Overview
The Siemens 3SE5112-0CC02 is a mechanical position limit switch from the SIRIUS 3SE5 industrial controls range. Designed for machinery safety and precise positioning in industrial automation systems, this unit combines robust snap-action contact design with reliable overtravel capability. The long pin plunger configuration allows versatile mounting and actuation across various industrial applications, from motion control to machine guarding.
Key Features
- Snap-Action Contacts: 1 NO + 1 NC (normally open/normally closed) quick-break contacts for dependable switching action
- Long Pin Plunger Actuator: Provides extended reach and flexible positioning for machinery mounting
- Metal Enclosure: 40 mm wide durable metal body ensures protection in harsh industrial environments
- Rated Insulation Voltage: 400 V rated for industrial AC power systems
- Certified Protection: IP66/IP67 rated enclosure protects against dust and water ingress
- M20 × 1.5 Cable Gland: Standard industrial entry for wire routing and termination
Technical Specifications
The unit meets IEC 60947-5-1 snap-action switch standards and EN 50041 position switch mounting and operating points. Snap-action contacts deliver rapid, consistent response critical for safety circuits and motion control feedback.
Typical Applications
- Position detection and limit switching in industrial machinery
- Safety circuits and emergency stop logic
- Gate, door, and guard position sensing
- Conveyor and material handling systems
- Press and stamping machine overtravel protection
- Machine tool position feedback and interlocks
Compatibility & Replacements
Compatible With
- Siemens SIRIUS 3SE5 standard mounting rails and fixtures
- Industrial control systems requiring IEC 60947-5-1 compliant limit switches
- 24 VDC to 400 VAC control circuits
- M20 × 1.5 cable gland industrial wiring installations
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 3SE5112-0CC02 is a specific SIRIUS 3SE5 variant; related models in the series include 3SE5112-0CD02 (roller plunger alternative) and other 3SE5 base switch configurations with different actuator types.
Works With
- Siemens S7 PLCs and industrial control systems
- Standard industrial 24 VDC and AC control networks
- IEC 60947-5-1 compliant safety and automation circuits
- Snap-action switch logic in motion control and machine guarding systems






















