Siemens 3RA2933‑2BB2 Spring‑Type Wiring Kit, Electrical, Mechanical for Star‑Delta S2/S2/S2 Original Brand New

Overview

The Siemens 3RA2933‑2BB2 is a precision‑engineered wiring kit designed for reliable connection and interlocking in star‑delta (wye‑delta) starter configurations sized S2/S2/S2. It features spring‑type terminals and supports both electrical and mechanical wiring functions, making it an ideal accessory for industrial motor starter assemblies.

Key Benefit

• Efficient installation: Spring‑type connectors simplify wiring and help reduce installation time.

• Dual functionality: Supports both electrical wiring and mechanical interlock in one kit.

• Optimised for star‑delta (wye‑delta) starters: Specifically designed for use in S2 size starter combinations (S2/S2/S2) helping to ensure compatibility and safety.

• Reliable brand quality: Manufactured by Siemens as part of the SIRIUS modular system — trusted in industrial automation environments.

• Compact & lightweight: With a net weight of approximately 0.18 kg and compact packaging, it’s easy to handle and install.

Functions & Features

• Spring‑type terminal connection for faster, vibration‑resistant wiring.

• Includes mechanical interlock for correct star‑delta switching and safe operation.

• Designed specifically for star‑delta (wye‑delta) starter size S2/S2/S2.

• Suitable for use in industrial control panels and motor starter assemblies where star‑delta switching is required.

• Complies with Siemens standards and integrates seamlessly with the SIRIUS modular system for contactors and motor starters.

Application

• Ideal for automation and control systems using star‑delta (wye‑delta) motor starter circuits.

• Suitable for plants and machinery requiring reliable star‑delta switching for large motors.

• Perfect replacement or upgrade for existing S2/S2/S2 starters in industrial installations.

Technical Specification

• Article number: 3RA2933‑2BB2

• Weight: ~0.18 kg

• Accessory for star‑delta configuration (S2/S2/S2)

• Brand: Siemens (SIRIUS system)

• Origin: Germany

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