Siemens SIRIUS 3RA2921-2AA00 Link Module S0 Spring-Type for 3RV2.21, 3RT2.2 Contactors Original Brand New

Overview: Quick and Reliable Motor Feeder Assembly

The Siemens SIRIUS 3RA2921-2AA00 Link Module is a crucial accessory designed for the efficient, tool-free assembly of fuseless motor feeders using components from the SIRIUS modular system. This spring-type link module provides both the electrical and mechanical connection between a Siemens 3RV2.21 Motor Starter Protector/Circuit Breaker (size S0) and a 3RT2.2 Contactor (size S0). It simplifies wiring, ensures a secure, vibration-proof connection, and significantly reduces installation time and potential wiring errors.

Key Benefit

• Rapid & Error-Free Assembly: Integrates the circuit breaker and contactor instantly, drastically reducing manual wiring effort and minimizing the chance of incorrect connections.
• Spring-Type Terminal Technology: Utilizes spring-type (spring-loaded) terminals for a fast, maintenance-free, and robust connection that is highly resistant to vibration and shock.
• Optimized for SIRIUS S0 Components: Specifically designed for perfect electrical and mechanical compatibility with Siemens 3RV2.21 and 3RT2.2 components (both size S0).
• Space-Saving Design: Enables a compact load feeder assembly, optimizing panel space in control cabinets.
• High Reliability: As part of the SIRIUS modular system, it ensures maximum contact reliability and operational safety in industrial environments.
• Universal Actuating Voltage: Suitable for contactor actuating voltages that are both AC and DC.

Function

1. Mechanical Coupling: Securely and physically connects a 3RV2.21 (S0) motor starter protector to a 3RT2.2 (S0) power contactor, aligning the devices for direct mounting.
2. Electrical Interconnection: Establishes the primary power circuit connection (3-pole) between the output of the circuit breaker and the main terminals of the contactor using reliable spring-type terminals.
3. Simplified Load Feeder Creation: Facilitates the quick setup of a standardized fuseless load feeder for motor starting applications (e.g., Direct-On-Line starters).

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