# How many amps does a 10 kw heater use?

## How many amps does a 10 kw heater use?

10kw thermal bands are often 9.6 kw. Fixed space heating equipment are assumed to have a continuous charge, so without any other charge considered, there are 9,6240 x 1,25 or 50 amps.

## What size breaker do I need for a 10kw heat strip?

9.6Kw at 240 volts is 40 amperes. In my opinion, this is by NEC definition a continuous load so the conductors and the overcurrent device should be rated at 50 amps.

What size breaker do I need for a 10000 watt heater?

On a 10,000 watt /220v heater you’ll be drawing 45 amps. Since you should size your wire and your breaker 10% higher than your load, you will need 6 Gauge copper wire (or 4 gauge aluminum) with a 50 amp breaker. Anything smaller would be a potential fire hazard.

How do you size a breaker for a heater?

Multiply the value for current by 125 percent to determine the size of the breaker you need for the heater. A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps.

### What size breaker do I need for a 15 kW heater?

15kw is better than 60 Amps. If you are positive that is indeed #4 cable…. you must use a sub panel. The heat probably requires an 80A breaker and the air handler would need a 15A circuit.

### What size wire do I need for 20 kW heat strips?

For 20 KW, it would be 2-6/2 wire runs, and 2 60amp double pole breakers.

What size breaker do I need for a 15 kW furnace?

How many BTUs is a 5kw heat strip?

What Size Heat Strips are Available?

Heat Strip BTUs Installed Cost
5 kW 15,000 – 20,000 Ave. \$170
7.5 kW 20,000 – 30,000 Ave. \$180
10 kW 30,00 – 40,000 Ave. \$210
15 kW 50,000 – 55,000 Ave. \$270

## How many amps is 240 volts?

2400 Watts / 10 Amps = 240 Volts.

## How many heaters can you run on a 20 amp circuit?

A 20-amp breaker can support any combination of heaters up to a total of 3,840 watts. For example, using a single thermostat, the breaker could support two 1500-watt heaters or three 1000-watt heaters.

What size breaker do I need for 6000 watts?

If you have a heater that uses a total of 6000 watts in a 240 volt connection, you’ll need a minimum of 25 Amps. However, because the system will use all 25 Amps, it’s safer to get a circuit breaker of 30 Amps.

What size breaker do I need for 4000 watts?

20 Amps
If you have a heater that uses a total of 4000 watts in a 240 volt connection, you’ll need a minimum of 20 Amps. If it’s only a 120 volt connection, you’ll need a minimum of 35 Amps in the circuit.

### How many amps does a standard breaker have?

Breaker comes in some standard sizes. Sometimes the calculated breaker size is not available in market. So you can use the nearby rating ampere breaker.For example: breaker ampere from calculation is 45 amps and in market a 50 amps breaker is available. So we can use 50 amps breaker

### How big of a breaker do I need for a 125% motor?

MCP Breakers for Motors 125% or next larger size Standard breaker sizes are listed Page 70-74, 240-6 NEC Conduit Sizing 1. After circuits have been derated to get proper wire size use Table 3A if wires are all same size.

How to calculate breaker size, wire size and wattages?

not present BREAKER SIZE WIRE SIZE Based on copper THHN wire– inc MAXIMUM ALLOWABLE WATTAGE (80% of Breake 100 amp # 2 18,400 125 amp #1/0 23,000 150 amp #2/0 27,600 200 amp #3/0 36,800

Can a 30A breaker be used on a 240V circuit?

30A Breaker and 10 gauge wire can be used on 240V AC Supply. Breaker cannot be larger than ampacity of wire except for some loads like more loads. 120V can only be used for 120V. 120-277 can be used for 120V, 240V and 277V. 120V can’t be used on 240V circuit and vice versa. 15A, 120V can’t be used on 20A, 120V circuit.