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Dedicated Electrical Circuits Installed to Code

Chapter 03 · Circuits & Dedicated Lines

Dedicated Electrical Circuits Installed to Code

Licensed, permitted circuit installation for appliances, EV chargers, hot tubs, and more.

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What a dedicated electrical circuit actually does

A dedicated electrical circuit serves one appliance and one appliance only. No shared load, no other outlets on the line. That design matters because high-draw equipment like refrigerators, dryers, air conditioners, and EV chargers pull more current than a standard branch circuit is rated to carry. Run them on a shared circuit and you get nuisance tripping at best, overheating at worst. All Electric installs dedicated circuits to NEC code and pulls the permit every time. CO License #ME.0600978, fully insured, and backed by a 1-year labor warranty. Call (720) 951-4619 to schedule.

The cost of a dedicated circuit installation varies based on how far the new circuit needs to run from your breaker panel, what gauge wire the appliance requires, whether the panel has open slots or needs a breaker upgrade, and what's inside the walls between point A and point B. Older homes with finished walls and tight panel boxes cost more to work in than new construction with open framing. Every job is different, contact All Electric for an accurate estimate. Financing options are available for larger projects.

Appliances that require a dedicated circuit

If the nameplate says 20 amps or more, it probably needs its own line.

01

Kitchen Appliances

Refrigerators, dishwashers, microwaves, and garbage disposals all pull enough current to warrant their own circuit. Most modern kitchens require at least two 20-amp small-appliance circuits by code, separate from major appliance lines.

02

HVAC and Air Conditioning

Central AC units and window AC units rated above 1,000 watts need a dedicated circuit. The NEC requires it. Running AC on a shared line trips breakers under load and stresses the wiring over time.

03

EV Chargers

A Level 2 home EV charger installation draws 32 to 48 amps continuously. That's a 240-volt dedicated circuit, properly sized wire, and a breaker rated for the load. No exceptions on this one.

04

Hot Tubs and Spas

Most hot tubs require a 240-volt, 50-amp dedicated circuit with a GFCI breaker. The disconnect must be located within sight of the tub. This is one of the more code-specific installs we do.

05

Laundry Equipment

Electric dryers need a 240-volt, 30-amp dedicated circuit. Washing machines need a separate 20-amp, 120-volt circuit. Running either on a shared line is a code violation in most jurisdictions.

06

Home Offices and Workshops

Laser printers, table saws, air compressors, and welders all draw heavy startup current. A dedicated 20-amp or 30-amp circuit keeps the equipment running without nuisance trips and protects the rest of the house.

Code Requirements

What the NEC requires for dedicated circuits

These aren't suggestions. They're what an inspector checks.

  • Correct wire gauge for the load

    A 20-amp circuit needs 12-gauge wire minimum. A 30-amp circuit needs 10-gauge. Undersized wire is a fire hazard, and it's one of the most common mistakes in DIY electrical work.

  • Properly rated breaker

    The breaker must match the wire gauge and the appliance's rated amperage. A 15-amp breaker on a 20-amp circuit won't protect the wiring. A 30-amp breaker on 12-gauge wire absolutely will not.

  • GFCI protection where required

    Hot tubs, outdoor circuits, garage circuits, and bathroom circuits require GFCI protection by code. We install GFCI breakers or GFCI outlets at the correct points in the circuit, not just where it's convenient.

  • Permit and inspection

    New circuit installation requires a permit in most jurisdictions. We pull it, we schedule the inspection, and we don't cut corners to skip that step. Unpermitted electrical work can void homeowner's insurance and flag at sale.

How It Works

How All Electric installs a new circuit

The process is straightforward. What takes time is doing it correctly.

  1. Step 1: Assessment and sizing

    We identify the appliance's actual load requirements, check the panel for available capacity and open slots, and determine the best routing for the new circuit run. If the panel's full or undersized, we'll tell you before we start.

  2. Step 2: Permitted installation

    We pull the permit, run the correct gauge wire, install the breaker, and connect the circuit at both ends. Everything is secured, labeled, and protected according to the NEC and local amendments.

  3. Step 3: Inspection and sign-off

    The inspection confirms the work meets code. Once it passes, you've got documentation that the circuit was installed correctly, which matters for insurance and for the next owner of the home.

Signs your current wiring can't handle the load

kitchen appliances work, professional service in Denver, CO
Most homeowners notice the symptoms before they understand the cause. A breaker that trips every time the microwave and toaster run at the same time isn't malfunctioning. It's doing exactly what it's supposed to do. The problem is that two appliances with high draw shouldn't share a circuit in the first place. Other signs worth paying attention to: lights that dim when a large appliance kicks on, outlets or covers that feel warm to the touch, a burning smell near the panel or at outlets, and appliances that run hot or cycle off unexpectedly. None of those are normal. If you're seeing any of these patterns, an electrical inspection is the right first call. It's a lot cheaper than the alternative. All Electric has been diagnosing circuit problems across the Front Range for 9 years, and we'll tell you honestly whether a dedicated circuit installation is what you need or whether something else is going on. We don't upsell work that isn't necessary.

Why homeowners trust us

Key facts about dedicated circuit installation

All Electric, CO License #ME.0600978-4.9 stars across 468 Google reviews.

Every dedicated circuit we install is permitted, inspected, and covered by a 1-year labor warranty.
  • Licensed in Colorado

    CO License #ME.0600978, Electrical Contractor qualified by Master Electrician

    Verify with the state
  • Fully insured

    Every job, every technician, every visit

  • 1-year labor warranty

    Covers all installation work on dedicated circuits

  • Permits pulled every time

    We don't skip the inspection step, unpermitted work is a liability

Daniel VargasOwner · Family-owned · Denver Local 4.9 · 468 Google reviews

Dedicated circuit questions, answered

Not answered here? Call (720) 951-4619 and ask the electrician.

How can I tell if a circuit is already dedicated?
Go to your breaker panel and look at the label for the breaker that controls the outlet in question. If it says something like 'refrigerator' or 'dryer' and only that one receptacle is on that breaker, it's dedicated. The cleaner way to confirm: flip the breaker and test every outlet in the house with a plug-in tester. A dedicated circuit will kill only one outlet, not a whole area.
Does central air conditioning need a dedicated circuit?
Yes. Central AC units draw significant startup current, sometimes 2 to 3 times their running amperage in the first few seconds. That surge is what trips shared circuits. The NEC requires a dedicated circuit for central AC, and most window units above 1,000 watts also need one. The circuit must be sized to the unit's nameplate amperage, not just the running draw.
What wire gauge does a dedicated circuit require?
It depends on the amperage rating of the circuit. A 15-amp circuit uses 14-gauge wire. A 20-amp circuit requires 12-gauge. A 30-amp circuit (common for electric dryers) requires 10-gauge. A 50-amp circuit (hot tubs, some EV chargers) requires 6-gauge. Running undersized wire for the breaker rating is a code violation and a fire risk. This is one area where getting it right matters more than saving an hour of labor.
Can I add a dedicated circuit myself without a permit?
You can, but you shouldn't. Unpermitted electrical work can void your homeowner's insurance policy, create liability if a fire or injury occurs, and flag during a home inspection when you sell. In Colorado, electrical work beyond simple device replacements requires a licensed contractor to pull a permit. A properly permitted circuit has documentation an inspector signed off on. That paper trail has real value.
What happens if my panel doesn't have room for a new circuit?
We check the panel first. If there are no open slots, we have a few options: install a tandem breaker if the panel supports them, add a sub-panel to expand capacity, or recommend a full panel upgrade if the service is undersized for your home's current load. We'll tell you what we find and what the options cost before any work starts.
How long does it take to install a dedicated circuit?
A straightforward dedicated circuit installation in a home with accessible walls and an open panel slot typically takes two to four hours. Longer runs through finished walls, older homes with knob-and-tube or aluminum wiring, and full panels all add time. The permit and inspection scheduling is separate from the installation itself. We'll give you a realistic timeline when we assess the job.

Schedule a dedicated circuit installation

All Electric, CO License #ME.0600978, serving the Front Range for 9 years.

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