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| Illustration 1 | g01428001 |
Main power relay circuit | |
The components of the main power relay circuit are the key start switch, fire suppression control loop receptacle (foam type), battery electrical isolator loop plug and main power relay magnetic switch.
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| Illustration 2 | g03739343 |
(1) Key start switch | |
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| Illustration 3 | g01263021 |
Main power relay magnetic switch (under cover) | |
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| Illustration 4 | g01427661 |
(2) Main power relay magnetic switch | |
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| Illustration 5 | g01267337 |
Operator station (3) Fire suppression control loop receptacle (foam type) | |
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| Illustration 6 | g01284787 |
(4) Battery electrical isolator loop plug | |
When key start switch (1) is turned to the ON position, 24 V power is supplied via fire suppression control loop receptacle (foam type) (3) and battery electrical isolator loop plug (4) to main power relay magnetic switch (2). Main power relay magnetic switch (2) is energized and the relay contacts are closed. 24 V power is now supplied to all remaining circuit breakers.