MODEL PS40-EXF
EXPLOSION PROOF
PRESSURE SWITCH
PRINTED IN USA MKT. #5401030 - REV K
7/07
PAGE 2 OF 3
Typical Sprinkler Application - Dry System
Typical Electrical Connections
Note: High switch changes with pressure increase. Low switch changes with pressure decrease.
An uninsulated section of a single conductor should not be looped
around the terminal and serve as two separate connections. The wire
must be severed, thereby providing supervision of the connection in
the event that the wire becomes dislodged from under the terminal.
Typical Electrical Connections
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