Electrical wiring and connection wiring, Connection – SOR Mini-Hermet User Manual
Page 3

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