MARS 61612 Auxiliary

The MARS 61612 Auxiliary Switch is a high-performance electromechanical component engineered for side-mount installation on definite purpose contactors in HVACR systems. This heavy-duty auxiliary contact kit provides a 1 NO (Normally Open) / 1 NC (Normally Closed) configuration, allowing for precise remote signaling and complex system interlocking. Designed to handle current ratings from 25 Amp to 60 Amp, this component ensures reliable operation under demanding inductive motor starting loads and resistive heating applications. The snap-on design facilitates rapid field installation, reducing downtime during critical service calls. Built to meet ARI 780/790 standards, the 61612 utilizes silver-cadmium oxide contacts to maintain low resistance and prevent pitting, ensuring long-term electrical switching reliability in commercial and residential refrigeration environments.

• Enhanced Control: Features a dual-contact 1NO/1NC setup for simultaneous status reporting and load management.
• Universal Compatibility: Specifically designed for MARS 780 contactors and compatible with FURNAS 49ACR6 cross-references.
• Durable Construction: Rated for high-amperage applications (25-60A) with a focus on industrial-grade durability.
• Efficient Installation: Side-mounted snap-on mechanism allows for quick integration without internal contactor modifications.

Common Questions

Is the MARS 61612 interchangeable with other brands?
Auxiliary switches are typically manufacturer-specific. While this part is a direct replacement for FURNAS 49ACR6, it is engineered for MARS 780 Series contactors. Always verify the mounting bracket profile before installation.

What is the primary function of the 1NO/1NC configuration?
This configuration allows one set of contacts to close (completing a circuit) while the other opens (breaking a circuit) when the main contactor is energized, which is essential for status indicators and safety interlocks.

Can this be used on both 1-pole and 3-pole contactors?
Yes, this auxiliary switch is designed to snap onto the side of MARS definite purpose contactors ranging from 25A to 60A, including multiple pole configurations, provided the side-mount tracks are present.

This item is not eligible for free shipping.

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.