North America Smart-Boost SB-25 Rotary Phase Converter

North America Smart-Boost SB-25 Rotary Phase ConverterSmart Boost SB 25 Digital Rotary Phase Converter The Smart Boost SB 25 is an industrial grade digital rotary phase converter designed to solve one of the toughest power problems in three phase equipment, hard and inconsistent motor starts. Using Smart Boost digital control technology, it can deliver up to 600 percent additional current during startup, giving large, demanding motors the surge they need to start cleanly and reliably. This system is

Smart-Boost SB-25 Digital Rotary Phase Converter

The Smart-Boost SB-25 is an industrial-grade digital rotary phase converter designed to solve one of the toughest power problems in three-phase equipment, hard and inconsistent motor starts. Using Smart-Boost digital control technology, it can deliver up to 600 percent additional current during startup, giving large, demanding motors the surge they need to start cleanly and reliably.

This system is built for equipment that operates at the edge of what standard rotary phase converters can handle. If motors downstream hesitate, stall under load, or require repeated attempts to start, the SB-25 is designed specifically to eliminate that issue.

Built for Large, Hard-Starting Industrial Loads

The SB-25 is well suited for larger air compressors, submersible pumps, flywheels, gearhead lathes, and other high-inertia three-phase machines. These systems often draw extreme current during startup, even though they may run normally once up to speed.

Smart-Boost technology responds dynamically to these conditions, delivering extra current only when it is needed. This allows difficult equipment to start reliably without overstressing the electrical system or the converter itself.

How Smart-Boost Digital Control Works

At the core of the SB-25 is a Smart-Boost digital controller that uses solid-state relays to re-energize the start capacitors at zero-degree crossing on the sine wave. This precise timing allows the system to surge additional current during startup while minimizing electrical noise and harmonic distortion.

In real-world terms, this means stronger motor starts, smoother operation, and cleaner power behavior in demanding industrial environments.

Smooth Starts and Efficient Power Delivery

Soft-start functionality reduces mechanical and electrical shock during startup. Motors ramp up smoothly rather than pulling aggressively, which helps extend the service life of both the equipment and the phase converter.

The low-impedance, high-efficiency design supports effective power transfer, resulting in better motor response and more predictable performance under heavy load.

Integrated Controls and Built-In Protection

The Smart-Boost SB-25 includes an integrated control panel with a built-in motor starter and solid-state relay. Startup and operation are handled automatically, keeping the system straightforward to use even in industrial settings with demanding equipment.

All components are housed in a NEMA 1 indoor-rated enclosure, intended for clean, dry environments where protection and accessibility are equally important.

Industrial Components Built for Long-Term Operation

At the heart of the system is an idler-generator motor from ABB Baldor, widely trusted in industrial applications for durability and long service life. Self-healing, oil-filled motor start and run capacitors support consistent performance over time, even with repeated heavy startups.

Combined with solid-state digital control, these components make the SB-25 a long-term power solution rather than a temporary workaround.

What’s Included

• Smart-Boost SB-25 digital rotary phase converter

• Integrated control panel

• Built-in motor starter

• Solid-state relay

• Digitally controlled system with 600 percent current boost capability

• Self-healing oil-filled motor start and run capacitors

• ABB Baldor idler-generator motor

• NEMA 1 indoor-rated enclosure

• Soft-start functionality

• Low-impedance, high-efficiency design

• 10-year parts warranty with lifetime labor support

Ideal For

• Large hard-starting air compressors

• Submersible pumps and pump systems

• Gearhead lathes and flywheel-driven machinery

• High-inertia or heavy-load three-phase motors

• Industrial environments where startup reliability is critical

High-Capacity Startup Power for Demanding Equipment

The Smart-Boost SB-25 is built for operations where startup performance determines whether equipment runs smoothly or becomes a constant operational problem. By delivering intelligent, high-current support exactly when it is needed, it provides a dependable way to run demanding three-phase equipment from single-phase power.

Energy Systems Central supplies power solutions designed for real industrial challenges. The Smart-Boost SB-25 reflects that approach, precise, robust, and engineered for equipment that needs more than standard phase conversion.