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Range and Differential Specifications
Electrical Ratings
Features
• Heavy duty, low profile
elements withstand unduly
high overrun pressures that
may be encountered in
shipment or in some machine
rooms.
• Lockout models have a
“trip-free” manual reset.
• Long life contact structure with
high contact force -- no
contact bounce.
• Single unit mounting and
wiring -- saves installation time
and material.
General Description
Single and double pole models
are available with contacts that
open on a pressure differential
increase or close on a pressure
differential increase. Also
available are models with single-
pole, double-throw enclosed
contacts or with main and
separate reverse-acting auxiliary
contacts. Controls with lockout
feature require manual reset to
reclose circuit after lockout. The
“trip-free” reset will not permit
restart until reset button is pushed
and released.
The operation point of the control
is readily adjusted by rotating the
adjusting disk. The control set
points are easily read on a
calibrated scale.
2 P74 Product Bulletin