2TLA050204R0322 ABB LineStrong3DZ Pull-Wire Emergency Stop Stainless Steel 250 m

Why Choose the ABB LineStrong3DZ Pull-Wire Emergency Stop?

The ABB LineStrong3DZ, order code 2TLA050204R0322, is a heavy-duty dual-sided pull-wire emergency stop switch designed to provide emergency-stop access over long sections of industrial machinery. With wire entries on both sides, this model supports pull-wire protection systems extending up to 250 m, making it particularly suitable for conveyors, production lines and other elongated machine installations.

This LineStrong3DZ variant combines 4 normally closed and 4 normally open contacts with an integrated emergency-stop pushbutton and 24 V DC LED status indication. The switch uses a rugged 316 stainless-steel housing, providing excellent resistance to corrosion and supporting demanding indoor and outdoor applications where conventional painted enclosures may be unsuitable.

Three M20 conduit entries provide flexible installation options, while the double-ended pull-wire arrangement allows the switch to monitor tension from both directions. The LineStrong3DZ is engineered so that pulling the wire or loss of correct wire tension can operate the safety contacts, providing continuous emergency-stop accessibility along the protected machine area.

Key Advantages

• Up to 250 m pull-wire protection length for long machinery and conveyor installations.
• Dual-sided wire entry allows pull-wire connection from both sides of the switch.
• 4 NC + 4 NO contacts provide extensive flexibility for safety and auxiliary signalling circuits.
• Integrated emergency-stop pushbutton provides local emergency actuation at the switch.
• 24 V DC LED status indication makes switch condition easier to identify from a distance.
• Robust 316 stainless-steel housing provides excellent corrosion resistance.
• 3 × M20 conduit entries provide flexible cable-entry arrangements for industrial installations.

Key Features

• ABB LineStrong3DZ pull-wire emergency stop switch.
• ABB order code 2TLA050204R0322.
• Double-sided pull-wire operation.
• Supports pull-wire systems up to 250 m in length.
• 4 NC + 4 NO contact configuration.
• Integrated emergency-stop pushbutton.
• Integrated LED status indication.
• 24 V DC LED version.
• 316 stainless-steel enclosure.
• 3 × M20 conduit entries.
• Designed for demanding industrial environments.
• Suitable for long conveyor and production-line emergency-stop systems.

Long-Distance Emergency-Stop Protection for Industrial Machinery

Pull-wire emergency-stop systems allow an operator to initiate an emergency stop from virtually any point along a correctly installed grab wire rather than having to reach a single fixed emergency-stop button. This makes them particularly valuable on conveyors, transfer systems and long production machinery where personnel may need emergency-stop access across an extended working area.

The LineStrong3DZ 2TLA050204R0322 accepts pull wires from both sides and is designed for installations extending up to 250 m. When correctly tensioned and reset, the normally closed safety circuits are maintained; operation of the wire or a loss of correct wire tension can cause the safety contacts to change state. The complete pull-wire system must be installed, tensioned and validated in accordance with ABB instructions, the machine risk assessment and applicable machinery safety standards.

Typical Applications

• Long industrial conveyor systems.
• Material-handling and transfer lines.
• Automated production lines.
• Food and beverage processing machinery.
• Mining and bulk-material handling equipment.
• Packaging and distribution systems.
• Outdoor and washdown-prone machinery requiring stainless-steel equipment.
• Industrial installations requiring continuous emergency-stop access along an extended machine area.