2TLA050202R0322 ABB LineStrong2Z Pull-Wire Emergency Stop Switch

Why Choose the ABB LineStrong2Z 2TLA050202R0322 Pull-Wire Emergency Stop Switch?

The ABB LineStrong2Z 2TLA050202R0322 is a heavy-duty pull-wire emergency stop safety switch designed to provide emergency-stop access along extended sections of machinery, conveyors and production lines. As part of the ABB Sensors/Switches product group, it combines rope-operated emergency stopping with an integral emergency-stop pushbutton and LED status indication.

This LineStrong2Z variant features a robust 316 stainless steel housing, 2NC + 2NO contacts, 24 V DC LED indication and three M20 conduit entries. It can monitor a pull-wire span of up to 100 m, making it particularly suitable for long machinery where emergency-stop access is required at multiple points along the operating area.

The LineStrong principle monitors the tension of the safety rope as well as intentional pulling of the wire. When correctly installed and reset, the normally closed safety circuits are closed while the rope is correctly tensioned; pulling the rope or causing a significant loss of tension operates the switch. The integrated emergency-stop pushbutton provides an additional local means of initiating the emergency-stop function.

Key Advantages

• Pull-wire emergency stopping over distances up to 100 m.
• 316 stainless steel housing for demanding industrial environments.
• 2NC + 2NO contact configuration for safety and auxiliary signalling functions.
• Integrated emergency-stop pushbutton provides local emergency actuation at the switch.
• Integrated 24 V DC LED status indication.
• Monitors both pulling and loss of rope tension when correctly installed.
• Three M20 conduit entries provide flexible field-wiring options.
• Can support safety architectures up to PL e / Category 4 and SIL 3 when correctly integrated.

Key Features

• ABB LineStrong2Z pull-wire emergency stop switch.
• ABB order code 2TLA050202R0322.
• 316 stainless steel construction.
• 2NC + 2NO contacts.
• Maximum pull-wire span of 100 m.
• Integrated emergency-stop pushbutton.
• Integrated LED status indication.
• 24 V DC LED version.
• 3 × M20 conduit entries.
• Rope tension monitoring for detection of pull or loss of tension.
• Manual reset following operation.
• Designed for long conveyors, production lines and extended machinery.
• Suitable for use with ABB LineStrong pull-wire accessories and tensioning components.

Pull-Wire Emergency Stop Protection for Extended Machinery

A pull-wire emergency stop system allows personnel to initiate an emergency stop from virtually any accessible point along the installed safety rope rather than having to reach a single pushbutton. This makes the ABB LineStrong2Z particularly useful on conveyors, production lines and other extended machinery where operators may be positioned a significant distance from a conventional emergency-stop station.

The safety rope is installed under the specified tension and connected to the LineStrong2Z mechanism. In the normal reset condition, the safety contacts indicate that the rope system is correctly tensioned. Pulling the rope or creating a significant loss of tension operates the mechanism and changes the safety contact state. The switch must then be manually reset after the hazardous condition has been addressed, helping prevent unintended automatic restart of the emergency-stop circuit.

Typical Applications

• Long conveyor emergency-stop systems.
• Material handling equipment.
• Automated production lines.
• Packaging and processing machinery.
• Warehouse conveyor systems.
• Bulk material handling installations.
• Assembly and manufacturing lines.
• Extended machinery requiring emergency-stop access along its length.
• Industrial environments requiring 316 stainless steel switch construction.
• Machine-safety systems requiring pull-wire operation with local emergency-stop actuation.