Siemens 3RT2045-1AP64 Power Contactor 80A, 37kW, 3-Pole, AC-3e/AC-3, 220–240V AC Coil, S3 Size Original Brand New

Overview

The Siemens 3RT2045-1AP64 is a high-performance three-pole power contactor engineered for reliable switching of motors and industrial loads. Designed for demanding AC-3e/AC-3 applications, this contactor delivers 80 A of operational current and supports 37 kW at 400 V, making it ideal for motor control centers, automation panels, and heavy-duty electrical systems.

With a 220 V AC 50 Hz / 240 V AC 60 Hz coil, a compact S3 size, and removable 2NO+2NC auxiliary contacts, it ensures maximum installation flexibility and operational safety. Siemens’ durable construction guarantees long service life, superior electrical performance, and dependable switching—essential for modern industrial environments.

Benefit

• High switching performance for AC-3e/AC-3 motor loads up to 37 kW

• Reliable 80 A current rating for heavy-duty industrial applications

• Versatile coil voltage (220V AC / 240V AC) suited for worldwide installations

• Enhanced safety and control with 2 NO + 2 NC removable auxiliary contacts

• Compact S3 size enabling easy integration in control panels

• Durable Siemens engineering ensuring long operational life

• Simple screw-terminal design for fast wiring and secure connections

Function

• Motor Control: Efficient switching of 3-phase motors under AC-3/AC-3e conditions

• Load Switching: Accurate switching of resistive and inductive loads

• Auxiliary signaling: Built-in 2NO + 2NC contacts support status monitoring and interlocking

• Panel Integration: Designed for MCCs, automation systems, and industrial control cabinets

• System Protection: Works with Siemens overload relays for coordinated motor protection

Technical Highlights

• Model: Siemens 3RT2045-1AP64

• Application Category: AC-3e / AC-3

• Operational Current: 80 A

• Motor Power: 37 kW at 400 V

• Poles: 3-pole

• Coil Voltage: 220 V AC 50 Hz / 240 V AC 60 Hz

• Auxiliary Contacts: 2 NO + 2 NC (removable)

• Connection Type: Screw terminals

• Size: S3

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