Purchase now: Schmersal 101211071 MZM 100 B Solenoid Interlock
Purchase now: Atlantech Drives provides you the Schmersal 101211071 (Model: MZM 100 B ST2-1P2PW2REM-A), a revolutionary Solenoid Interlock that uses an Electromagnetic Locking Principle. Unlike traditional interlocks (like the AZM 161) that use a mechanical pin to lock the door, the MZM 100 uses a powerful electromagnet to hold the guard closed with **500 N force**. This means there are **no moving parts** to wear out, break, or gather dust, making it the ultimate solution for high-hygiene industries (Food & Pharma) and high-cycle packaging machines.
Technical Specifications and «Pulse Echo» Safety
The MZM 100 B utilizes Schmersal’s patented **Pulse Echo** technology to monitor the door status contactless-ly. It achieves **PLe / SIL 3** safety ratings. The «ST2» code indicates an **M12 8-pole connector**, and the «REM» signifies electrically adjustable latching force. The device is purely electronic, providing intelligent diagnostic outputs («D») to the PLC to report if the door is open, closed, or locked, but without the mechanical wear of a tongue key.
- Part Number: 101211071.
- Model: MZM 100 B ST2-1P2PW2REM-A.
- Locking Principle: Electromagnetic (Power to Lock).
- Holding Force: 500 N.
- Latching Force: 30…100 N (Adjustable).
- Safety Level: PLe / Cat 4 / SIL 3.
- Connection: M12 Connector, 8-pole.
- Housing: Thermoplastic, smooth hygienic design.
- Misalignment Tolerance: High (Non-contact).
Expert Installation Advice: The «Air Gap» is Critical
Since this is an electromagnet, surface contact is vital for full holding force. Expert Tip: The actuator (MZM 100-B1) must make full, flat contact with the switch face to achieve the 500N holding force. If there is an angular misalignment or a gap of even 1mm, the holding force drops drastically. However, the safety function (detecting open door) works even with a gap. Ensure the door is rigid enough not to peel away from the magnet.
Frequently Asked Questions (FAQs)
Q: Is this suitable for «Run-Down» protection?
A: Yes, but be aware it is typically **Power to Lock**. If power fails, the door unlocks. For dangerous inertia machines requiring strict «Unlock only when safe» even during blackouts, a mechanical bistable lock might be preferred, though the MZM is accepted in many applications with UPS backup.
Q: Can I wash it down?
A: Yes, the design is smooth with no cavities for bacteria to hide, but avoid high-pressure jets directly into the connector if it’s not IP69K rated cable.
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