Page 423 - Industrial Power Engineering and Applications Handbook
P. 423
Switchgear and controlgear assemblies 13/397
Under voltage
R Y B N relav
F31 ra
22ov
ac
T1
e2
&
bl -Thermostat cut off contact
S15 - Space heater switch
S16 - Panel door switch
ell - Space heater
e2 - Interior illumination
To alarm
Figure 13.61 Schematic for panel space heater and internal circuit
illumination To trip
circuit
1111
Figure 13.62 Schematic for instruments’ wiring
