The B280 is designed for a maximum differential pressure of 50 psi for typical control applications to maintain quiet operation and prevent cavitation

it utilizes two compact

Common Questions & Technical Support Which Williams models use this switch

Contamination Resistance: The sealed thermoplastic housing prevents contact pitting caused by environmental pollutants

offering a compact footprint for tight installations where reliable liquid injection is critical for compressor protection and heat exchange efficiency

Siemens Building Technology QFA3171 Sensor 340155-7026 The B280 is designed forThe Siemens Building Technology QFA3171 Sensor is a high precision instrumentation solution engineered for demanding HVACR environments. This room humidity and temperature sensor utilizes a 2 wire 4 20mA output signal for both relative humidity (0 100% RH) and temperature monitoring, ensuring robust signal integrity over long cable runs in industrial or commercial facilities. Designed without a display to maintain a low profile and minimize field