Dedicated Circuits

Dedicated Circuits for Commercial Equipment in the Phoenix Valley

A dedicated circuit serves one piece of equipment and nothing else. It sounds like a small distinction. In practice, equipment that shares a circuit is the equipment that trips, fails, and runs up service calls. At The Wire Guy Electric, we design and install dedicated circuits for commercial equipment across the Valley.

When Equipment Needs Its Own Circuit

• Anything with a compressor or a motor. Refrigeration, walk-ins, air compressors, and HVAC draw a large surge at startup that drags voltage down for everything sharing the circuit.
• Commercial kitchen equipment. Ovens, fryers, warmers, dishwashers, and ice machines.
• Medical and dental equipment, including autoclaves and imaging.
• Salon equipment, dryers and processors that pull hard and continuously.
• Server racks, network gear, and point of sale. These are sensitive to what everything else on the circuit is doing.
• Shop machinery and anything with a duty cycle.

What Sharing a Circuit Costs You

Two things go wrong when equipment shares a circuit it should not.

The first is nuisance tripping. Total draw exceeds the breaker when two things happen to run at once, and staff learn to reset the breaker as a routine rather than report it.

The second is quieter and more expensive. Motor startups cause voltage dips, and sensitive electronics on the same circuit see those dips. That shows up as equipment that reboots, corrupts data, or simply fails early for no visible reason. Nobody connects it back to the compressor cycling in the back room, but that is often exactly what is happening.

How We Size It

Off the equipment nameplate, every time. The nameplate gives the minimum circuit ampacity and the maximum overcurrent protection, and that is what the conductor and breaker get sized to, not a rule of thumb.

Continuous loads need additional headroom. Long runs need conductor sizing that accounts for voltage drop, which matters more than people expect in a warehouse. And in Arizona, ambient temperature derating is real: a conductor run through an uninsulated roof space is not operating at the temperature the base table assumes.

Related Services

• Commercial Electrical Service and Maintenance
• Commercial Electrical Upgrades
• Tenant Improvement Electrical
• Commercial Outlets and Switches

Plan a Dedicated Circuit

Bringing in new equipment, or tired of resetting the same breaker? Request a free estimate and we will size it correctly the first time. Arizona ROC #365306. Serving Mesa, Scottsdale, Gilbert, Chandler, Tempe, Phoenix, Queen Creek, Paradise Valley, and Fountain Hills.