2TLA050206R0332 ABB LineStrong3L Pull-Wire Emergency Stop Switch 125 m

Why Choose the ABB LineStrong3L Pull-Wire Emergency Stop Switch?

The ABB LineStrong3L is a heavy-duty pull-wire emergency stop safety switch designed to provide emergency-stop access along extended sections of industrial machinery, conveyors and production lines. Supplied under ABB order code 2TLA050206R0332, this left-hand LineStrong3 configuration supports pull-wire installations with a span of up to 125 m.

Unlike a conventional emergency-stop button that can only be operated at its mounting position, the LineStrong3L enables an emergency stop to be initiated by pulling the tensioned safety wire from accessible positions along the protected machinery. The switch incorporates 4 NC + 2 NO contacts, an integral emergency-stop button and 24 V DC LED status indication for comprehensive machine safety integration.

The LineStrong3L uses a robust yellow die-cast housing with an IP67 enclosure rating for demanding industrial environments. The safety mechanism monitors the pull-wire tension and is designed to trip if the wire is pulled or loses its correct tension, helping provide dependable emergency-stop coverage across long machine installations.

Key Advantages

• Provides accessible pull-wire emergency stopping across spans up to 125 m.
• Left-hand switch configuration for installation at the appropriate end of the protected wire run.
• 4 NC + 2 NO contacts provide flexible safety and auxiliary signalling options.
• Integral emergency-stop pushbutton provides local operation directly at the switch.
• Built-in 24 V DC LED provides clear status indication.
• Monitors wire tension so operation can occur when the wire is pulled or tension is lost.
• Durable yellow die-cast enclosure provides high visibility and industrial robustness.
• Safety architecture can support up to PL e / Category 4 and SIL 3 when correctly integrated.

Key Features

• ABB LineStrong3L emergency-stop grab-wire safety switch.
• Left-hand pull-wire configuration.
• Wire span up to 125 m.
• 4 normally closed + 2 normally open contacts.
• Integrated emergency-stop button.
• Integrated 24 V DC LED status indication.
• Positive mechanical monitoring of the tensioned safety wire.
• IEC/EN 60947-5-1 double-break, type Zb snap-action contacts.
• Silver contact material.
• IP67 enclosure protection.
• Yellow painted die-cast enclosure.
• Suitable for mounting in any orientation.
• Designed for PVC-sheathed steel safety wire with 4 mm outside diameter.

Reliable Emergency-Stop Protection Along Extended Machinery

The ABB LineStrong3L is designed for machinery where emergency-stop access is required across a long operating area rather than at isolated pushbutton locations. A correctly tensioned steel safety wire runs along the protected section, allowing personnel to actuate the safety switch by pulling the wire from an accessible point along the installation. Loss of the required wire tension can also operate the switch, helping detect conditions such as a broken or disconnected pull wire.

For long conveyors and production lines, the ability to provide continuous emergency-stop access can simplify operator protection compared with installing numerous individual emergency-stop stations. The LineStrong3L combines this long-span pull-wire function with an integral emergency-stop button, LED indication and multiple safety and auxiliary contacts in a rugged industrial enclosure.

Typical Applications

• Long conveyor systems and conveyor galleries.
• Material handling and bulk handling equipment.
• Automated manufacturing and assembly lines.
• Packaging and processing machinery.
• Warehousing and distribution conveyor systems.
• Food and beverage production equipment.
• Industrial production lines requiring extended emergency-stop access.
• Machinery where operators require emergency-stop capability along a long working area.