What size breaker do I need for a 30 hp motor?
Full-Load Current and Circuit Protection Data for Three-Phase AC Motors
|Motor Horsepower||Breaker Size|
|20||230 V 460 V||100 50|
|25||230 V 460 V||100 50|
|30||230 V 460 V||125 70|
|40||230 V 460 V||175 100|
How do I calculate what size wire I need?
Wire Sizing Chart and Formula
- Calculate the Voltage Drop Index (VDI) using the following formula:
- VDI = AMPS x FEET ÷ (% VOLT DROP x VOLTAGE)
- Determine the appropriate wire size from the chart below.
What size breaker do I need for a 25 hp motor?
Full Load Current: Three Phase AC Motors
|Motor Horsepower||Size Breaker|
|10||230V 460V||50 30|
|15||230V 460V||70 40|
|20||230V 460V||100 50|
|25||230V 460V||100 50|
Will 6 gauge wire fit in a 30 amp breaker?
RULES OF THUMB
“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”
How many amps does a 3 HP single phase motor draw?
AMP DRAW BASED ON HORSEPOWER
|HP||1 Phase Amps||3 Phase Amps|
|115 volt||575 volt|
How much load can a 1 sq mm wire take?
Current Carrying Capacity: 11 A 1.0 Sq.mm Finolex Electrical Wire
|Current Carrying Capacity||11 A|
|Packing Type||Carton Box|
How much load can a 2.5 mm cable take?
Choosing the correct size cable
|Conductor Size||Current||Maximum power (Watts)|
|1.25 mm2||13 amps||Up to 3120 Watts|
|1.5 mm2||15 amps||Up to 3600 Watts|
|2.5 mm2||20 amps||Up to 4800 Watts|
|4.0 mm2||25 amps||Up to 6000 Watts|
How far can I run 12 2 wire?
The total circuit would be about 60 -70 feet in length. It would only be supplying about 5 outlets and one light. It would be a light load, running small things, no heaters or med/large equipment. #12 provides reasonable performance up to about 100′ with general loads like you describe.
How far can you run 10 2 wire?
The size of the wire you run to your shed depends on how far away it is and whether you use 120V or 240V. If your shed is 50 feet from your breaker box, you can use 10/2 AWG UF-B wire for a 120V circuit up to 20A. This will allow you to run multiple machines at the same time while providing light to your shed.