Overview
The Schmersal TQ441-01/01YUR-M20 is a safety cable pull switch manufactured by Schmersal, a leading German provider of industrial safety switches and sensors. This model features a rugged metal enclosure rated IP65 and is designed for hazardous and demanding industrial environments where reliable emergency shutdown capability is critical. The switch supports cable pull operation up to 25 meters, making it ideal for extended machinery safeguarding applications.
Key Features
- Safety-Rated Design: 1 NC contact for pull wire with 1 NC contact for wire breakage and overlapping contacts
- Extended Cable Length: One-side operation with wire up to 25 m long
- Robust Enclosure: Metal enclosure with IP65 rating for outdoor and washdown environments
- Latching Operation: Latching design with push button reset
- M20 Connector: M20 cable entry for standard industrial wiring
Technical Specifications
- Electrical Rating: 380VAC 10A
- Enclosure Protection: IP65
- Cable Pull Distance: Up to 25 meters
- Contact Type: 1 NC (normally closed) for pull wire + 1 NC for wire breakage
- Operation: One-side operation with latching and manual reset
- Weight: 1.89 lbs (approx. 0.86 kg)
- Connector: M20 threaded connection
Typical Applications
The TQ441-01/01YUR-M20 is commonly deployed in:
- Heavy machinery and large industrial equipment emergency stop systems
- Material handling conveyor systems and belt drives
- Outdoor manufacturing and processing plants
- Hazardous area applications requiring redundant safety contacts
- Production lines where personnel safety is critical
Compatibility & Replacements
Compatible With
- Industrial PLC emergency stop circuits (24VDC to 380VAC)
- Safety relays and safety controllers
- Standard machinery control systems requiring hardwired emergency shutdown
- IP65-rated industrial enclosures and outdoor installations
Replaces / Drop-In Replacement For
- Factory part number 101160100
- Earlier TQ441 series variants with similar M20 connectors
Works With
- Standard industrial safety relay circuits (IEC 61508-compliant)
- Machinery safety control systems (ISO 13849-1)
- Emergency stop circuits per ISO 13850
- M20 cable glands and connectors
