The Schneider Electric LA1LB019 is an auxiliary contact block with 1 normally-open and 2 normally-closed contacts, terminated via screw-clamp terminals. It belongs to the Motor Control Accessories category and is designed to mount alongside a contactor or motor starter to add signal feedback or interlocking contacts for the control circuit.
Lifecycle status and sourcing reality
For a BOM line that still calls out this exact order code, the only channel is independent surplus or broker inventory. Quantities are confirmed at RFQ; no official successor order code is recorded, so a pin-compatible drop-in from the same manufacturer is not guaranteed.
What the contact configuration means for fit
The 1 NO + 2 NC arrangement provides one make contact for signalling (e.g., to a PLC input or a status lamp) and two break contacts for interlocking or safety isolation of the control power.