55 A motor switching — what the ratings mean for fit
The A30-30-10-51: Rated 55 A at 480 V 60 Hz and 400–415 V 50 Hz, this non-reversing contactor handles across-the-line motor starting for three-phase loads up to that current. The 480V AC coil matches 480 V control circuits directly — no dropping resistor or transformer needed. The single NO auxiliary contact provides one feedback or interlock signal; if your circuit needs more than one auxiliary, plan for a side-mount auxiliary block.
End-of-life sourcing — what eol_hot means for procurement
Sourcing runs through independent surplus and broker channels. Availability is lot-specific; quantities and pricing are confirmed at RFQ, not held in stocking inventory.
Panel integration — DIN rail and wiring
The A30-30-10-51 mounts on standard DIN rail in a control panel. The 3-pole power circuit and coil terminals accept lug or ring-tongue terminations for the motor and control wiring.