
Siemens Industrial Controls 3RA2921-1AA00 Link Module
The Siemens 3RA2921-1AA00 Link Module provides a direct mechanical and electrical connection between SIRIUS 3RT20 contactors and 3RV20 motor starter protectors. Engineered for S0 contactors with screw terminals, this link module eliminates the need for manual wiring in the main circuit, reducing potential failure points and installation time. The unit is designed for load feeders requiring a rigid, vibration-resistant bridge that maintains electrical continuity under high-duty cycles. By utilizing this mechanical link module, technicians ensure precise alignment within the SIRIUS modular system, facilitating compact control cabinet layouts while meeting strict industrial control standards. This direct link module is essential for contractors building fuseless load feeders where phase-to-phase spacing and thermal stability are critical parameters for system reliability.
Key Benefits
- Streamlines motor starter assembly by replacing discrete wiring with a rigid electrical bridge.
- Optimized for Size S0 components using standard screw terminal connections for high torque retention.
- Enhances cabinet density by reducing the physical footprint of integrated motor control assemblies.
- Provides a secure, vibration-proof interface between 3RT2 contactors and 3RV2 circuit breakers.
Common Questions
Is this link module compatible with S00 frame sizes?
No, the 3RA2921-1AA00 is specifically designed for Size S0 components. For S00 frames, a different module in the 3RA series is required to match the narrower terminal spacing.
Can this be used with spring-loaded terminals?
This specific model is engineered for screw terminal connections. Using this with spring-type terminals will result in a physical mismatch; always verify your contactor's termination type before installation.
Does this module support electrical interlocking?
This module provides the main circuit connection. If auxiliary signaling or electrical interlocking is required, additional SIRIUS auxiliary contacts must be integrated into the stack.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $14.62
-65%$14.62
$5.12Siemens Industrial Controls 3RA2921-1AA00 Link Module
The Siemens 3RA2921-1AA00 Link Module provides a direct mechanical and electrical connection between SIRIUS 3RT20 contactors and 3RV20 motor starter protectors. Engineered for S0 contactors with screw terminals, this link module eliminates the need for manual wiring in the main circuit, reducing potential failure points and installation time. The unit is designed for load feeders requiring a rigid, vibration-resistant bridge that maintains electrical continuity under high-duty cycles. By utilizing this mechanical link module, technicians ensure precise alignment within the SIRIUS modular system, facilitating compact control cabinet layouts while meeting strict industrial control standards. This direct link module is essential for contractors building fuseless load feeders where phase-to-phase spacing and thermal stability are critical parameters for system reliability.
Key Benefits
- Streamlines motor starter assembly by replacing discrete wiring with a rigid electrical bridge.
- Optimized for Size S0 components using standard screw terminal connections for high torque retention.
- Enhances cabinet density by reducing the physical footprint of integrated motor control assemblies.
- Provides a secure, vibration-proof interface between 3RT2 contactors and 3RV2 circuit breakers.
Common Questions
Is this link module compatible with S00 frame sizes?
No, the 3RA2921-1AA00 is specifically designed for Size S0 components. For S00 frames, a different module in the 3RA series is required to match the narrower terminal spacing.
Can this be used with spring-loaded terminals?
This specific model is engineered for screw terminal connections. Using this with spring-type terminals will result in a physical mismatch; always verify your contactor's termination type before installation.
Does this module support electrical interlocking?
This module provides the main circuit connection. If auxiliary signaling or electrical interlocking is required, additional SIRIUS auxiliary contacts must be integrated into the stack.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Siemens 3RA2921-1AA00 Link Module provides a direct mechanical and electrical connection between SIRIUS 3RT20 contactors and 3RV20 motor starter protectors. Engineered for S0 contactors with screw terminals, this link module eliminates the need for manual wiring in the main circuit, reducing potential failure points and installation time. The unit is designed for load feeders requiring a rigid, vibration-resistant bridge that maintains electrical continuity under high-duty cycles. By utilizing this mechanical link module, technicians ensure precise alignment within the SIRIUS modular system, facilitating compact control cabinet layouts while meeting strict industrial control standards. This direct link module is essential for contractors building fuseless load feeders where phase-to-phase spacing and thermal stability are critical parameters for system reliability.
Key Benefits
- Streamlines motor starter assembly by replacing discrete wiring with a rigid electrical bridge.
- Optimized for Size S0 components using standard screw terminal connections for high torque retention.
- Enhances cabinet density by reducing the physical footprint of integrated motor control assemblies.
- Provides a secure, vibration-proof interface between 3RT2 contactors and 3RV2 circuit breakers.
Common Questions
Is this link module compatible with S00 frame sizes?
No, the 3RA2921-1AA00 is specifically designed for Size S0 components. For S00 frames, a different module in the 3RA series is required to match the narrower terminal spacing.
Can this be used with spring-loaded terminals?
This specific model is engineered for screw terminal connections. Using this with spring-type terminals will result in a physical mismatch; always verify your contactor's termination type before installation.
Does this module support electrical interlocking?
This module provides the main circuit connection. If auxiliary signaling or electrical interlocking is required, additional SIRIUS auxiliary contacts must be integrated into the stack.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












