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Vapor-Charged Sensing: The 20' sensing bulb is spot-sensitive
For contractors managing commercial HVAC systems
and motor control with industrial-grade reliability
Modular Scalability: Part of the Johnson Controls System 350 family
Carrier HN53TB031 Auxiliary Contact Switch 320788-703 Vapor-Charged Sensing: The 20' sensingThe Carrier HN53TB031 Auxiliary Contact Switch is a critical field installable component designed for seamless integration with Carrier 30XA and 30XV chillers. This DPST (Double Pole Single Throw) switch provides reliable secondary signaling for HVAC control circuits, ensuring the automation system receives accurate feedback on contactor status. Engineered for high cycle industrial applications, the HN53TB031 mounts directly to the main power
US$ 2897.00
US$ 2410.00