120V Induction Range Circuit
Impulse Cooktop: Circuit & the Shared-Circuit Verdict
The circuit the Impulse Cooktop needs, sized from the 15A wall draw the manufacturer states (never the induction burner kW), with the NEC shared-circuit verdict.
Circuit Spec
| Plug / voltage | NEMA 5-15P (120V or 240V) |
| Wall / charge draw (manufacturer-stated) | 15 A |
| Share a general-purpose 15A circuit? | Needs a dedicated circuit |
| Share a general-purpose 20A circuit? | Needs a dedicated circuit |
| Dedicated circuit (recharge under 3 h) | 15A / #14 Cu |
| Dedicated circuit (continuous, 3 h+ recharge) | 20A / #12 Cu (18.75A design) |
| Equipment ground | #14 Cu |
| Service-load contribution | ~1.44 kVA (vs 8 kW for a 240V range) |
| Battery | ~3 kWh |
| Safety listing | UL 858 |
The wall draw is the manufacturer-stated value; the breaker, wire, ground, verdict, and service-load figure derive from it. The rating plate on your unit governs.
Models
Representative models in this line: Impulse Cooktop 30", Impulse Cooktop 36". The circuit spec above applies across the line as published by Impulse; confirm against the rating plate on the specific unit.
Can It Share a Circuit?
A drop-in cooktop is FIXED (fastened or otherwise secured at a specific location, the NEC Art. 100 definition), so on a general-purpose / multi-outlet circuit the stricter NEC 210.23(B)(2) caps its rating at 50% of the branch: 7.5A on a 15A circuit, 10A on a 20A. The cord-and-plug connection does not change that; “fastened in place” is about the mounting, not the plug. On a 20A circuit: 15 A exceeds the 10 A cap for a general-purpose / multi-outlet 20 A circuit (20 A x 50% = 10 A), so it is NOT permitted to share a 20 A circuit; it needs a dedicated individual branch circuit.
Source
Circuit data transcribed from the manufacturer: Impulse Cooktop specification, accessed 2026-07-11. Sourced from the manufacturer's product page rather than a spec sheet PDF.
The Impulse Cooktop (Impulse Labs) is a four-burner 30/36-inch cooktop with a 3 kWh LFP battery, certified to UL 858. It runs on 120V/15A (NEMA 5-15P) OR a 240V circuit; the burners deliver up to 10,000 watts of peak power per burner from the battery, but the wall side is a 15A branch. Impulse's own pages do not print a continuous wall-draw figure below the 15A breaker rating, so none is invented here.
Frequently Asked Questions
Can the Impulse Cooktop share a circuit?
On a general-purpose / multi-outlet circuit, 15 A exceeds the 7.5 A cap for a general-purpose / multi-outlet 15 A circuit (15 A x 50% = 7.5 A), so it is NOT permitted to share a 15 A circuit; it needs a dedicated individual branch circuit. On a 20A circuit: 15 A exceeds the 10 A cap for a general-purpose / multi-outlet 20 A circuit (20 A x 50% = 10 A), so it is NOT permitted to share a 20 A circuit; it needs a dedicated individual branch circuit. The rule: NEC 210.23(B)(2) (utilization equipment fastened in place, 50% of a general-purpose / multi-outlet branch circuit); a drop-in cooktop is a fixed appliance (NEC Art. 100), so the 50% cap governs, not the 80% (B)(1) not-fastened rule.
What breaker and wire does the Impulse Cooktop need?
Size it from the 15A wall / charge draw off the rating plate, never the induction burner kW (those peaks come from the battery). On a dedicated individual branch circuit it takes a 15A breaker on #14 copper with a #14 copper equipment ground. If the battery recharge runs 3 hours or more it is a continuous load and the circuit is sized to 125% (NEC 210.20(A)): 15 x 1.25 = 18.75A, a 20A breaker on #12 copper.
Does the Impulse Cooktop need a dedicated circuit?
At its full 15A wall draw it exceeds the 7.5A shared-circuit cap for a 15A circuit (fastened-in-place 50%, NEC 210.23(B)(2)), so it needs a dedicated individual branch circuit (it cannot share a 20A circuit either, 10A cap). Impulse states a 15A breaker minimum for both the 120V and 240V use cases and that the panel does not need to be upgraded. It does not state 'dedicated'; it plugs directly into an existing 120V outlet. As a drop-in (fixed / fastened-in-place) cooktop its shared-circuit rating is capped by NEC 210.23(B)(2) at 50% (7.5A on a 15A circuit, 10A on a 20A), so its 15A draw exceeds the shared cap on both a 15A and a 20A general-purpose circuit: it wants a dedicated branch circuit to itself, not a shared one.
How much does the Impulse Cooktop add to my service load?
About 1.8 kVA (15A x 120V), just over the 1-3/4 kW Table 220.55 threshold, so Note 3 applies the Column A single-unit 80% demand factor: 1.8 x 0.80 = 1.44 kW. That is far below the 8 kW Column-C demand a conventional 240V range gets, which is why it fits a service that could not take another 240V range.
Check the Circuit
Confirm against your unit's rating plate: enter the wall / charge draw and the circuit rating to get the shared-circuit verdict and the dedicated wire and breaker.
Other 120V Induction Ranges
Copper Charlie Induction Range
12A wall draw. Shares at the cap (no headroom) on a shared 15A.
Electra Induction Stove
15A wall draw. Needs a 20A or dedicated circuit on a shared 15A.
Breaker & Wire Chart
Every unit on one table: wall draw, shared verdict, dedicated breaker and wire.
120V vs 240V
The plug-in class next to a conventional 240V range: circuit, wiring, and recovery.
Related Tools
What Size Breaker Do I Need
Breaker sizes for common loads, worked from the nameplate out.
Wire Size for Appliances
Standard circuit and wire per appliance, including the conventional electric range.
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Typical running amps for common household appliances and the circuit each needs.
Load Calculator (NEC 220)
Can the panel handle it? NEC 220.82 sizing and the 220.87 existing-load check.