Siemens 3RA1943-2A Contactor Accessory 3RT104

Product Description

The SIEMENS 3RA1943-2A is a contactor accessory designed for use with 3RT104 series contactors. It serves as a mechanical or electrical add-on component that extends the functionality of the base contactor unit within motor control and switching applications. Licensed electricians and industrial controls technicians typically install this part as part of a motor starter or contactor assembly in commercial and industrial electrical panels. At 0.653 pounds and compact in form, it integrates directly with the compatible 3RT104 contactor frame without requiring additional hardware beyond what is supplied with the base unit.

This accessory is suited for industrial and commercial electrical installations where 3RT104 series contactors are deployed in motor control centers, disconnect assemblies, or control panel builds. It is commonly installed during new panel construction or as a replacement component during maintenance of existing contactor assemblies. Applications span HVAC equipment control, pump and fan motor starters, and general-purpose switching circuits in commercial facilities.

Key Features

• Designed specifically for direct integration with 3RT104 series contactor frames
• Compact form factor at 5.906 inches x 2.480 inches x 1.575 inches
• Lightweight at 0.653 pounds for easy handling during panel assembly
• OEM-specification accessory component for reliable fitment and performance
• Suitable for motor control and industrial switching applications

Compatibility

Designed for use with SIEMENS 3RT104 series contactors as a direct-fit accessory component.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements. De-energize and lock out the panel before beginning any contactor or accessory work. Verify that the base contactor is a compatible 3RT104 series unit before fitting this accessory. Follow the manufacturer documentation supplied with the contactor for proper accessory mounting sequence.

Technical Specifications

• Length: 5.906 inches
• Width: 2.480 inches
• Height: 1.575 inches
• Weight: 0.653 pounds
• UPC: 75455440865

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RA1943-2A