SINGLE PHASE TWO WORKERS INTERNAL CONTACTOR (OPTION 2)
Figure 2 shows the Single Phase Powerchain AC wiring where no external contactor and CT is installed.
This configuration can be used when the AC source capacity is no more than 15kW per phase for the
SPMC models, or 30kW per phase for the SPLC models.
Figure 2: Single Phase AC Wiring Schematic with 2 Workers
AC Source Power < 15 kW for SPMC or 30 kW for SPLC models
THREE PHASE TWO WORKERS PER PHASE
Figure 3 (following page) shows a Three Phase Powerchain system with two workers per phase. An
external three phase AC source contactor is required with external CTs for each phase.
NOTE: A three phase Powerchain system with one or more workers per phase MUST have external CTs
and an external AC Source contactor fitted.
NOTE: Three phase circuits which have loads that cannot tolerate a phase failure must be protected by
a Phase Failure Relay (not supplied).
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