The Siemens Mechanical Interlock 3RA2922-2H is a genuine SIRIUS accessory specifically engineered for use with Siemens 3RT23 4-pole contactors. Designed to provide safe and dependable mechanical interlocking between contactor assemblies, this accessory prevents simultaneous activation of opposing contactors and significantly improves the safety and reliability of industrial motor control systems.
Available at SB Smart (sbsmart.in), the 3RA2922-2H Mechanical Interlock is an essential component for reversing starter applications, changeover systems, motor control panels, and automation installations where two contactors must never operate simultaneously. By physically preventing both contactors from closing at the same time, the interlock helps protect motors, electrical circuits, and industrial equipment from costly damage and operational failures.
As part of the Siemens SIRIUS contactor accessory range, the 3RA2922-2H is manufactured to meet stringent industrial quality standards, ensuring long service life, dependable operation, and seamless compatibility with Siemens contactor systems. Siemens is globally recognized for industrial automation and motor control solutions.
In industrial motor reversing applications, two contactors are commonly used to control forward and reverse motor operation. Without proper interlocking, accidental simultaneous activation can lead to severe short circuits, equipment damage, and system downtime.
The Siemens 3RA2922-2H Mechanical Interlock provides a robust safety mechanism that mechanically blocks one contactor whenever the opposing contactor is engaged. This mechanical protection works independently of electrical control circuits, offering an additional layer of safety and reliability.
Its compact design allows easy installation between compatible contactors while maintaining an organized and professional panel layout.
The Siemens 3RA2922-2H provides several operational advantages:
By incorporating a mechanical interlock into motor control circuits, engineers can improve both equipment protection and operational efficiency.
The Siemens 3RA2922-2H Mechanical Interlock is commonly used in:
Its rugged construction and precise operation make it an ideal accessory for industrial motor control and automation environments.
At SB Smart (sbsmart.in), we provide genuine Siemens industrial automation and electrical products sourced through trusted supply channels. The 3RA2922-2H Mechanical Interlock offers dependable performance, improved safety, and seamless integration with Siemens SIRIUS 3RT23 contactors.
Whether you are building a new reversing starter panel, upgrading an existing motor control system, or improving electrical safety within your automation setup, the Siemens 3RA2922-2H delivers the quality, durability, and reliability expected from Siemens industrial products.
| Specification | Details |
|---|---|
| Product Name | Mechanical Interlock |
| Manufacturer | Siemens |
| Series | SIRIUS |
| Order Code | 3RA2922-2H |
| Product Type | Contactor Accessory |
| Accessory Type | Mechanical Interlock |
| Compatible Series | Siemens 3RT23 |
| Suitable For | 4 Pole Contactors |
| Function | Mechanical Interlocking |
| Application | Reversing Starter Systems |
| Installation Type | Between Contactors |
| Mounting Method | Direct Mechanical Coupling |
| Safety Function | Prevents Simultaneous Contactor Operation |
| Mechanical Durability | High |
| Maintenance Requirement | Low |
| Industrial Application | Yes |
| Brand | Siemens |
| Condition | New & Genuine Product |
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