Instructions

Electrical Connections
Unscrew the four cover screws and lift off the
outer cover.
Diagrams showing the internal
connections of the micro-switch
with:
Flow switch is used to activate a device
when flow starts.
When flow starts and the increasing
operating flow is reached or exceeded, the
common (black wire) and normally open (red
wire) contacts are closed, while the common
(black wire) and the normally closed (blue
wire) are open.
Flow switch used to activate a device when
flow stops.
When the decreasing operating flow is
reached or stops the common (black wire)
and the normally open (red wire) contacts
open, while the common (black wire) and the
normally closed (blue wire) contacts close.
Resistive Load 15 A 15 A 15 A 15 A
Inductive Load 15 A 15 A 15 A 15 A
Motor Load 5 A 2.5 A 3 A 1.5 A
Horsepower 1/8 HP 1/8 HP 1/4 HP 1/4 HP
125 V
AC
250 V
AC
N.C. N.O. N.C. N.O.
Make sure the wires do not
obstruct the function of the
switch mechanism.
Electrical Rating