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Electrical wiring and connection wiring, Connection – SOR Mini-Hermet User Manual

Page 3

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Form 168 (05.13) ©SOR Inc.

3/8

Electrical Wiring and Connection

WIRING

Ensure that wiring conforms to all applicable local and national electrical codes and
install unit(s) according to relevant national and local safety codes.

The electrical switch element capsule assembly contains UL Listed and CSA
Certified factory-sealed leads. A conduit seal is not required to preserve explosion
proof integrity. Electrical leads are marked NC (Normally Closed), NO (Normally Open)
and C (Common). Electrical switch elements are snap-action and are either 1-SPDT or
2-SPDT (DPDT) set to actuate simultaneously.

2-SPDT

(DPDT)

Pressure

Blue (C1)
Black (NO)
Red (NC)

Green (GND)

Wiring Lead

Code Colors

Blue (C1)

Black (NO)

Red (NC)

Yellow (C2)

Brown (NO2)
Orange (NC2)

SPDT

Pressure

NO1

NO2

Green (GND)

CONNECTION

Use two wrenches when connecting to the electrical conduit or conduit fitting.


1. One wrench to TURN the electrical conduit.

2. A 1-1/8 inch open-end wrench to HOLD the switch

element capsule.

TACK WELDS

Do NOT put stress on
tack welds OR
colored lacquer
at the switch
element capsule
when connecting the
electrical conduit.

COLORED LACQUER

conduit