SPST Open On Decrease In Pressure Difference Factory Replacement Differential Pressure Control (John

SPST Open On Decrease In Pressure Difference Factory Replacement Differential Pressure Control (John
Code: PRSD74BA1CP
Price: $357.56
Quantity in Basket: None
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SPST Open On Decrease In Pressure Difference Factory Replacement Differential Pressure Control (Johnson Controls)

Description
Series P74 measures the pressure difference
between two sources: supply lines and return
lines. A change in differential pressure will
reposition the switching mechanism to cause
corrective action of the supplementary control
equipment.

Features
• field-proven Pennswitch with a completely
enclosed contact mechanism
• pressure differential setting is easily
changed without removing the cover

Accessories
• Includes a universal mounting bracket

Applications
• differential pressure sensing on chillers or
water-cooled condensers
• lube oil failure cutout for refrigeration
compressors (same as the P28, but does
not incorporate time delay)
• positioning M100 Series motor-actuated
valves (P74JA-2)
• to prove pump operation

Product Specifications:
**FOR ALL NON-CORROSIVE LIQUIDS**

Switch Action: SPST Closes On Decreases In Pressure Difference
Range Pressure Differential (kPa) (a): 8 to 70 Adjustable (55 to 483)
Switch Differential: 8 to 30 Adjustable
Pressure Connections: 36 in. Cap. With 1/4 in. Flare Nut
Bellows Material: Stainless Steel

Electrical Ratings: 120 V - 208 V - 240 V - 277 V
AC Full Load Amp: 20.0 - 18.7 - 17.0 - NA
AC Lock Rotor Amp: 120.0 - 112.2 - 102.0 - NA
AC Non-Inductive A: 22.0 - 22.0 - 22.0 - NA
Pilot Duty: 125 VA, 120 to 600 VAC; 57.5 VA, 120 to 300 VDC

Replaces Part Numbers:
P74BA-1C CARP74BA1C