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12"/80# LS,100/425# HS,# SWITCH - (High Pressure Cutout Control)

Price: $247.90 
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SKU: PRS70LB6
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P70, P72, and P170 Series Controls for High Pressure Applications



Part: P170LB-1


Manufacturer: Johnson Controls


Description: 20"/100#LS,100/425#HS,# SWITCH

Category: Electrical Controls


Sub Category:
Pressure Controls






Description

The P70, P72, and P170 controls for high
pressure applications are designed primarily
for high pressure cut-out control, headpressure

control, and condenser fan cycling
control on commercial refrigeration and air
conditioning applications.

Controls are available in several pressure
ranges and are compatible with most
common refrigerants. They may also be used

on other non-corrosive fluid applications.

Several different electrical ratings and switch
configurations are available. The P72 models
provide direct control of 208-240 volt singlephase

motors up to 3 hp, and 208-220 volt
3-phase motors up to 5 hp.

Features

• all-steel case and cover provides long
lasting, rugged protection for internal
components

• “Sight-Set” calibrated pressure adjustment
displays a visible pressure scale, fully
adjustable through the range without

removing the cover (on NEMA 1 enclosure
models)

• manual reset lockout option provides “tripfree”
lockout that cannot be overridden or
reset until pressure returns to specified
level

• variety of available pressure connection
styles allows greater flexibility when
mounting control and adapting pressure
connections to field application

requirements



Applications

• P70C, P70D P170C and P170D models

with Single-Pole Single-Throw (SPST)

Open-high switch action are the most

popular models, and are typically used for

high-pressure cutout. The C models are

automatic reset. The D models have a

manual reset lockout mechanism. Some

P70C, P70D P170C and P170D models

are UL Listed as refrigeration pressure

limiting controls.

• P70A and P170A models are available

with SPST Open-low switch action, and

typically are used for condenser fan

cycling control.

• P70 and P170 models with Single-Pole

Double-Throw (SPDT), or 4-wire, 2-circuit

switch action allow users to install alarm

devices or other control circuits.

• P72 models have a Double-Pole Single-

Throw (DPST) switch with load-carrying

contacts that can provide direct control of

208-240 V single-phase motors up to 3 hp,

and 208-220 V 3-phase motors up to 5 hp.

Refer to “DPST Electrical Ratings (P72A,

B, C, and D Models)” on page 3.

NEMA 1 enclosures are standard on most

models.





Replaces Part Numbers: P170LB-6, CARP170LB-6

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