25PS, 42PS, 44PS, 45PS and 46PS

Series Pressure Switches

Key Features

• SPST or SPDT switch with normally

open or closed contacts

• Electrically rated to 600 Vac (44/45PS)

• High cycle life capability (42/44PS)

• Factory calibrated pressure setpoints

from vacuum to 750 psig

• Snap-acting stainless steel

hermetically sealed sensor

• Available with environmentally

sealed switch

• High current capability

This line of pressure switches is

designed for direct control of

motors and other demanding loads

requiring precise pressure settings.

Extended electrical capacities and

life cycles, in both environmentally

sealed and unsealed configurations,

encourage usage in the most rigor-

ous fan cycling and high/low

pressure protection applications.

Applications

Product Bulletin

Operation

The snap-acting stainless steel

diaphragm reverses its curvature

when pressurized to a customer

specified value. When the disc

snaps, it opens or closes a set of

electrical contacts by means of a

transfer pin. Resetting the switch

occurs automatically when pressure

drops below a preset value.

Product Selection Matrix

44PS - Wire Leads

44PS - 1/4” Quick Connects

100,000

250,000

Switch Life

Cycles

Application

Voltage

Environmental

Package

Model Number – Termination

Sealed

Unsealed

The 25PS series is an automatic

reset pressure switch designed to

meet a broad variety of application

requirements. This series is avail-

Sealed

Unsealed

Sealed

Unsealed

Sealed

Unsealed

44PS - Wire Leads

42PS - Wire Leads or 1/4” Quick Connects

45PS - Wire Leads

45PS - 1/4” Quick Connects

45PS - Wire Leads

25PS - Wire Leads or 1/4” Quick Connects

480 - 600 Vac

28 Vdc - 240 Vac

able in SPST and SPDT, offers a

variety of pressure settings, port

fittings and electrical connections.

480 - 600 Vac

28 Vdc - 240 Vac

for 2.5 million cycles.† In applica-

tions such as split room air condi-

tioning systems, the 46PS as a head

pressure control can result in signifi-

cant cost savings when used instead

of a pilot duty switch and relay.

2,500,000†

480 Vac

120 Vac - 240 Vac

Sealed

Unsealed

Sealed

Unsealed

46PS - Wire Leads

46PS - Wire Leads or 1/4” Quick Connects

46PS - Wire Leads

46PS - Wire Leads or 1/4” Quick Connects

The 46PS pressure switch is capable

of breaking 2 amp loads at 480 Vac

†Qualified by application current. Requires TI/customer specification closure and validation testing before application approval.