8
Set Points from 2 to 70 psi and 2” to 22” Hg
Series III
Factory Set Variable Differential Pressure & Vacuum Switches With Snap Action Contacts
The Series III switch is a customizable
switch built per customer specifications.
It features a non-ferrous chamber
and excellent set point integrity at
extreme temperatures. The exclusive
snap switch features: Low-contact
resistance, wiping action, fast transfer
time, gold over silver contacts, and
an adjustable differential. It’s been
thoroughly tested for shock and
vibration resistance and is particularly
valuable in applications where
hysteresis, fast transfer time, and low
contact resistance are vital.
2.5” REF.
1.69” REF.
Pressure Switch/Factory Set
Set Point Range Differential
120000
120001
120002
120003
120004
2-4 PSI
4-12 PSI
12-24 PSI
24-40 PSI
40-70 PSI
1-1.5 PSI
2-6 PSI
8-12 PSI
10-18 PSI
15-20 PSI
Reference #
Vacuum Switch/Factory Set
Set Point Range Differential
Reference #
120005
120006
120007
120008
4-12” H2O
0.4-1” Hg
0.4-1” Hg
0.6-1.5” Hg
15-36” H
2
O
2-6” Hg
6-12” Hg
12-22” Hg
Specify:
1. Set Point
2. Actuate on increasing or decreasing pressure
3. SPST N.O. or N.C., SPDT
Vacuum Switch
Standard Specifications
Type:
Snap action switch
Set Point:
Factory set
Vacuum:
2 to 22” Hg
15 to 36” H2O
Operating
Pressure:
200 PSI
Proof Pressure:
350 PSI
Burst Pressure:
500 PSI
Ratings:
Resistive:
15 AMP-
6 VDC
8 AMP-
12 VDC
4 AMP-
24 VDC
Inductive:
1 AMP- 120 VAC
0.5 AMP- 240 VAC
Dry circuits
Diaphragm:
Silicone rubber
Temperature
Range:
-40° F to + 250° F
Connector:
1/8 -27 PTF SAE
short male thread
Terminals:
8”
Wire leads-18 ga.
Circuitry:
SPST-N.O. or N.C., SPDT
Base:
Brass
Housing:
Die cast zinc
Options:
Silver contacts, silver
soldered base,
fluorosilicone rubber
diaphragm
Terminations:
Wire leads with wide
selection of Cannon,
Packard, AMP, and others
available
Connectors:
1/4” and 3/8” PTF SAE
short; 1/2-20 UNF
(o-ring fitting);
3/8-24 UNF (3/16” tube);
7/16-24 UNF (1/4” tube);
and Metric
Pressure Switch
Standard Specifications
Type:
Snap action switch
Set Point:
Factory set
Pressure:
1-70 PSI
Operating
Pressure:
200 PSI
Proof Pressure:
350 PSI
Burst Pressure:
500 PSI
Ratings:
Resistive:
15 AMP-
6 VDC
8 AMP- 12 VDC
4 AMP- 24 VDC
Inductive:
1 AMP- 120 VAC
0.5 AMP- 240 VAC
Dry circuits
Diaphragm:
Beryllium copper
Temperature
Range:
-40° F to + 250° F
Connector:
1/8 -27 PTF SAE short
male thread
Terminals:
8” Wire leads-18 ga.
Circuitry:
SPST-N.O. or N.C.,
SPDT
Base:
Brass
Housing:
Die cast zinc
Options:
Silver contacts,
silver soldered base
Terminations:
Wire leads with wide
selection of Cannon,
Packard, AMP, and
others available
Connectors:
1/4” and 3/8” PTF
SAE short; 1/2-20
UNF (o-ring fitting);
3/8-24 UNF (3/16”
tube); 7/16-24 UNF
(1/4” tube); and metric
Series III
Pressure Switch
(Vacuum Switch Similar)
Series III pressure and vacuum switches are custom built
switches designed to customer specifications therefore
minimum ship quantitities are required and are not
available off-the-shelf.
Содержание Switches
Страница 1: ...Sensing and Control ...
