What it is and where it goes
The ABB 2TLA050200R0030 is a LineStrong1 pull-wire emergency stop switch designed for guarding long conveyor lines, transfer stations, or any hazard zone where a rope-pull trip is the most practical way to stop equipment from multiple access points. The die-cast painted yellow enclosure carries an IP67 rating, so it handles washdown environments and outdoor installations without additional sealing.
Key ratings and what they mean for fit
Wire span up to 50 m means a single switch can protect a run of that length — common for conveyor belts, transfer decks, or gantry travel paths. The IEC/EN60947-5-1 double break Type Zb contacts with silver contact material give you a positively driven normally closed circuit that opens on wire pull or break, which is the standard safety architecture for emergency stop circuits. Three M20 x 1.5 conduit entries provide gland flexibility for incoming and outgoing cables without needing an extra junction box.