Overview
The Telemecanique ZCP21D44 is a compact plastic limit switch body engineered for industrial position sensing and machinery control. This unit houses silver-plated snap-action contacts in a 1NC + 1NO configuration, designed to pair with XCKP or ZCE series actuator heads. The plastic body measures 31mm × 65mm × 30mm and connects via a Deutsch M12 connector, making it suitable for OEM equipment, retrofit applications, and machine control circuits where space and environmental protection are critical.
Key Features
- Snap-Action Contacts: Consistent, chatter-free electrical transition regardless of actuation velocity (as low as 0.01 m/s), ensuring clean signal detection for PLCs and safety relays.
- Dual-Pole Configuration: 1NO (normally open) and 1NC (normally closed) contacts allow simultaneous make-and-break logic in a single body; terminal pairs designated 13-14 (NO) and 21-22 (NC).
- Compact Plastic Design: Lightweight, corrosion-resistant housing fits tight mounting spaces without requiring metal enclosure retrofit.
- Industrial-Grade Durability: 5 million cycle mechanical life rating matches typical production equipment service intervals; IP67 protection against dust, water, and machine coolant splash.
- Silver-Plated Contacts: Reliable electrical continuity with low contact resistance; rated for 10A switching current at 300VAC (AC15 operation at 240V, 3A).
- Multi-Region Compliance: Holds UL 508, CSA C22.2 No 14, and IEC 60947-1 certifications, reducing procurement complexity for North American and European OEM integrators.
Technical Specifications
- Contact Configuration: 1NC + 1NO snap-action
- Contact Material: Silver-plated
- Rated Current (Ith): 10A
- Rated Voltage: 300VAC
- Mechanical Life: 5,000,000 cycles
- Environmental Protection: IP67 (dust and water resistant)
- Connector Type: Deutsch M12
- Housing Material: Plastic
- Dimensions: 31mm × 65mm × 30mm
- Net Weight: 0.07 kg
- Minimum Actuation Velocity: 0.01 m/s
- Certifications: UL 508, CSA C22.2 No 14, IEC 60947-1, IEC/EN 60947-5-1
Typical Applications
- Machinery Position Sensing: End-of-travel detection on CNC machines, injection molding presses, and assembly equipment.
- Safety Interlocking: Guard door and enclosure monitoring circuits interfaced with safety relays or emergency stop logic.
- Compact Panel Integration: OEM equipment where space constraints prohibit full-size switch bodies; retrofit installations in existing XCKP ecosystems.
- Production Control: Conveyor line position confirmation, material flow detection, and machine sequencing in manufacturing and packaging lines.
- Motor and Drive Interlock: Dual-contact architecture enables simultaneous enable/disable logic for variable frequency drives and motor starters.
Compatibility & Replacements
Compatible With
- XCKP series actuator heads (roller, plunger, lever)
- ZCE series actuator heads
- Schneider Electric safety relays and industrial PLCs
- Allen-Bradley and Siemens control systems (via standard 1NO/1NC logic)
- Machines and equipment designed for ZCP series limit switch bodies
- Deutsch M12 connector-based motion control circuits
Replaces / Drop-In Replacement For
- ZCP21 (original non-D variant, if M12 connector compatibility confirmed with your system)
- Telemecanique legacy plastic switch bodies with identical contact configuration and mounting footprint
- Verify compatibility with your system integrator before ordering, as physical mounting and connector type must match your existing actuator head assembly.
Works With
- Deutsch M12 5-pin and 8-pin connectors and mating cables
- Standard PLC discrete input modules (24VDC logic levels)
- Safety relays and emergency stop circuits (dual-contact architecture allows series/parallel fail-safe wiring)
- IEC 60947-5-1 compliant industrial control networks and automation platforms
- Studio 5000 (Allen-Bradley), TIA Portal (Siemens), and GX Works (Mitsubishi) via standard contact logic programming
