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North America SP-40 Smart-Phase Digital Rotary Phase Converte

By: North America Phase Converter SKU: SP-40 IN STOCK
$6,349.00
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SP-40 Single Phase to Three Phase Rotary Phase Converter

The SP-40 is a high-capacity single-phase to three-phase rotary phase converter built for workshops and light industrial environments running very large single-motor equipment. It delivers stable, dependable three-phase power from a single-phase electrical supply, without pushing you into full-scale industrial power systems.

If you’re operating a large three-phase machine in the 20 to 25 HP range and need strong starting performance with consistent operation under load, the SP-40 is designed to handle that level of demand with confidence.


Designed for Very Large Single-Motor Loads

The SP-40 supports a single motor start horsepower of up to 25 HP, making it a strong fit for large lathes, mills, compressors, pumps, and other high-demand shop equipment that require substantial starting current and stable power delivery.

With a maximum capacity of 72 amps, it provides the electrical headroom needed for smooth startups and reliable operation, while remaining focused on single-machine applications rather than multi-load industrial setups.


Efficient Power at High Capacity

At this level of output, efficiency still matters. The SP-40 has an idle power usage of approximately $0.28 per hour, helping keep operating costs predictable in shops where the converter may remain powered for extended periods.

It’s built to deliver serious capability without unnecessary energy waste.


Electrical Requirements That Match Serious Equipment

The SP-40 is designed to operate on a minimum 100-amp single-phase circuit, which is typical for well-equipped workshops and light industrial facilities running large machinery.

At approximately 387 pounds, it reflects the robust construction and capacity required to support higher-horsepower equipment and is best suited for permanent installation in a dedicated shop or plant environment.


Built for Shops Running Big, Demanding Machines

The SP-40 is intended for operators who have clearly outgrown mid-range converters and now require high starting torque, electrical stability, and dependable performance day after day.

It focuses on reliability and straightforward operation, without unnecessary complexity or overengineering.


Key Specifications

  • Model: SP-40

  • Single motor start capacity: up to 25 HP

  • Maximum capacity amperage: 72 amps

  • Minimum single-phase circuit size: 100 amps

  • Idle power usage: approximately $0.28 per hour

  • Weight: approximately 387 lbs


Ideal For

  • Established workshops and light industrial facilities

  • Single three-phase machines up to 25 HP

  • Large lathes, mills, compressors, and pumps

  • Fabrication, production, and maintenance environments

  • Users needing high starting power and long-term stability


High-Capacity Three-Phase Power Without Industrial Complexity

The SP-40 is built for operations that need serious horsepower from a single-phase supply without stepping into full industrial rotary systems. It delivers dependable performance, predictable efficiency, and a setup that aligns with real-world shop requirements.

Energy Systems Central supplies power solutions designed around how people actually work. The SP-40 reflects that approach, strong, reliable, and purpose-built for high-horsepower single-machine three-phase applications.

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Choosing the right retailer matters, especially for critical power and off-grid systems. Here’s what sets Energy Systems Central apart.

  • Free Shipping Nationwide: Transparent pricing with no hidden fees at checkout.
  • Best Price Assurance: If you find the same product offered for less, we’ll review and match it where applicable.
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  • Expert-Led Support: Speak directly with knowledgeable specialists who understand the products. Call us at 888-332-7989.

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Yes. We provide free standard shipping on all orders shipped within the United States. Shipping costs are included in the listed price with no hidden fees at checkout.

Most orders are processed within 1 to 2 business days. Delivery times typically range from 3 to 7 business days depending on your location, carrier scheduling, and product size.

We offer a 30 day return window for eligible products that are unused and in original condition. Our support team will guide you through the return or exchange process if needed.

Absolutely. Yes. Our knowledgeable product specialists are available by phone, live chat, or email to help you select the right equipment for your application.

Most products include a manufacturer warranty, typically starting at one year. Warranty terms vary by brand and model and are listed on each product page.

Yes. We are an authorized retailer and only sell brand new, genuine products sourced directly from manufacturers or their approved distributors.

SB 5 power distribution panel

North America SP-40 Smart-Phase Digital Rotary Phase Converte

$6,349.00