Siemens 3RT1045-1AP60 Contactor S3 80A

Product Description

The SIEMENS 3RT1045-1AP60 is a Size S3 definite-purpose AC contactor rated for 80 amps. It is designed for switching three-phase motor loads and power circuits in industrial and commercial electrical systems. The S3 frame size places it in the medium-duty range, suitable for motor starters, panel assemblies, and load-control applications where reliable switching under load is required. Licensed electricians and industrial maintenance technicians are the primary installers of this device. The 80A rating supports a broad range of motor control and load-switching tasks.

This contactor is suited for motor control center (MCC) panels, industrial automation enclosures, and commercial HVAC equipment requiring three-phase power switching. It fits into both new panel builds and replacement applications where an existing S3-frame contactor has reached end of service life. The compact footprint of the S3 frame keeps installation straightforward in space-constrained enclosures.

Key Features

• 80A continuous current rating for medium-duty motor and load switching
• S3 frame size for standardized panel and MCC installation
• Compact dimensions support installation in tight enclosures
• SIEMENS 3RT1 series construction built to IEC contactor standards

Compatibility

Designed as an OEM-style replacement for IEC S3-frame contactors in industrial motor control and power-switching applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local electrical codes. De-energize and lock out the panel or motor control circuit before removing the existing contactor or installing this unit. Verify coil voltage matches the control circuit voltage before energizing. Confirm load-side wiring torque requirements per the terminal markings on the device.

Technical Specifications

• Current Rating: 80 amps
• Frame Size: S3
• Length: 6.34 inches
• Width: 3.15 inches
• Height: 6.58 inches
• Weight: 4.2 pounds
• UPC: 75455441129

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RT1045-1AP60