Siemens Sirius 3RT1045-1AP00 three‑pole power contactor, AC‑3 80 A / 37 kW at 400 V with 230 V AC 50 Hz coil, in good working used condition.
Brand: Siemens
Series: Sirius Classic 3RT1
Model: 3RT1045-1AP00 (family 3RT1045-1A..0)
Type: IEC power contactor for motor control
Main contacts: 3 NO (3-pole)
Coil voltage: 230 V AC, 50 Hz (standard for “AP00” version)
Rated operational current AC‑3: 80 A at 400 V
Rated operational power AC‑3: 37 kW at 400 V
Rated operational current AC‑1: up to 120 A at 400 V (per label: Ie AC‑1 120 A, Ui 1000 V)
Utilization categories: AC‑3 / AC‑1 according to IEC/EN 60947‑4‑1
Frame size: S3, screw terminals
Country of manufacture: Made in Germany (rear label)
For complete ratings (breaking capacities, wiring diagrams, etc.), please refer to the Siemens 3RT1045‑1AP00 datasheet.
Used, good working condition removed from service.
Casing and front show normal cosmetic wear, light scratches and dust; terminals have typical installation marks but no apparent damage or overheating.
Contactor operates smoothly when manually actuated; coil energized successfully during a basic functional check (no load switching test).
Suitable for controlling large three‑phase motors and other loads up to 37 kW at 400 V when used with appropriate overload relay and short‑circuit protection in line with Siemens recommendations.
Supplied as a bare contactor only, without auxiliary blocks or original packaging; accessories like overload relays or replacement coils are available separately if required.
