2 Operation and Troubleshooting
Switching the XADC On and Off
The XADC is always On when AC voltage is applied. To switch the XADC Off, disconnect the AC input voltage by turning the AC breaker off.
Maintenance
It may be necessary to replace the DC fuses in the XADC. Fuses for XADC should be:
2 × 30 Aa | 3 × 30 Aa | 4 × 30 Aa |
a.Littelfuse Type 257 or equivalent
If the optional AC/DC Distribution Panel is installed, it may be necessary to replace the AC breakers and DC fuses.
Fuses for DC loads should be:
Littelfuse Type 257 or equivalent and the maximum allowed fuse for the DC loads is 20 A.
Breakers for the AC side should be:
MAIN: Cutler Hammer/Bryant/Westinghouse Type BR Series and ITE Gould QP Series. The maximum current rating for the main breaker is not to exceed the rating of the panelboard.
BRANCH: Cutler Hammer/Bryant/Westinghouse Type BR, BD Series and ITE Gould QP, QT Series. The maximum current rating for the branch breaker is not to exceed 20A.
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