P29NC is a low pressure control with time delay and lockout, which requires manual reset. A drop in pressure energizes the time delay relay and opens a contact after the time delay, shutting down the equipment. The time delay prevents nuisance shutdowns due to momentary fluctuations in system pressures.Features: direct reading scale indicationdust-protected snap action switchtrip-free manual resetreplacement timing relays available Product Specifications BRANDJohnson Controls NEMA RATING1 OUTPUTProportional Voltage: 0 to 10 VDC and Proportional Current: 0 to 20 mA LIMITED WARRANTY YEARS1