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3600 rpm
Answer for USA, Canada and countries running a 60 Hz power supply service. 230 to 240 volts on any size two pole breaker on single phase installations. The voltage varies from location to location from different utility power companies.
A breaker is based on wire size, as the breaker protects the wire and not the load. This is a voltage drop question. A #3 copper conductor will limit the voltage drop to 3% or less when supplying 60 amps for 110 feet on a 110 volt system.
The breaker protects the wiring not the boiler. 12,000 watts at 240 volts will require 50 amps. So, you will need a 60 amp breaker using AWG# 6 wire on a dedicated circuit.
You can. Using these size breakers in a 60 amp sub panel might be pushing the limit for breaking the sub panels feeder breaker. The breaker feeding the sub panel will have to be no bigger than 60 amps because of the main bus bar capacity of the sub panel. It would be better to install a 100 amp sub panel and then there would be a bit of a buffer and you will have the ability to add additional small load circuits.
Need motor voltage, amperage and phase to give you an anwer.
You need a 60 amp breaker.
60
208-230 Volts 1/3 Phase 60 Cycles Breaker Size 50 / 40 Amps Run Amps 39/31
A breaker is sized by the conductor that is connected to it but also the load that is connected to the breaker. There are some cases such as motor loads where the breaker has to be 250% of the motors full nameplate amperage.A #6 aluminium conductor with an insulation factor of 90 degrees C is rated for 55 amps.
Read the specification plate on the motor to determine the amount of current that the motor uses, as well as the voltage and phase. Most likely, it will be a 3 phase motor, so you can't simply connect it to your house wiring, but without sufficient information, it is impossible to tell you all of the specifics. <<>> The code book rates the amperage of a three phase 40 HP motor by different voltages. at 200 volts - 120 amps, 230 volts - 104 amps, 460 volts - 52 amps and 575 volts - 52 amps. A breaker for a motor has to be sized to 250% of the motors full load amps. Also the wire size for a motor has to be 125% of the motor full load amps.
motor= 2 h.p 220v=60 hz single phase single capistor 36 solat i have no formula help me how i rewind motor
Wire sizing is based on the amperage needed by the load. The equation used to find amperage when the HP is shown is; A = HP x 746/1.73 x V x %eff x pf. Amps = 25 x 746 = 18650/1.73 x 240 x .87 x .87 = 18650/314 = 60 amps. A standard motor's efficiency between 5 to 100 HP is .84 to .91. A standard motor's power factor between 10 to 100 HP is .86 to .92. Motor feeders have to be rated at 125% of the motors full load amperage. 60 x 125% = 75 amps. A #4 copper conductor with an insulation rating of 75 or 90 degrees C are both rated at 85 amps. The breaker has to be 250% of the motors full load amperage 60 x 250% = 150 amps The breaker will be a three pole 150 amp breaker connected to three #4 copper conductors to operate a 25 HP 240 volt three phase motor.
3600 rpm
Answer for USA, Canada and countries running a 60 Hz power supply service. 230 to 240 volts on any size two pole breaker on single phase installations. The voltage varies from location to location from different utility power companies.
The 225 amps is the secondary output amperage. Look on the machines nameplate to find the input amperage. It is that amperage that is needed to size the feed wire and there the breaker size. When you find that amperage you may want to re question the breaker size.
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