3RA1962-2F

Description

Overview

The Siemens 3RA1962-2F is a precision-engineered base plate designed to simplify and secure the mounting of a three-contactor combination (3 × 3RT1.6) specifically for star-delta (wye-delta) motor starter applications. It supports size S10-S10-S10 contactor modules, enabling consistent alignment, secure installation, and optimized wiring layout for industrial motor control panels.

Key Features / Benefit

• Streamlined Installation & Savings: Pre-configured for three contactors (3× 3RT1.6) significantly reduces assembly time and wiring complexity compared to ad-hoc mounting.

• Precise Alignment & Robust Mounting: The base plate ensures accurate spacing and correct positioning of the contactors in the star-delta configuration, improving reliability of interlocks and connections.

• Optimised Panel Space: Designed for S10 size modular contactors, the 3RA1962-2F supports efficient use of panel real estate and helps maintain a neat layout in low-voltage switchgear assemblies.

• System Compatibility: Part of the Siemens SIRIUS system – compatible with Siemens contactors, star-delta modules, mechanical interlocks and accessories, ensuring full integration and high-quality industrial performance.

• Durable German Build: Manufactured in Germany, certified for low-voltage switchgear usage, and meets relevant ETIM / eClass classifications for accessories/spare parts in motor control gear.

Function / Application

This base plate serves as the mechanical foundation for assembling a star-delta (wye-delta) starter for motors, by allowing three suitably rated contactors (3RT1.6 series) to be mounted in the correct arrangement (Line contactor, Delta contactor, Star contactor). The plate supports seamless integration with other star-delta components such as jumpers, mechanical interlocks, and timing relays.
Typical use-case: In a control panel you have a three-phase motor which requires a star-delta start to reduce starting current. The 3RA1962-2F becomes the mounting base, ensuring correct geometry and supporting wiring layout of the three contactors in one compact module.

Technical Specification

• Product number: 3RA1962-2F

• Compatible with: Three Siemens 3RT1.6 contactors (size S10) for star-delta start up

• Size group: S10-S10-S10 (Up to ~250 kW typical for that modular size)

• Net weight: Approx. 3.392 kg as per manufacturer data

• Country of origin: Germany

• Classification: Accessories / Spare parts for low-voltage switch technology (ETIM EC002498)

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