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 Product Overview

• Model: STM1A-222B024-M
• Order Number: 095396
• Manufacturer: Euchner
• Type: Electromechanical safety switch with guard locking
• Application: Ideal for monitoring and locking safety doors or guards in industrial environments

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Technical Specifications

• Guard Locking Type: Closed-circuit current principle (guard locking by spring force; release by applying voltage)
• Solenoid Voltage: 24 V AC/DC ±10%
• Switching Elements: Slow-action switching contact with 2 NC contacts
• Actuating Head: Made of metal, adjustable in 90° steps for flexible installation
• Cable Entry: M20 x 1.5
• Auxiliary Release: Front-mounted for manual unlocking in emergencies
• Protection Rating: IP67 – dust-tight and protected against temporary immersion in water
• Operating Temperature: -20 °C to +55 °C
• Rated Insulation Voltage: 250 V
• Utilization Category:
  • AC-15: 4A / 230V
  • DC-13: 4A / 24V
• Power Consumption: 6 W
• Short Circuit Protection: 4A gG fuse (IEC 60269-1)

Special Features

• Horizontal and Vertical Approach: Suitable for various mounting orientations
• Increased Overtravel Option: Allows slight door movement after locking—useful for doors with rubber stops
• Compact Plastic Housing: Lightweight yet durable, with a metal head for added robustness