What is fuse rating that can be selected for a 10 hp motor?
Table of Contents
- 1 What is fuse rating that can be selected for a 10 hp motor?
- 2 How do you size a fuse for a motor?
- 3 What are motor rated fuses?
- 4 What is a fuse rating?
- 5 What is a motor rated fuse?
- 6 How many amps does a 10hp single phase motor draw?
- 7 How to calculate fuse size for 3 phase induction motor?
- 8 What are the electrical requirements for a fuse?
What is fuse rating that can be selected for a 10 hp motor?
Answer: 10 HP motor is invariably 3 phase motor, and in India, rated for 440 V. Current at full load will be 13.1 Amp. Fuse rating will be more than double of this to account for starting currents, and correct rating will be 30 Amps for wired fuses.
How do you size a fuse for a motor?
Motors should be fused with a time-delay fuse rated 175\% of the motor’s full load operating amperage, 250\% of the full load operating amperage if a circuit breaker is used. The wire to a motor must be rated to carry 25\% more amperage than the motor draws when operating at full load.
What size breaker do I need for a 10 hp motor?
Full Load Current: Three Phase AC Motors
| Motor Horsepower | Size Breaker | |
|---|---|---|
| 5 | 230V 460V | 15 15 |
| 7-1/2 | 230V 460V | 40 30 |
| 10 | 230V 460V | 50 30 |
| 15 | 230V 460V | 70 40 |
What are motor rated fuses?
Motor circuit protection fuse-links have a dual current rating, consisting of a continuous current rating and a rating relating to the operational characteristics. The letter ‘M’ separates these two ratings, for example, 20M32.
What is a fuse rating?
VOLTAGE RATING:The voltage rating, as marked on a fuse, indicates that the fuse can be relied upon to safely interrupt its rated short circuit current in a circuit where the voltage is equal to, or less than, its rated voltage.
What size wire do I need for a 10 hp motor?
Womack Data Sheet 78: Wire Size and Fuse Ratings for 3-Phase Induction Motors
| HP | Speed RPM | 230-Volt Service |
|---|---|---|
| 7-1/2 | 1,800 | 40 |
| 7-1/2 | 3,600 | 40 |
| 10 | 1,200 | 60 |
| 10 | 1,800 | 60 |
What is a motor rated fuse?
How many amps does a 10hp single phase motor draw?
Full-Load Current in Amperes Single-Phase Alternating Current Motors
| HP | 115V | 230V |
|---|---|---|
| 5 | 56 | 28 |
| 7-1/2 | 80 | 40 |
| 10 | 100 | 50 |
| The voltages listed are rated motor voltages. The listed currents are for system voltage ranges of 110 to 120 and 220 to 240. |
What amperage rating do I need to fuse a motmotor?
Motors should be fused with a time-delay fuse rated 175\% of the motor’s full load operating amperage, 250\% of the full load operating amperage if a circuit breaker is used. The wire to a motor must be rated to carry 25\% more amperage than the motor draws when operating at full load. This amperage rating is listed on most motors.
How to calculate fuse size for 3 phase induction motor?
Fuse rating Calculation: Let we calculate the fuse sizing for 5.5kW 415V three-phase induction motor is planned to run at 0.86 power factor. Fuse rating = 1250 x 5.5 / (1.732 x 415 x 0.86) = 11.1 A Hence, we can choose 16A Fuse for 5.5kW motor.
What are the electrical requirements for a fuse?
Following are some of the requirements. UL ampere rating tests are conducted at 100\%, 135\%, and 200\% of rated current. The fuse must carry 100\% of its ampere rating and must stabilize at a temperature that does not exceed a 75ºC rise. The fuse must open at 135\% of rated current within one hour.
How to calculate fuse rating for a circuit?
For individual circuit, the fuse rating should be 1.5 times of the full load current. For example, let we calculate fuse rating for a 230 V, 0.8 pf light panel and individual circuits and which contains 10 number of 400A mercury vapour lighting. Fuse rating for Panel: Total connected load = 10 x 400 W = 4000 W