The B321 is compatible with LR

This ruggedly constructed switch is built to handle the cycling demands of commercial and residential blowers without drifting from its 130-degree trip point

it ensures the precise delivery of a high-voltage spark to the oil spray

the critical specs include the sleeve bearing system and a standard 1/2-inch shaft diameter

Belimo NFB24-SR-S Actuator THPU32HP7Y The B321 is compatible withThe Belimo NFB24 SR S is a high performance spring return damper actuator engineered for reliable fail safe operation in HVAC systems. Delivering 90 in lb of torque, this proportional control actuator operates on a 2 10VDC control signal and is compatible with both 24VAC and 24VDC power supplies. Designed for demanding damper automation and valve linkage applications, it features a rugged NEMA 2 rated housing and integrated auxiliary switches for