms, it quickly cuts off access to your machinery to ensure protection against injury. Thanks to its glass fibre-reinforced thermoplastic housing, it's resistant to heat and impact for use in harsh environments. The lock operates with coded electromagnetic sensors to prevent tampering.

• Supports vertical misalignments of up to 5mm and horizontal misalignments of up to 3mm for ease of installation
• High holding force of 750N to ensure guard doors remain firmly closed
• Compact dimensions of 40 (length) x 40 (width) x 179mm (depth) for installation in tight spaces
• Wide operating temperature range of -25°C to +55°C for use in harsh environments

• Packing plants
• Assembly lines
• Material handling
• Printing industry

Yes, the switch has built-in diagnostic functions for ease of monitoring. Its front plate has LED indicators that signal the switch's operational status and alert you to any errors.