# What size wire do I need for AC?

## What size wire do I need for AC?

Wire Size Chart by Air Conditioner Capacity

Wire Size | AC Capacity | Max. Current |
---|---|---|

2.5mm2 (14 awg) | 1.5 Tons | 10.0 amps |

2.5mm2 (14 awg) | 2 Tons | 15.5 amps |

4.0mm2 (12 awg) | 2.5 Tons | 17.0 amps |

6.0mm2 (10 awg) | 3 Tons | 25.5 amps |

### What size wire do I need for 3.5 ton AC?

You’re probably looking at a 3.5 ton unit, so you’ll be in the 30-40A (10-8 AWG) range.

**What size wire is needed for a 3 ton AC unit?**

For a standard 3-ton residential air conditioner or heat pump, you’ll need a 20 amp breaker with 12-gauge wire. Air conditioners smaller than 3 tons often use a 15 amp breaker with 14-gauge wire, while larger units can use up to 60 amp breakers and 3-gauge aluminum wire or 4-gauge copper wire.

**What size wire do I need for 30 amp AC unit?**

For a maximum of 30 amps, you’ll need a wire gauge of 10. The most common household item that requires a 30 amp circuit is a central air conditioner.

## Which wire is best for AC?

2.5mm^2 wire is good for 18A inside a wall, so you are limited by the 15A sockets. A 220V 15A socket can deliver 3.3kW, and even if the voltage drops to 180V it can still do 2.7kW. Your aircon requires 1.55kW so there is enough power available.

### What wire size should be used for 1 ton AC?

Since the AC unit draws a current in between 9–12 Amps, it’s always recommend to do the wiring with a minimum of 2.5 sq.mm copper wires to avoid overheating, burning or short-circuit of the wiring system. If you use 1 sq.mm.

**What size wire do I need for A 2.5 ton AC unit?**

14 AWG

The correct wire size for this 2.5-ton AC unit is the 14 AWG with 20A ampacity. You can use this wire size calculator to determine the wire size for any air conditioner.

**How many amp breaker does A 3 ton AC unit have?**

Using the calculator above, we can see that an average 3-ton AC unit requires a breaker with at least 20.45A ampacity. That means the most appropriate choice of a breaker size for a 3-ton unit is a 25A breaker.

## What size wire do I need for a 2.5 ton AC unit?

### How many square feet can a 3 ton AC unit cool?

3-ton is equal to 36,000 BTU. If you apply the 20 BTU per sq ft rule of thumb, you can see that a 3-ton air conditioner cools about 1,800 square feet spaces.

**How far can you run 10 gauge wire for 30 amps?**

How far can you run 10 gauge wire for 30 amps? 10-gauge wire is usually used for short 30 amp runs. If you plan on going over 150 feet, 8-gauge wire or thicker will be needed.

**What size breaker do I need for a 1.5 ton AC unit?**

15 Amp Breaker

AC Breaker Sizes Chart (For 1.5-Ton To 5-Ton Units)

Air Conditioner Tonnage: | Max. Wattage (At 10 EER): | Min. Breaker Size |
---|---|---|

1.5 Ton | 1,800 Watts | 15 Amp Breaker |

2 Ton | 2,400 Watts | 15 Amp Breaker |

2.5 Ton | 3,000 Watts | 20 Amp Breaker |

3 Ton | 3,600 Watts | 25 Amp Breaker |

## How many amps does a 1.5 ton AC use?

Circuit Breaker(MCB Trip) activates during operation.

Capacity | Current (AMP) | Breaker size |
---|---|---|

0.75 ton | 5~6Amp | 16 Amp |

1.0 ton | 6~7Amp | 20 Amp |

1.5 ton | 8~10Amp | 32Amp |

2 ton | 15~16Amp | 40Amp |

### Which wire is best for 1.5 ton AC?

**Which wire is best for air conditioner?**

**What size wire do I need for A 24000 BTU air conditioner?**

110/120 Volt: Most mini split systems up to 12,000 BTUs can use this voltage. 208/220 Volt: 6000 BTU and higher….220V Mini Split Power Requirements.

220V Mini Split | Minimum Circuit Ampacity | Wire Size |
---|---|---|

18000 BTU | 18 Amp | 10 Gauge |

24000 BTU | 20 Amp | 10 Gauge |

30000 BTU | 22 Amp | 10 Gauge |

36000 BTU | 25 Amp | 10 Gauge |

## How many amps does a 3.5 ton central air conditioner use?

A 3 ton AC in the SEER range from 14 to 24 SEER will use 7.5 to 12.3 amps….How many amps does a 1-5 Ton ac unit draw?

Air Conditioner Capacity (Ton) | BTU | Amps |
---|---|---|

2.5 Ton | 30,000 BTU | 9.32 amps |

3 Ton | 36,000 BTU | 11.18 amps |

3.5 Ton | 42,000 BTU | 13.04 amps |

4 Ton | 48,000 BTU | 14.91 amps |

### What size wire do I need for a 4 ton AC unit?

10 AWG wire

An average 4-ton AC unit has a max. wattage of about 4,800W and requires a wire with a minimum ampacity of 27.28A. That means you will need to use a 10 AWG wire with 35A ampacity.

**Can I replace a 3 ton AC with a 4 ton?**

Proper size is a must. There is no reason for you to install a 4 ton if you can use a 3 ton. The low stage isn’t that much less than full capacity because of the unloading scroll systems.

**How much more efficient is a 18 SEER vs 16 SEER?**

An 18 SEER is around 12.5% more efficient than a 16 SEER. That means for every $100 you spend to cool your home with a 18 SEER, you’ll save about $12.50 more than the 16 SEER. A good rule of thumb, the higher the SEER the more you’ll save on your electric bill.

## Where can you find a wire gauge chart?

AWG Wire Sizes (see chart below)

### How to tell what gauge wire you have?

Read The Box or Packaging Label

**Which gauge wire should I be using?**

Lampy. Hi,i’m building eight led lights that i have calculated to be using 88.32 amps in total.

**What gauge electrical wire should I use?**

The electrical circuit must be properly protected by the right fuse or circuit breaker