The GP20NLTA rotary phase converter with Autolink converts single-phase 230V power to three-phase 460V — giving you 20 HP of continuous capacity with built-in step-up voltage conversion. No separate transformer needed. Built for facilities that need 460V three-phase power from a standard 230V single-phase service.
| Model | GP20NLTA |
| Total Running HP | 20 HP |
| Largest Starting Motor | 10 HP |
| Input Voltage | 230V Single-Phase |
| Output Voltage | 460V Three-Phase |
| Autolink Transformer | 15 KVA |
| Service Size | 25 KVA (100A) |
| Breaker Size | 40 MIN - 100 MAX |
| Single Phase Wire Size | 4 AWG (under 50 feet) |
| Idler Motor Wire Size | 6 AWG |
| Idler Motor | 330 lbs, 12" x 12" x 20" |
| Electrical Panel | 37 lbs, 20" x 12" x 8" |
NLTA Series Wiring Diagram — single-phase 230V in, three-phase 460V out with built-in Autolink transformer
📦 What's Included
- ✅ 20 HP TEFC Idler Motor (continuous duty, cast iron frame)
- ✅ Pre-wired Electrical Control Panel
- ✅ Built-In Autolink Step-Up Transformer (15 KVA)
- ✅ AutoLink Soft-Start System
- ✅ Complete Installation Manual & Wiring Diagrams
- ✅ Lifetime Warranty — motor, panel & transformer
Why the GP20NLTA Phase Converter
The Autolink transformer converts 230V three-phase to 460V three-phase internally — no external transformer box needed. Cleaner installation, smaller footprint.
Clean, balanced 460V three-phase power from your single-phase supply. Won't damage sensitive equipment or trip breakers under load.
One phase converter powers your entire shop — up to 20 HP of simultaneous three-phase load across all your equipment.
Thermal and magnetic protection safeguards your equipment. AutoLink soft-start system prevents inrush damage on startup.
Continuous duty rated. TEFC motor handles 24/7 operation in demanding environments — dust, heat, and vibration.
Integrated Autolink design eliminates the cost and complexity of a separate step-up transformer. One unit does it all.
IP65 Weatherproof Control Panel
Every panel is rated IP65 — fully sealed against dust and water jets. Install indoors or outdoors with confidence, even in harsh shop environments.
Heavy-Duty TEFC Idler Motor
Totally Enclosed Fan Cooled motor with cast iron frame, precision-balanced rotor, and sealed bearings. Built for decades of continuous industrial service.
🏗️ Common Applications for 20 HP Phase Converters
The GP20NLTA is commonly used to power 460V three-phase equipment in shops, farms, and industrial facilities running on single-phase 230V utility service.
GP20NLTA Technical Documentation
Complete specs, wiring diagrams, and installation instructions for this phase converter
Talk to an engineer — we'll size the right phase converter for your exact setup
The GP20NLTA is a 20 HP rotary phase converter with built-in Autolink transformer, designed and manufactured by Phoenix Phase Converters in Phoenix, Arizona. This single phase to three phase converter provides reliable 460V three-phase power from a standard 230V single-phase service, with integrated step-up voltage conversion. No external transformer is needed — the Autolink system handles the voltage conversion internally, simplifying installation and reducing costs.
The NLTA series is ideal for facilities that need 460V three-phase power but only have access to 230V single-phase service. Common applications include CNC machines, air compressors, pumps, HVAC systems, and other industrial equipment rated for 460V operation.
Not sure which phase converter size you need? Our engineers can help you calculate the right HP rating based on your equipment list, starting loads, and how many machines run simultaneously. Call us at (800) 417-6568 for free sizing assistance.
