Overview
The Telemecanique ZCK-D21 is an interchangeable plunger head component designed for the XCK-L and XCK-M limit switch bodies. This ZCK-D21 actuator head provides direct mechanical actuation and is commonly paired with Telemecanique snap-action switch bodies to create complete position-sensing assemblies used throughout manufacturing and process control applications.
Key Features
- Plunger-Type Actuator — Direct-action design for positive mechanical switching
- IP66 Rated — Sealed enclosure provides protection in wet/dusty industrial environments
- Snap-Action Operation — Reliable snap-action contact closure with positive opening point
- Compact Metal Housing — Zamak body construction for durability in harsh conditions
- Standard M6 Mounting Spindle — Compatible with XCK-L and XCK-M base units
Technical Specifications
The ZCK-D21 head is engineered to European IEC 60947-5-1 standards and is typically configured with 1NO + 1NC contact output:
- Rated Insulation Voltage (Ui): 500V AC
- Rated Contact Current (Ac15): 10A at 240V
- Protection Class: IP66
- Operating Temperature Range: −25 to +70°C
- Contact Configuration: 1NO + 1NC (snap-action)
- Mounting: M6 threaded spindle, Pg 11 cable gland entries
- Dimensions (Typical): 64 × 30 × 115 mm
- Weight: ~0.305 kg
- Standards Compliance: IEC 947-5-1 / EN 60947-5-1
Typical Applications
- Machine Tool Automation — End-of-stroke sensing for conveyor belts and positioning tables
- Safety Interlocks — Door and guard closure confirmation in industrial machinery
- Process Control — Level, position, or travel limit detection in manufacturing equipment
- Packaging & Material Handling — Presence/absence sensing for automated systems
- Maintenance & Retrofit — Drop-in replacement for worn or damaged plunger heads on existing XCK bodies
Compatibility & Replacements
Compatible With
- Telemecanique XCK-L limit switch bodies
- Telemecanique XCK-M limit switch bodies
- XCK-L and XCK-M snap-action switch assemblies
- OsiSense XC Classic series switches (Schneider Electric)
- Industrial control panels using IEC 60947-5-1 compliant position switches
Replaces / Drop-In Replacement For
- Original Telemecanique ZCK-D21 plunger heads
- OsiSense XC variant ZCK-D21 components
- Verify assembly configuration before ordering to ensure contact arrangement matches your circuit requirements.
Works With
- Telemecanique XCK-M1, XCK-L1 base units (and variants)
- Pg 11 cable gland connections
- IP66-rated industrial enclosures
- 500V AC rated control circuits
- Snap-action contact switching systems (IEC 947-5-1 compliant)
