2TLA050208R0322 ABB LineStrong3RZ 4NC/2NO M20 Emergency Stop LED Stainless Steel Grab Wire Safety Switch

Why Choose the ABB LineStrong3RZ Emergency Stop Grab Wire Safety Switch?

The ABB LineStrong3RZ (2TLA050208R0322) is a heavy-duty emergency stop grab wire safety switch designed for safeguarding long sections of industrial machinery where an emergency stop must be accessible along the operating area. A correctly tensioned safety rope allows an operator to initiate an emergency stop from any accessible point along the rope rather than having to reach a single fixed pushbutton.

This LineStrong3RZ version features a robust 316 stainless-steel housing, a 4NC + 2NO contact configuration, an integrated emergency-stop pushbutton and 24 V DC LED status indication. It is the right-hand switch configuration and supports grab-wire installations with a rope length of up to 125 m, making it particularly suitable for conveyors and other extended machinery.

Three M20 conduit entries provide flexible field wiring, while the rope-switch mechanism monitors correct cable tension as part of the installation. The normally closed safety circuits are closed when the system is correctly tensioned and the switch has been reset, providing a practical solution for emergency-stop systems in demanding industrial environments.

Key Advantages

• Provides emergency-stop access along extended machinery using a grab-wire system.
• Supports safety-rope installations up to 125 m long.
• Durable 316 stainless-steel housing for demanding industrial environments.
• 4NC + 2NO contacts provide multiple switching circuits.
• Integrated emergency-stop pushbutton provides an additional local stop point.
• 24 V DC LED status indication assists visual monitoring and diagnostics.
• Right-hand rope-switch configuration for appropriate end-of-line installation.
• Three M20 conduit entries provide flexible cable routing.
• Monitors correct grab-wire tension as part of the safety system.

Key Features

• ABB LineStrong3RZ emergency stop grab wire safety switch.
• ABB order code 2TLA050208R0322.
• Right-hand switch arrangement.
• 4 normally closed + 2 normally open contacts.
• Integrated emergency-stop pushbutton.
• Integrated LED status indication.
• LED supply voltage: 24 V DC.
• Maximum grab-wire length: 125 m.
• 316 stainless-steel enclosure.
• 3 × M20 conduit entries.
• Manual reset after actuation.
• Designed for long conveyor and machine-guarding applications.

Reliable Emergency-Stop Coverage Along Extended Machinery

The LineStrong3RZ provides an effective way to make an emergency-stop command accessible along long machinery such as conveyor systems. With the safety rope correctly installed and tensioned, the switch's normally closed circuits remain closed during normal operation. Operation of the grab wire changes the safety contact state so that the connected safety control system can initiate the required stopping function.

This model combines the grab-wire function with a local emergency-stop pushbutton and LED indication. Its 316 stainless-steel enclosure provides a durable mechanical platform for demanding installations, while the right-hand configuration and capability for rope runs up to 125 m make it particularly useful at the end of long conveyor or production-line safety systems.

Typical Applications

• Long industrial conveyor systems.
• Material handling and bulk handling equipment.
• Packaging and processing production lines.
• Automated manufacturing machinery.
• Warehousing and distribution conveyor systems.
• Food, beverage and process machinery requiring stainless-steel equipment.
• Extended machinery requiring accessible emergency-stop coverage.