LSiS UA-1 1a1b Side Auxiliary Contact Block for MC-9b to 150a Contactors

The LSiS UA-1 1a1b is a side-mounted auxiliary contact block engineered specifically for integration with LSiS MC-9b through 150a series contactors. This component serves as a critical interface for industrial control systems, providing essential feedback on the switching status of the main contactor. By adding this block, users can effectively monitor and manage electrical circuits, ensuring that automation processes operate with high reliability and precision.

Advantages

This auxiliary contact block offers a robust design that ensures seamless mechanical and electrical compatibility with the specified contactor range. The 1NO+1NC configuration provides versatile signal options, allowing for both normally open and normally closed circuit monitoring. Its side-mounting design saves space on the DIN rail or mounting plate, making it an efficient choice for compact control panels where every millimeter counts. The high-quality construction guarantees long-term durability and consistent performance in demanding industrial environments.

Suitable for

• Industrial automation systems
• Power distribution panels
• Motor control centers
• Electrical circuit monitoring and signaling

This product may not be suitable for applications requiring a higher number of auxiliary contacts than the 1NO+1NC configuration provides, or for use with contactor series outside of the specified MC-9b to 150a range. It is also not intended for direct high-power switching applications, as it is designed strictly for control and signaling purposes.

Key specifications

• Configuration: 1NO (Normally Open) + 1NC (Normally Closed)
• Mounting type: Side-mounted
• Compatibility: LSiS MC-9b to 150a contactors
• Function: Switching status feedback

To install the LSiS UA-1 1a1b, ensure that the main contactor is disconnected from all power sources. Align the auxiliary block with the side mounting interface of the contactor and snap it into place according to the manufacturer's mechanical guidelines. Once secured, connect the control wiring to the terminals, ensuring that the wire gauge is appropriate for the terminal capacity. Verify that the contactor mechanism moves freely and that the auxiliary contacts actuate correctly before restoring power to the system.

What to consider before purchase

• Verify the model number of your existing contactor to ensure it falls within the MC-9b to 150a range.
• Check available space on the side of your contactor within the control cabinet.
• Confirm that your control circuit requires a 1NO+1NC configuration.

Usage recommendations: Always perform a functional test of the auxiliary contacts using a multimeter before integrating the contactor into a live production circuit to ensure proper signal transmission.