Schneider Electric (Barber Colman) 2373-501 Relay 30067439-890 As a 3-speed motor

As a 3-speed motor

the A21959-1 is specifically sized for the A6 and B6 Series

While it may physical fit other Barber Colman ports

The coil is dual-rated for 110V AC at 50Hz and 120V AC at 60Hz

Schneider Electric (Barber Colman) 2373-501 Relay 30067439-890 As a 3-speed motorThe Schneider Electric 2373 501 is a precision engineered pneumatic high low selector relay designed for demanding HVACR control logic applications. Engineered as the direct functional replacement for AK 51832 and AK 51842, this unit effectively selects the highest and or lowest output from up to six independent pneumatic input signals. Operating on a standard 20 psig main air supply, the 2373 501 utilizes proportional action to provide reliable