Hartland Controls CON-AUX300-1 AUX Switch R-410A Installation Versatility: Pigtail terminations and

Installation Versatility: Pigtail terminations and a compact galvanized housing allow for fast mounting on metal or fiberglass ductwork

Designed specifically for the 3TX71 series plug-in relays

this regulator is tapped for NPT vent bosses and can be paired with an 12A06 vent limiting orifice or 12A04 device for upright installations

and refrigerant charging without compromising system integrity

This is a multi-trial model

Hartland Controls CON-AUX300-1 AUX Switch R-410A Installation Versatility: Pigtail terminations andThe Hartland Controls CON AUX300 1 is a high performance SPDT auxiliary switch engineered specifically for seamless integration with three phase contactors. Designed for heavy duty HVAC R applications, this contactor auxiliary contact provides critical status feedback and control interlocking for industrial and commercial systems. It features a single pole double throw (SPDT) configuration, allowing for flexible wiring of both normally open (NO) and