The Add-A-Phase® Type SUB is a high-efficiency static phase converter designed specifically for three phase submersible pump motors operating on single phase power. It provides a cost-effective solution for applications where extending three phase utility service is impractical or too expensive. By generating a third phase, the Type SUB ensures proper voltage balance and stable motor operation, making it ideal for deep well pumps, irrigation systems, swimming pool pumps, drainage pumps and other water management applications.
Built with heavy-duty components, the Add-A-Phase Type SUB delivers long-lasting reliability in demanding environments. Its advanced capacitor and autotransformer design maximizes efficiency while minimizing power loss, ensuring optimal motor performance. The converter is available in multiple voltage and horsepower ratings to accommodate a variety of pump sizes, making it a flexible solution for agricultural, municipal, and industrial water systems.
Designed for easy installation, the Add-A-Phase Type SUB eliminates the need for costly motor rewiring or modifications. It seamlessly integrates with existing electrical systems, allowing for quick deployment and minimal downtime. Encased in a weather-resistant NEMA-rated enclosure, it provides protection against environmental elements, making it suitable for both indoor and outdoor installations.
With its proven track record in the field, the Add-A-Phase Type SUB is a trusted solution for ensuring reliable three phase power from a single phase supply, helping to keep water systems running efficiently with minimal maintenance and operating costs.
The reliability and safety of electrical systems have never been more crucial. RONK's American-designed and assembled products are durable, efficient, and built to last for decades.
Request a QuoteStarting Current: Approx. 300% of single phase input full-load amperage
Input Voltage: 240V or 480V
Enclosure: NEMA 3R aluminum
Motor Ratings: 1HP-100HP
1HP: 240V: 7A | 480V: 4A
1.5HP: 240V: 9A | 480V: 6A
2HP: 240V: 13A | 480V: 7A
3HP: 240V: 20A | 480V: 10A
5HP: 240V: 30A | 480V: 15A
7.5HP: 240V: 40A | 480V: 20A
10HP: 240V: 60A | 480V: 30A
15HP: 240V: 80A | 480V: 40A
20HP: 240V: 95A | 480V: 48A
25HP: 240V: 115A | 480V: 58A
30HP: 240V: 150A | 480V: 75A
40HP: 240V: 185A | 480V: 93A
50HP: 240V: 220A | 480V: 110A
60HP: 240V: 280A | 480V: 140A
75HP: 480V: 170A
100HP: 480V: 225A