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# Reservoir Pump Station MCC design
Questions:
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VFDs?-
Control scheme-
Is the level transmitter there?-
MCC Requirements
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Supply Voltage - 480V 3P 3W 200kA SCCR-
Feeder wires 2-3/0 per phase-
Main Breaker 100% rating 400A Bottom Feed-
Ratings - 42kA symetrical bus bracing - Class II Type B wiring - Type 3R enclosure-
Ground Bus-
Motor Control - 2 each Soft Starter rated 125HP 460V 3P motor namplate FLA = 156, Allen-Bradley SMC Flex or equal-
Motor Control Pilot Devices - Hand-Off-Auto switch, Green running indicator LED, Red soft starter fault indicator LED, Reset push button for soft starter fault reset-
Door mounted programming terminals for soft starters -
Elapsed runtime meters-
Ethernet I/P (Rockwell Automation) communications protocol-
SCADA interface terminal block with Remote Start/Stop input, Motor Running, and Motor Fault outputs-
Dedicated section with backpanel for control equipment. PLC by others. Minimum 2 sq/ft-
480x120 distribution transformer and load center with a minimum of four 15amp single pole breakers-
TVSS on incomming power-
Heater Strips with adjustable thermostat-
Vents and/or fans as needed to meet soft starter cooling requirements-
100% main breker rating
156 FLA x2= 312A continuous load (if both pumps run at the same time)
80% of 400A = 320A