What can you run on a 30 amp sub-panel?

The amount of current that is required for the connected loads can only be supported by a 30 Amp sub-panel. The maximum quantity of branch circuits can be determined with a load calculation. Two 15amp breakers or one 15amp and one 20amp can be used on a 30amp circuit.

How many circuits can be on a 30 amp sub-panel?





To summarize the last 8 comments: There is nothing wrong with having 4 15amp circuits in a sub-panel that has a 30 amp main breaker. You can use max 15 amp on any one circuit, and max 30 amp all combined.

How many amps does an EV charger draw?

Most EVs can take in about 32 amps, adding around 25 miles of Range Per Hour of charging, so a 32-amp charging station is a good choice for many vehicles.

How many amps does a Level 3 EV charger use?

Different Levels of EV Chargers Comparison Table

EVSE Level Locations Power Range (Amps)
Level 1 Charger Residential, Public 8-20 Amps
Level 2 Charger Residential, Commercial, Public 12-80 Amps
Level 3 Charger Specialized Public or Government-Mandated Areas 100+ Amps

How many amps can you put on a 30 amp breaker?





If breaker is rated 30 amp, then 30 x . 8 = 24 amp safe maximum.

What type of wire do I need for a 30 amp breaker?

30 AMP Wire Size

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.

How do you size a subpanel?

Subpanel Coverage Area



Measure the length and width of each room and multiply them together to find the square footage of the room. Add up the square footage of all of the rooms to find the total square footage. Multiply the total square footage by 3 (watts) to complete the calculation.

Does a subpanel need a ground rod?

Yes, any sub panel outside of the main building requires it’s own ground rod and a ground wire back to the main building. And yes, a sub panel in the same building as the main does not need a ground rod – only the ground wire.

Can 12 gauge wire handle 30 amps?

You should not use a 30-amp circuit breaker on a 12-gauge wire. The circuit breaker installed on a circuit is of a specific size to protect a certain wire gauge. A larger breaker on a thinner wire will allow more current over the wire before tripping.

How many amps does a Nissan Leaf draw?



100% Electric

Electric Vehicles Models Electric Car Maximum Power Acceptance (kW) Charging Station Power of 7,7kW Charging Time with 32A @ 240V (Hour)
Nissan Leaf 2017 3.3 9.1
Nissan Leaf 2018 S 3.3 12.1
Nissan Leaf 2018 6.6 6.1
Smart Car 3.3 5.3

What size breaker do you need for a car charger?

For Level 1 charging, either a 15 or 20 amp single-pole circuit breaker at the beginning of the circuit, located in the meter-panel breaker section, will meet this requirement.

Does EV charger need dedicated circuit?

But EVs do like to draw as much power as possible for charging, so it is most helpful to have a charging outlet on a dedicated circuit, so that an additional load from some other device doesn’t trip your breaker when the EV is already drawing the maximum.

Does an EV charger need its own RCD?

Yes, regulation 722.531. 3 requires that an RCD (Max 30mA) supplies a car charger and the RCD shall disconnect all live conductors. This includes the Neutral therefore the single-pole RCBOs should not be used for this application.

Can I install my own EV charger?



Can I install my EV charging point myself? No, unless you’re an electrician with experience in installing EV chargers, don’t do it yourself. Always hire an experienced and certified installer.

Can you charge an EV on a 240V outlet?

Fortunately, for those who have an existing 240V outlet currently occupied by an appliance or EV charger, there is a smarter and more affordable solution than to install a new circuit! The 240v Smart Splitter by NeoCharge plugs into an existing 240V outlet to create two outlets from one.

Can I use my dryer outlet to charge my EV?

If you plug in the dryer outlet splitter and put the dryer on the primary outlet, it gets power whenever you need it and pauses EV charging. Once the load of laundry is done, it will switch over and let the car charge.

How much does it cost to install a 240 volt outlet?

Installing a 220/240-Volt Outlet



Average costs for a journeyman electrician to install a 220/240-volt outlet is about $300.

What voltage do most electric cars use?

Level 1. Level 1 charging uses a standard 120-volt plug. Today, new electric cars come with portable charging equipment to allow you to plug in to any 120-volt outlet.

What is a Level 3 charger?

Level 3 charging is the fastest type of charging available and can recharge an EV at a rate of 3 to 20 miles of range per minute. Unlike Level 1 and Level 2 charging that uses alternating current (AC), Level 3 charging uses direct current (DC).

What voltage are Tesla batteries?

Tesla has reduced the energy capacity of the battery pack in the new Model S

Battery – High Voltage Specifications
Type Liquid-cooled lithium ion (Li-ion)
Nominal Voltage 450 V DC
Temperature Range Do not expose Model S to ambient temperatures above 149° F (65° C) or below -22° F (-30° C) for more than 24 hours at a time.