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this is an auxiliary switch designed for pilot duty and control signals
High BTU Capacity: Rated for up to 510
High-Temperature Durability: Constructed from 301 Stainless Steel to withstand the rigorous cycling and thermal stress of steam service
Engineered for a precise fit
Dual-Drive Logic: Enables the actuator to simultaneously direct-couple to one shaft while linking to a second damper via the crank arm
Johnson Controls A99BC-25 Temperature Sensor this is an auxiliary switchThe Johnson Controls A99BC 25 is a high precision PTC silicon temperature sensor designed for demanding HVACR applications. Engineered with a passive PTC (Positive Temperature Coefficient) element, this sensor features a reference resistance of 1,035 ohms at 77? F (25? C), ensuring reliable performance when integrated with System 450, A421, and System 350 control modules. The A99BC 25 temperature sensor is equipped with a 9 3 4 inch high temperature
