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A breaker protects the wire size of the feeder that is connected to it. The amperage of the load must be found. Without a voltage stated the amperage from the wattage given can not be calculated. The equation for amperage when the kw is given is A = kW x 1000/1.73 x volts x pf. The pf constant to use is .9.
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What size wire and breaker for a 240 volt single phase 20 kw electric furnace rated at 83.3 amps?
AWG #3 copper.
What breaker size do you use for a 270 Kw power rated equipment and power supply of 380 vac 3 phase?
I=270000/380/1.732 I=410A USE: 500A CIRCUIT BREAKER
What is the kw input on a 50amp breaker with a 208v three phase electrical feed?
7200
What is the Breaker size for 130 KW 3 Phase Chip collector fan working on 380 V?
Calculate the ampereage at .8 pf and take a breaker of 150% of ampere nd set the over current protection at 125% of full load current.
Can I run a 12 KW motor with a single phase?
To answer these types of questions, a voltage of the single phase motor should be stated. It has to do with the breaker sizing and wire sizing and current load.
How much breaker load Amps required for 31 kw?
Impossible to say without more details. It depends entirely on the voltage of the supply and whether it's single-phase or three-phase.
What is breaker size for 240 volt 9 KW?
The formula you are looking for is I = W/E.
What is the size breaker per phase 200kva generator?
if you have 200 kva so it's 160 KW then ,you need 400 A MCCB and setting at 0.9 and use cable 4c.185 mm2 if the SMDB is nearby and all this will be change according to the ambient temperature and the electrical code used in your area
What is the cable size for 600V 3 phase ac motor?
you need the current of motor or the KW/HP rating
What is the starting current of 315 kw 380v motor..pf of .80 percent 3 phase..and what is the circuit breaker to use..sub breaker and main breaker?
starting current of 315 kw motor in start delta 2.5 time for single sec. if your cable lingth 130 meter u can use 150mm2 (3 cable per phase) 150mm2 single cable current 292 Amp voltage drop 0.28/meters so u can use breaker 1000 Amp and set Im time (for starting current) setting avalible in breaker.
Can you run 22 kw 600v 3 phase induction motor?
Yes this size motor can be operated by bringing a 600 volt three phase supply to it.
How do you calculate the dc circuit breaker rating for a given kw?
the given kw Divide by the your voltage
