Overview
The Telemecanique ZCKL1 is a rugged metal limit switch body designed for industrial control applications. Part of the OsiSense XC Standard product line, this fixed-type switch integrates 1 normally open (NO) + 1 normally closed (NC) snap-action contact pair, making it suitable for two-wire safety circuits and monitoring applications. The body is pre-assembled with screw-clamp terminals and includes a PG 13.5 cable gland for quick integration into control panels and machinery.
Key Features
- Snap-action contact mechanism — reliable, positive switching action for critical automation tasks
- 1NO + 1NC contact configuration — doubles circuit flexibility without additional hardware
- Silver-plated contacts — superior conductivity and resistance to corrosion and arcing
- IP65 ingress protection — sealed against dust and low-pressure water jets
- Screw-clamp terminal blocks — supports wire gauges from 0.34 to 1.5 mm²
- PG 13.5 cable gland included — M20 equivalent for standard industrial cable entries
Technical Specifications
The ZCKL1 is engineered for reliable operation in harsh factory environments:
- Rated Current: 10 A maximum at 240V AC
- Rated Voltage: 240V AC maximum
- Operating Temperature: −25 °C to +70 °C
- Ingress Protection (IP): IP65 (dust-tight, water-jet resistant)
- Contact Type: 1 NC + 1 NO snap action
- Contact Material: Silver-plated contacts
- Electrical Connection: Screw-clamp terminals
- Cable Gland: PG 13.5 (M20 × 1.5 tapped entry)
- Housing Material: Metal (Zamak or equivalent)
- Mounting Type: Fixed base plate
Typical Applications
- Machine position sensing — detecting presence/absence on conveyors, assembly lines, and packaging equipment
- Safety interlocks — guarding access gates, hinged covers, and emergency stop circuits
- Lift and hoist monitoring — confirming end-of-travel positions on overhead cranes and platform elevators
- Hydraulic/pneumatic valve control — triggering pressure-relief or direction-control sequences
- Two-wire safety loops — Series circuits with dual-contact redundancy for safety-rated systems
Compatibility & Replacements
Compatible With
- XCKL series limit switch actuator heads
- ZCKD series actuator heads (dual-pole operation)
- OsiSense XC Standard range accessories
- Standard M20 cable glands and connector systems
- Industrial control panels and PLC input modules (24 VDC or 240V AC coil circuits)
Replaces / Drop-In Replacement For
- ZCK-L1 (alternate designation)
- ZCKL (base model number without type suffix)
- Legacy Telemecanique limit switch bodies using PG 13.5 entry (verify mounting and actuator compatibility)
Works With
- Standard industrial actuator systems (lever arms, rotary knobs, roller/plunger heads)
- Screw-clamp wiring terminals compatible with AWG 22–16 and IEC 0.34–1.5 mm² conductor sizes
- 24 VDC and 240V AC control circuits
- NFPA 79, IEC 60204-1, and EN 61508 compliant safety-rated applications (when used with appropriate actuators and configurations)
