SOR High Static Operation - Manual (Page 3)

Form 391 (01.13) ©SOR Inc. 3/12
Electrical Connection
Weathertight Models: Interrupt electrical power. Remove the top cover plate. Terminal
block is standard. The insulation is marked C - Common, NO - Normally Open,
NC - Normally Closed and G - Ground (earth) when applicable.
Explosion-Proof Models: Hermetically sealed switching element capsule has 18”,
18-AWG wire leads color coded and marked C - Common, NO - Normally Open,
NC - Normally Closed and G - Ground (earth) when applicable. (See schematic.)
Ensure that the wiring conforms to all applicable local and national electrical codes and
install unit(s) according to relevant national and local safety codes.
Blue (C)
Black (NO)
Red (NC)
Differential Pressure
HI
SPDT
Green (GND)
Blue (C)
Black (NO)
Red (NC)
Yellow (C2)
Brown (NO2)
Orange (NC2)
Green (GND)
Differential Pressure
No. 2 No. 1
HI
2 SPDT
LO
LO
Wiring Lead Code Colors