answersLogoWhite

0

To determine the appropriate circuit breaker size for a 9.4 kW three-phase machine, you can use the formula: Breaker Size (Amps) = Power (Watts) / (Voltage × √3). Assuming a standard voltage of 400V, the calculation would be approximately 13.5 Amps. It's advisable to select a breaker rated higher than this calculated value, typically rounding up to the nearest standard size, such as a 16A or 20A breaker, to account for inrush currents and ensure safety. Always consult local electrical codes and a qualified electrician for specific requirements.

User Avatar

AnswerBot

1mo ago

What else can I help you with?

Related Questions

What is the appropriate breaker size for a washing machine?

The appropriate breaker size for a washing machine is typically 15 to 20 amps. It is important to consult the manufacturer's specifications to ensure the correct breaker size for your specific washing machine model.


What size breaker do you need for 9000W at 440V 3 phase delta?

50amp but if considering the breaker cannot withstand starting current you need to size the breaker up.


Can a 3 phase 220 volt machine that usually plugs into a line with a twenty amp breaker can a thirty amp breaker be used instead?

No, you should not install a 30 amp circuit breaker to a machine which normally requires a 20 amp supply. The circuit breaker is protecting the wire to the machine. That wire is likely only rated for 20 amps, (# 12 awg). Therefore, a 30 amp breaker could allow too much current to go through the wiring to the machine and cause the wire to burn down. Replace the 3 phase 20 amp breaker with the same amperage breaker.


What is the purpose of the 110 V single phase breaker?

The job of a breaker is to limit the amount of current that is applied to the size of wire that is connected to the breaker.


What is the breaker size for a10kw 380v 3 phase power supply?

10amp


How do you size a phase converter to run a 3 phase welder?

From the nameplate on the welder you find the amperage that the welder draws at the three phase voltage that you are going to use. This amperage is used to size the phase converter. This amperage is also used to size the breaker that will feed the phase converter and wire size for the installation.


What size breaker for a 208 volt single phase motor that pulls 1.4 amps?

208 volts is not a common single phase voltage but you could just size your breaker to the capabilities of the conductor. 208 is normally a phase to phase voltage <<>> Many 230 volt motors can be connected to lower voltage supplies. These motors can be connected to supplies of 208 and 200 volts. The code requirement is that the 230 volt full load amperage of the motor be increased by 10% and 15% respectively for wire sizing and breaker selection. To answer the question you will need a two pole 15 amp breaker.


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 size of breaker is use for 75 horsepower 220 volts 3 phase induction motor?

500 amp breaker with 250 mcm cu conductors, NEC list this motor as drawing 192 amps X 250% = 480amps go to the next standard size of breaker which would be a 500.


What type of appliance would be use a two pole 50 amp breaker?

In North America this size breaker could be used on a welding machine. A range in the home would use a 40 amp two pole breaker.


Minimum breaker size 60 horsepower motor?

A 60 horsepower motor typically requires a minimum breaker size of 100 Amps for normal operation. It is important to consult the motor's specifications or a licensed electrician to ensure the correct breaker size for safe and efficient operation.


What size wire and breaker for a 240 volt single phase 20 kw electric furnace rated at 83.3 amps?

AWG #3 copper.