Selection chart - PENN Controls - LIT-1927190 - P29NC - P29NF - Lube Oil Pressure Control - P29 Low Pressure Cutout Control with Time Delay

P29 Series Low Pressure Control with Time Delay Catalog Page

PENN Controls
Product name
P29 Low Pressure Cutout Control with Time Delay
Document type
Catalog Page
Document number
Revision date
Product code number Time delay setting Switch action Pressure range Differential psi (kPa) Max overpressure psig (kPa) Max working pressure psig (kPa) Pressure connection
P29NC-2C 60 s (factory set) Single-pole, single-throw (SPST) 20 in. Hg vacuum to 100 psig (-68 to 690 kPa) 2.2 ±1.5

(15.2 ±10.3)





1/4 in. external flare fitting
P29NC-3C 36 in. copper capillary tube with 1/4 in. flare nut
P29NC-38C 1 120 s
P29NF-1C 2

Example: Setpoint at 10 psig. On a rise in pressure, the timing circuit opens at 10 psig and time out ends. On a fall in pressure, the timing circuit energizes at 6 psig to 9 psig and the time out begins. If the pressure fails to reach 10 psig within the 60 second time delay, the main contacts open, which shut down the controlled equipment.

1 Includes mounting bracket
2 With alarm contacts