Siemens 3RA2922-2H Mechanical Lateral Interlock for 3RT202 and 3RT232 Contactors Original Brand New

Overview

The Siemens 3RA2922-2H is a crucial mechanical accessory designed for creating a reliable and safe lateral interlock for Siemens 3RT202 and 3RT232 contactors. This product is essential for applications requiring electrical interlocking of two contactors, such as in reversing starters or Star-Delta combinations.

The kit includes two specialized connectors and one anchor, providing a complete solution for a single combination. By preventing both contactors from being energized simultaneously, the 3RA2922-2H ensures operational safety and protects your equipment from potential damage.

Benefit

• Enhanced Safety: Prevents simultaneous operation of two contactors, crucial for reversing motor applications and other interlocking scenarios.
• Easy Installation: Designed for quick and straightforward mounting on 3RT202 and 3RT232 contactors, reducing installation time and effort.
• Durable and Reliable: Constructed with high-quality materials to ensure long-term performance and mechanical integrity.
• System Compatibility: Seamlessly integrates with the Siemens SIRIUS modular system, ensuring perfect fit and function with 3RT202 and 3RT232 contactors.
• Compact Design: The lateral interlock mechanism adds minimal bulk to the contactor assembly, maintaining a space-efficient control panel layout.

Function

The Siemens 3RA2922-2H mechanical interlock kit operates by creating a physical barrier that prevents the plunger of one contactor from being depressed when the other contactor is already engaged. The two connectors attach to the sides of the contactors, while the anchor links them together.

When one contactor is activated, its movement physically blocks the second contactor’s activation plunger, thereby ensuring that only one of the two contactors can be in the “on” state at any given time. This simple yet effective mechanical function is a primary safety feature for critical motor control circuits.

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