What this LA9G3QA switch module is and what it's rated for
The headline numbers for fit: 330 A in AC-1 duty (resistive loads) and 225 A in AC-3 (motor switching) at 40°C ambient. Those are the operational current ratings that decide whether this chassis handles your motor or heater bank. Pollution degree 3 means it's built for the conductive dust and humidity you'd find in an industrial panel, not a clean room. It's rated for use up to 3000 m altitude without derating, and to 5000 m with a factor.
Sourcing posture: why this part earns an RFQ
The LA9G3QA covers 3 poles per kit. No cross-reference data is available; use the exact order code.
Lot view: what you're actually getting
Open the box and you get three pole modules with bolted connection terminals — no contactor body, no coil, just the power-pole assemblies. The kit is a single package (one unit in the box). If you're buying a liquidation lot or sorting a manifest, know that each LA9G3QA set builds one 3-pole switch. It's not a full contactor; it's the current-carrying core for a modular stack. The value's in the pairings: match it with a TeSys D or F coil and arc chute, and you've got a fast-replacement assembly.