TEST SWITCHES TEST SWITCHES - Brooks Utility

Meter Devices Test Switches
The Short Circuit Clip
Developed by Meter Devices, the
short circuit clip eliminates the
weakest, most troublesome part of
most present
day test
switches.
It is a make
before-break
type, made
from one piece of
phosphor bronze. It cannot get out
of alignment; projections on the
knife blade prevent raising the
blade to a point where it is out of
contact with the clip. A return
strap completes the circuit to the
spring jack.
Test Jack
Eliminates the possibility of
accidentally opening CT
secondaries and permits safe, easy
measurements to be made in
current circuits without disturbing
permanent wiring. A dual-circuit
test plug, such as Meter
Devices Cat. #903-1116, is
inserted into the test jack,
putting the measuring
instrument in
series with the
current circuit.
Barriers
Barriers of flame-resistant nylon
are normally supplied between
potential elements of all switches
where center-to center spacing is
less than one inch. Meter Devices’
barriers are higher than
competitive brands to provide an
extra measure of safety.
Optional Channel Barriers
Meter Devices
can now supply
channel barriers
as an option
replacing the
standard snap-in
barriers. The
channel barriers
are made of the
same flame-resistant material as
the standard snap-in barriers. The
channel barriers also provide
the mechanical and electrical
advantages as the standard
snap-in barriers.
Wire Saddle & Terminal
Studs
Provided as standard for wiring test
switches, wire saddle traps the
wire or crimp connector to insure
positive location and protect
against rotation. The terminal stud
is long enough to accept multiple
connections at one point. For ease
of wiring, solderless terminals are
an option (in place of the wire
terminal stud).
Hexagon Nuts
Of 3/8 “ heavy brass for fastening
wire.
Test Ears - Provided
A serrated or corrugated test ear of
ample size is designed to positively
prevent test clips from coming off
unless the spring tension is
released.
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