MARS 61345 Contactor

The MARS 61345 Contactor is a professional-grade 2-pole definite purpose contactor engineered for consistent performance in residential and commercial HVACR systems. This MARS 780 series component features a 24V AC coil and is rated for a 30-amp inductive or 40-amp resistive load, providing a reliable switching solution for compressors, heat pumps, and electric heating circuits. Built with an enclosed body design, it minimizes internal dust and debris accumulation, which translates to quieter operation and improved electrical integrity in demanding environments. The unit serves as a direct replacement for 3100-20Q6 and 45EG20AJ, featuring silver-cadmium oxide contacts that prevent pitting and extend service life under high-cycling inductive loads. For efficient field installation, the MARS 61345 includes multi-purpose coil terminals (quad quick-connects and screw terminals) and an oversized arch window for streamlined wiring. This 2P DP Contactor is the standard for technicians requiring a durable, high-current switch for 50/60Hz applications.

Key Benefits

• Direct Replacement: Seamlessly replaces 3100-20Q6, Furnas 45EG20AJ, and Honeywell DP2030A5004.
• Enhanced Durability: Silver-cadmium oxide contacts offer superior conductivity and arc resistance for 30A full-load applications.
• Contaminant Protection: The enclosed housing protects the 24V coil and contacts from dirt, spider webs, and moisture.
• Professional Installation: Supports both 1/4" quick connects and stripped wire terminations for flexible mounting in various control panels.
• Universal Logic: Standardized base plate and compact footprint fit most air conditioner and refrigeration unit brackets.

Common Questions

• Can I use this to replace a 25-amp contactor? Yes, the 30-amp rating of the 61345 can safely replace a lower-rated 25-amp unit as long as the voltage and pole configuration match.
• How do I confirm the coil is properly energized? Measure the low-voltage circuit across the coil terminals; you should see 24V AC from the transformer when the thermostat calls for cooling.
• Is this compatible with 50Hz electrical systems? Yes, this contactor is dual-rated for 50/60Hz operation, making it suitable for standard domestic and international frequencies.

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.