Larson Electronics 240 VOLT SERIES Operation & Installation Manual Download Page 7

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2.1.4 WIRE SIZING RECOMMENDATIONS

FOR 240V:

FOR 480V:

*For all voltages: Conductors listed are minimum recommended based on largest hard starting &

CNC amps. For combined HP’s greater than 50% of maximum total HP listed in the tables above,

consult NEC & local codes for conductor sizing. The above charts do not replace or supersede any

requirements by local, state, or national electric codes.

Summary of Contents for 240 VOLT SERIES

Page 1: ...ALL PURPOSE CNC HEAVY DUTY Rotary Phase Converters 240 480 VOLT SERIES Smart Digital Phase Converter Operation Installation Manual MTPC DRB 208 240 1P 20HP 3P...

Page 2: ...ether and insulated 4 7 5 8 6 9 Do not use wire nuts or ground any of these connections Use the supplied bolts and make all connections insulated Make sure the Phase Converter Panel the Idler Motor an...

Page 3: ...different voltage is needed then a transformer installed in front of the phase converter will be necessary The three phase output is delta configured This means that voltage measurements between phase...

Page 4: ...g 50 degrees C High humidity 2 1 2 INSTALLATION GUIDELINES CONTROL PANEL IDLER Steps to install the control panel and idler a Mount enclosure on a secure wall or on the idler idler mount models only A...

Page 5: ...losure cover is used for clarity f Wire the idler 240V Bolt idler leads 4 5 6 together Insulate this connection with electrical tape or heat shrink tubing Connect the ground line to the ground screw i...

Page 6: ...otect all wire and machinery with proper size breakers Always make sure rotary phase converter starts before external load s are applied A qualified electrician should do all wiring DO NOT assume that...

Page 7: ...minimum recommended based on largest hard starting CNC amps For combined HP s greater than 50 of maximum total HP listed in the tables above consult NEC local codes for conductor sizing The above cha...

Page 8: ...ner by turning the switch to the stop position As with most electrical equipment frequent stops and starts are harder on the rotary phase converter than steady operation The rotary phase converter is...

Page 9: ...tically start loads after the converter reaches full speed 3 3 1 MAINTENANCE Keep dust and moisture from the control panel and the idler Keep dust from accumulating in the motor Dust can be blown out...