Switch ratings, Preventive maintenance – SOR Vertical Displacer Top Mounted Series Level Switch User Manual
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Form 425 (08.12) ©2012 SOR Inc.
Switch Type
Resistive Amperage
Inductive Amperage
110-130 V
A
C
210-250 V
A
C
20-30 VDC
110-130 VDC
210-250 VDC
110-130 V
A
C
210-250 V
A
C
20-30 VDC
110-130 VDC
210-250 VDC
Standard Dry Contact
15
15
5
.5
.25
15
15
5
.4
.13
Hi-Temperature Dry Contact
5
5
1.5
.5
-
5
5
1
.25
-
Gold Contact
1
-
1
-
-
1
-
.5
-
-
Anti-Vibration
15
15
5
.5
.25
15
15
5
.4
.13
High-Amp DC
-
-
10
10
3
-
-
10
10
3
Hermetically Sealed
11
11
5
.5
.25
11
11
.25
.25
.13
Gold Contact Hermetically Sealed
1
-
1
-
-
1
-
.5
-
-
Hi-Temperature Hermetically Sealed
5
5
1.5
.3
-
5
5
1
.25
-
Mini
Hermetically Sealed
DPDT
5
5
5
.5
-
5
5
2.5
.25
-
SPDT
11
11
5
.5
.25
11
11
2.5
.25
.13
Anti-Vibration Gold Contact
1
-
1
-
-
1
-
.5
-
-
Gold Contact Mini-Hermet
1
-
1
-
-
1
-
.5
-
-
Anti-Vibration Mini-Hermet
DPDT
5
5
5
.5
-
5
5
2.5
2.5
-
SPDT
11
11
5
.25
.25
11
11
2.5
.5
.13
Hi-Temperature Mini-Hermet
5
5
1.5
.5
-
5
5
1
.25
-
Extra Hi-Temperature (Ceramic)
1
1
1
.4
-
1
1
.4
-
-
Standard Pneumatic 316SS Fittings
Non-bleed 3-way aluminum valve body. Buna-N O-Rings
150 psig maximum supply, 24 CFM @ 100 psig
Switch Ratings
NOTE: Pneumatic switches must be used with clean, dry air or gas. All switches include a
pre-wired terminal block. These switches have higher current ratings for SPDT than DPDT.
Periodic inspections are necessary to keep the switch in good working order. SOR recommends
a systematic program of preventive maintenance be implemented at the time of installation. The
following precautions are important and will help keep your switch in top operating condition.
Keep the switching mechanism clean. Never leave the cover off longer than absolutely
necessary. There is no need to lubricate any part of the switch.
Inspect switches and wiring monthly. Dry contact switches should be inspected for
excessive wear and misalignment. Pneumatic switch connections and tubing should be
inspected for cracks and air leakage. Repair or replace as required.
Do not operate switches that are defective or malfunctioning. When replacing parts,
refer to Replacement Instructions supplied with the parts and follow instruction
carefully. When in doubt, contact the factory or the SOR representative in your area.
Preventive Maintenance