Theory And Diagnostic Information; Electrical Component Symbols - Textron Jacobsen InCommand PGM 22 Technical/Repair Manual

Theory and Diagnostic
Information

Electrical Component Symbols

The following symbols are used in the electrical
schematics to represent various electrical components.
Single Pole, Single Throw
(SPST)
Single Pole, Double Throw
(SPDT)
Temperature Switch
t˚
Relay
86 30
85 87 87A
Fuse
Electric Motors (may also
include "AC" or "DC")
M
Alternator
G
3
U
4157082 First Edition
Double Pole, Single Throw
(DPST)
Double Pole, Double Throw
(DPDT)
Pressure Switch
P
Circuit Breaker
Stator
G
ELECTRICAL
4
4-3