System Components
UL EX-4510 12-1-01 Page 1-25
Description
The pressure switch is operated by the INERGEN
™
agent
pressure when the system is discharged. The pressure
switch can be used to open or close electrical circuits to
either shut down equipment or turn on lights or alarms. The
double pole, single throw (DPST) pressure switch is con-
structed with a gasketed, water tight housing. The housing
is constructed of malleable iron, painted red. A 1/4 in. NPT
pressure inlet is used to connect the 1/4 in. pipe from the
INERGEN system.
BAKELITE is a trademark of Union Carbide Corp.
ANSUL and INERGEN are trademarks of Ansul Incorporated or its affiliates.
The pressure switch can be installed either before or after
the pressure reducer in the distribution piping.
Minimum operating pressure is 50 PSI (3.5 bar).
Pressure Switch – DPST
Shipping Assembly
Part No. Description
846250 Pressure switch – DPST
Component Material Thread Size/Type Electrical Rating Approvals
Pressure Switch Switch: Conduit Inlet: 3/4 in. NPT Female 2 HP – 240 VAC/ UL Listed (EX-4510)
DPST BAKELITE Pressure Inlet: 1/4 in. NPT Female 480 VAC
Housing: 2 HP – 250 VDC,
Malleable 30A – 250V AC/DC
Iron 5A – 480V AC/DC
Piston:
Brass
Cover:
Brass
MALLEABLE IRON
FINISH – RED PAINT
BRASS RESET
PLUNGER
MOISTURE-PROOF
JOINT
GASKET NUT
“O” RING GASKET
NAMEPLATE
DOUBLE POLE –
HEAVY DUTY
TOGGLE SWITCH
WITH FULLY
ENCLOSED
BAKELITE BASE
BRASS PISTON
PISTON “O” RING
GASKET
1/4 IN. UNION
3/4 IN.
ELECTRICAL
CONDUIT
OUTLETS
TO
POWER
TO ELECTRICAL
EQUIPMENT TO
BE CONTROLLED
1/4 IN. PIPE
FROM CYLINDERS
000716
004593
3 5/8 IN.
(9.2 cm)
2 7/8 IN.
(7.3 cm)
4 9/16 IN.
(11.5 cm)
ANSUL INCORPORATED, ONE STANTON STREET, MARINETTE, WI 54143-2542 715-735-7411 Form No. F-2001276 ©2001 Ansul Incorporated Litho in U.S.A.
19/64 IN. (7.5 mm)
MOUNTING HOLE –
TYP. 2 PLACES
ANSUL
®
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