WebMar 5, 2024 · Under Code-section 430.52 (C) (1) (c), we find an exception to the permission (s) granted for sizing an inverse time circuit-breaker, located in Table 430.52. We read: Where the circuit-breaker rating determined by T430.52 is not sufficient for the starting current (inrush current) experienced by the motor, the electrician is allowed to ... WebNov 22, 2015 · Even at 240 volts your total is 4800 watts. If it is a gas furnace (which it sounds like) then it is 120 volts so that is only 2400 watts. And that is from the breaker size not the actual current draw. The code …
How many amps does a 50hp motor 480v 3 phase pull? - Answers
WebAug 4, 2008 · If we assume the motor is only 50% efficient then, to produce 3 hp, it will have to be supplied with electrical power of at least 2 x 2.25 = 4.5 kW. Since Power P (Watts) = V (Volts) x I... WebDec 20, 2011 · The 50hp motor has a current rating of 55.4 amps if its power factor is 0.8. Another Answer: One horsepower (electric motor) is 746 watts, so 50 horsepower is 37.3 … how to say object in spanish
Motors - Horsepower and Amps of 230VAC and 460VAC 3 Phase …
WebFeb 21, 2024 · AS a retired electrician a motor is supposed to be fused at 125 percent of amp rating so 28 amps x 1.25 =35 amps OK,, Thanks guys. How many amps does a full load motor have? Electrical Motors – Full Load Amps Full load currents for 460 volts, 230 volts and 115 volts motors – single and 3-phase As a “rules of thumb” amps horsepower ... WebOct 30, 2024 · Let's see how to solve it: Rearrange the formula of hp to amps for the three-phase line-to-line system P = I × √3 × V × PF × η / 746. Apply the values (we can approximate the square root of 3 as 1.73 ), P = 0.5 × 1.73 × 100 × 0.8 × 95% / 746. The resulting power … WebJul 23, 2024 · Suppose you have a 115 HP outboard motor and a 12V battery. The amp draws for this would be: Step 1: The maximum output of your 115 Hp motor= 115 * 746 = 85790 W. Step 2: The Amp draw per hour for your motor = 85790 / 12 = 7149.167 Amp-hr. Step 3: The basic amp draw for your motor= 7149.167 / 60 = 119.153 Amp how to say obstacle