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API · /motorfla-api

Electric Motor FLA API

healthy 4,688 Subscribers

Electric-motor electrical maths as an API, computed locally and deterministically — the full-load-current, NEC-sizing and starting-current numbers an electrician, panel designer or estimator runs for every motor circuit. The full-load-amps endpoint gives the motor current from its power, voltage and phase: FLA = (output ÷ efficiency) ÷ (√3 × volts × power factor) for three-phase (drop the √3 for single-phase) — a 10 hp, 460 V, three-phase motor at 90 % efficiency and 0.85 power factor draws about 12.2 A — and it also returns the input kW and kVA. The sizing endpoint applies NEC Article 430 from the full-load current: branch-circuit conductors at 125 %, overload protection at 115–125 % by service factor, and branch-circuit short-circuit/ground-fault protection up to 250 % for an inverse-time breaker or 175 % for a time-delay fuse — the larger protection lets the inrush pass while the overload guards the windings. The starting endpoint gives the locked-rotor (inrush) current, about six times full-load for an across-the-line start, the figure that sets the voltage dip and why soft starters and VFDs exist. Everything is computed locally and deterministically, so it is instant and private. Ideal for electrical-design and estimating tools, panel-builder and field utilities, and engineering calculators. Pure local computation — no key, no third-party service, instant. Calculated values — use the NEC FLC tables for code work. 3 compute endpoints. For general three-phase power use a three-phase API; for conduit fill a conduit API.

#motor #electrical #nec #full-load-amps #hvac #developer-tools
api.oanor.com/motorfla-api
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Machine-readable spec so AI agents can integrate this API.

/api/motorfla-api/openapi.json
/api/motorfla-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
80 ms
Server probes · 24h
Subscribers
4,688
active
Total calls
0
last 7 days
status Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,800 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 5,800 calls/month
  • 2 req/sec
  • FLA + NEC sizing + starting
  • No credit card
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Starter

€11.60 /month

  • 58,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 58,000 calls/month
  • 6 req/sec
  • 1φ/3φ, efficiency & power factor
  • Email support
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Pro

€37.20 /month

  • 243,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 243,000 calls/month
  • 15 req/sec
  • Panel-design & estimating pipelines
  • Priority support
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Mega

€114.50 /month

  • 1,210,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,210,000 calls/month
  • 40 req/sec
  • Contractor & OEM scale
  • Dedicated SLA
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Related APIs

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Sauna Heater API

Sauna-heater sizing maths as an API, computed locally and deterministically — the heater-power, stone-mass and electrical numbers a sauna builder, installer or wellness retailer sizes a cabin with. The heater-size endpoint gives the power: about 1 kW per 1.3 m³ of well-insulated cabin (room volume ÷ 1.3), with cold surfaces the heater must also warm — a glass door or wall, bare stone, tile or uninsulated timber — adding roughly 1.2 m³ of equivalent volume per square metre, so a 10 m³ room with a 2 m² glass door wants about a 10 kW heater, rounded up to the next standard size. The stones endpoint gives the recommended sauna-stone mass, roughly 10–20 kg per kW (more stones for a softer, steamier löyly, fewer for a faster warm-up), with a note to use proper peridotite/olivine stones stacked loosely. The electrical endpoint gives the current the resistive heater draws — power ÷ voltage for single-phase or ÷ (√3 × voltage) for three-phase, since most heaters above ~4 kW are wired three-phase to keep the per-leg current and cable size down — to size the breaker and the dedicated RCD-protected circuit. Everything is computed locally and deterministically, so it is instant and private. Ideal for sauna and wellness retailers, home-improvement and DIY tools, and HVAC/electrical estimating apps. Pure local computation — no key, no third-party service, instant. Estimates — follow the heater maker's chart and local wiring code. 3 compute endpoints. For steam-boiler maths use a boiler API; for room heat loss a U-value API.

api.oanor.com/saunaheater-api

Cable Tray Fill API

Cable-tray fill engineering maths as an API, computed locally and deterministically from NEC Article 392 — the allowable-fill, single-layer and tray-width numbers an electrician, estimator or designer runs for a tray run. The fill endpoint applies NEC 392.22(A)(1) Column 1 for multiconductor power and lighting cables no larger than 4/0 in a ladder or ventilated-bottom tray: the total cable cross-sectional area is capped at the tray width × 7/6, so a 12-inch tray allows 14 in² — sum every cable's csa, get the percentage fill and whether it is within code, with the spare area left. The large-cable endpoint covers cables 4/0 and larger, which must lie in a single layer with the sum of their diameters not exceeding the tray width — no stacking — so it returns the spare width and the code check. The min-width endpoint inverts the rule to size the tray: minimum width = cable area × 6/7, rounded up to a standard 6/9/12/18/24/30/36-inch width, leaving room for spare capacity and future cables. Everything is computed locally and deterministically, so it is instant and private. Ideal for electrical-design and estimating tools, industrial and OSP utilities, and code-check calculators. Pure local computation — no key, no third-party service, instant. Ladder/ventilated trays; solid-bottom and mixed fills use the other NEC columns, and ampacity must be derated for fill. 3 compute endpoints. For conduit and box fill use a conduit API.

api.oanor.com/cabletray-api

Conduit Fill API

NEC conduit-fill and box-fill maths as an API, computed locally and deterministically — the electrical-code calculations an electrician or estimator does on every run. The conduit-fill endpoint takes a set of conductors (as size:count pairs, e.g. 12:3,10:2) and a conduit trade size and returns the conductor cross-sectional area, the conduit's internal area, the fill percentage and whether it stays within the NEC Chapter 9 limit — 53 % for a single conductor, 31 % for two, 40 % for three or more — so nine #12 THHN fill a half-inch EMT to 39 % (legal) but ten do not. The box-fill endpoint applies NEC 314.16(B): each conductor adds its free-space allowance (2.00 in³ for #14, 2.25 for #12, and so on), a device yoke counts as two, internal cable clamps as one, and all equipment grounds together as one — all at the largest conductor's volume — to give the minimum junction-box size, checked against a box volume if you give one. Uses the THHN/THWN and EMT areas from NEC Chapter 9. Everything is computed locally and deterministically, so it is instant and private. Ideal for electrical-contractor, estimating, inspection and electrician app developers, conduit and box-sizing tools, and apprentice training. Pure local computation — no key, no third-party service, instant. Imperial: square inches and cubic inches. Live, nothing stored. 2 compute endpoints. Always verify against the adopted code edition — this is an estimating aid, not an inspection.

api.oanor.com/conduit-api

Three-Phase Power API

Three-phase AC power maths as an API, computed locally and deterministically. The power endpoint solves the three-phase power triangle from the line-to-line voltage, the line current and the power factor — the apparent power S = √3·V_L·I_L in volt-amperes, the real power P = S·cosφ in watts, the reactive power Q = S·sinφ in VAR and the phase angle — or works backwards to find the line current a load draws for a given real power. The wye endpoint gives the star-connection relationships, where the line-to-line voltage is √3 times the phase voltage and the line and phase currents are equal. The delta endpoint gives the delta-connection relationships, where the line and phase voltages are equal and the line current is √3 times the phase current. Supply a line or phase quantity and it returns the rest. Everything is computed locally and deterministically, so it is instant and private. Ideal for electrical, motor, industrial-automation, solar-inverter and building-services app developers, switchboard and motor-sizing tools, and electrical-engineering education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is balanced three-phase power; for the single-phase power triangle use a power-factor API and for voltage drop a voltage-drop API.

api.oanor.com/threephase-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Electric Motor FLA API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Electric Motor FLA API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Electric Motor FLA API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Electric Motor FLA API cost?
Electric Motor FLA API has a free tier with 100 calls / month. Paid plans start at €11.60 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Electric Motor FLA API GDPR-compliant?
All requests to Electric Motor FLA API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/motorfla-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/motorfla-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/motorfla-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/motorfla-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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