Product Description:

The pull-wire emergency stop switches of the ZLM, ZLS, and ZL2S series are specifically designed to secure extensive machinery and systems that cannot be protected by safety doors. The emergency stop signal can be triggered from any point along the wire, with a highly visible LED indicating the switch status. Additional emergency stop buttons can be optionally mounted on either side of the switch.

These switches ensure safety by monitoring wire breakage and slack wire conditions and feature manual locking in the off position. Stainless steel versions with IP69K protection are available for demanding environments.

Key Features:

• Emergency stop functionality along the entire wire length
• Slack wire and wire break monitoring
• Locking in off position, reset only possible via reset button
• Highly visible LED indicating wire status (pulled, slack, correct tension)
• Maximum wire lengths:
- ZLM / ZLMS: up to 30 m
- ZLS: up to 60 m
- ZLSE: up to 80 m
- ZL2S: up to 100 m on each side

• Durable metal housing (IP67) or stainless steel housing (IP69K)
• Safety contact configuration: 3 safety-opening, 1 closing
• Safety level: Up to PL e, Cat. 4, SILCL 3 as per DIN EN 13949-1 and ISO 62061

Technical Data:

• Actuation force: < 125 N
• Maximum pull length: Up to 300 mm
• Protection rating: IP67 (metal housing) / IP69K (stainless steel housing)
• Mounting: 2 or 4 M5 screws (torque 4 Nm)
• Connection options: Optional emergency stop button mountable on both sides
• Recommended accessories: ZTK / ZTKE wire tensioning system for proper tension adjustment
• Temperature dependency: Max. wire length dependent on thermal elongation
• Applications: Conveyor belts, machining centers, packaging machines

Installation and Usage:

• Mount using 2-4 M5 screws, tighten cable connections to 1.5 Nm.
• Guide wire through eye bolts every 3 m, with an additional eye bolt 500 mm before each switch.
• Adjust wire tension so that green arrows are visible in the center position.
• Conduct functionality tests before electrical commissioning, verifying actuation and reset.

Additional Notes:

• For wire lengths up to 30 m (ZLM / ZLMS), 60 m (ZLS), 80 m (ZLSE), or 100 m (ZL2S), a tension spring can be used instead of a second switch.
• Wire pulleys must be mounted to ensure full accessibility of the wire length.

Included Items:

• 1x Pull-wire emergency stop switch (model: ZLM, ZLS, ZL2S, ZLMS, ZLSE, or ZL2SE)
• Installation manual