Purchase now: Schmersal 101154221 AZ 16 Safety Interlock
Purchase now: Atlantech Drives provides you the Schmersal 101154221 (Model: AZ 16-12ZVRK-M16), the robust and globally proven Safety Switch with Separate Actuator. This specific version is engineered with a **30 N Latching Force** («R»), designed to hold safety guards closed against vibration or draft, preventing nuisance machine stops. It features **M16 cable entries**, making it the standard replacement for legacy installations in European machinery.
Technical Specifications and Reliability
The AZ 16 series is housed in a glass-fiber reinforced thermoplastic enclosure, offering **IP 67** protection. The «12Z» configuration indicates **1 NO (Signaling) and 2 NC (Safety)** contacts with positive break operation. The individual coding of the actuator key prevents simple tampering. Unlike magnetic switches, the AZ 16 provides a physical interlock verification, ensuring the guard is mechanically engaged before the machine can run.
- Part Number: 101154221.
- Model: AZ 16-12ZVRK-M16.
- Latching Force: 30 N.
- Contacts: 1 NO / 2 NC.
- Cable Entry: 3 x M16 x 1.5.
- Actuator: Separate (Not included).
- Housing: Thermoplastic, self-extinguishing.
- Service Life: > 1,000,000 operations.
Expert Installation Advice: Preventing «Key Snap»
The number one failure mode is broken actuator keys. Expert Tip: This usually happens when the door sags over time. The AZ 16 allows for some tolerance, but the «funnel» on the head is not infinite. We strictly recommend using the **sz adjustment tool** during installation to center the actuator perfectly. If your door has a small radius (less than 400mm), do NOT use the standard straight actuator; you must use the **flexible actuator (B6)** to prevent side-loading the switch head.
Frequently Asked Questions (FAQs)
Q: Can I rotate the head?
A: Yes, the actuating head can be unscrewed and rotated in 4 x 90-degree steps, allowing for actuation from the top, bottom, front, or rear.
Q: What is the difference between M16 and M20 versions?
A: Only the thread size of the cable gland. This model (101154221) uses M16. If you try to force an M20 gland in, you will crack the housing.
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