3RT2045-3KB40
The Siemens 3RT2045-3KB40 is a size S3, 3-pole contactor from the SIRIUS 3RT2 series. It has an AC-3 rated current of 80A and a power of 37kW (400V), a control voltage of 24VDC, and is equipped with 1NO+1NC auxiliary contacts and spring terminals.
Product Positioning
The Siemens 3RT2045-3KB40 power contactor is a SIRIUS 3RT2 series Size S3, 3-pole design, AC-3 rated current 80A, 37kW (400V), suitable for general motor starting and switching control. The Siemens 3RT2045-3KB40 controls at 24VDC, is equipped with 1NO+1NC auxiliary contacts, uses spring-loaded (cage clamp) terminal connections, and has a built-in surge suppressor.
Core Product Advantages and Features
Size S3 standard contactor
AC-3 rated current 80A, 37kW (400V), suitable for general motor starting and switching.
24VDC control voltage
It features 1 NO+1 NC auxiliary contacts, a built-in surge suppressor, and complete control feedback.
Spring-loaded terminal design
Screwless, quick-connect wiring, suitable for long-term stable use in vibrating environments.
Excellent mechanical life
Typical mechanical life reaches 10 million operating cycles, stable and reliable.
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