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)
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, double throw (DPDT) pressure switch is con-
structed with an explosion-proof housing suitable for haz-
ardous environments. A 1/4 in. NPT pressure inlet is used
to connect the 1/4 in. pipe from the INERGEN system.
Note: Suitable for hazardous locations, Class I, Division I, Groups C,
D, and Class II, Division I, Groups E, F, G.
System Components
UL EX-4510 2-1-12 Page 1-18.1
REV. 5
Pressure Switch DPDT – Explosion-Proof
Shipping Assembly
Part No. Description
843241 Pressure switch – DPDT
Component Material Thread Size/Type Electrical Rating Approvals
Pressure Switch Housing: Conduit Inlet: 3/4 in. NPT Female 10A - 125 VAC UL Listed (EX-4510);
DPDT Malleable Pressure Inlet: 1/4 in. NPT Female 5A - 250 VAC Listed for use with
Iron FM Approved systems
1/4 IN. PIPE CONNECTION
TO INERGEN SYSTEM
1/4 IN. UNION
3/8 IN. X 1/4 IN. BUSHING
NAMEPLATE
2 11/32 IN.
MOUNTING HOLES
7 7/8 IN.
(20 cm)
6 1/2 IN.
(16.5 cm)
5 3/16 IN.
(14.7 cm)
5 1/8 IN.
(13 cm)
3 9/16 IN.
(9 cm)
5 5/8 IN.
(14.2 cm)
2 5/8 IN.
(6.6 cm)
3/4 IN.
CONDUIT
OUTLET
000455000454
3/4 IN.
CONDUIT
OUTLET
ANSUL
®
Copyright © 2012 Tyco Fire Products LP.
All rights reserved.
Form No. F-9324-06
One Stanton Street +1-715-735-7411
Marinette, WI 54143-2542 www.ansul.com
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