The Add-A-Phase® Type HD is a heavy-duty static phase converter engineered to provide balanced and efficient three phase power from a single phase source. Designed for demanding industrial and agricultural applications, the Type HD is ideal for high-load machinery, pumps, compressors, and other motor-driven equipment that require many starts per hour (60 or more).
With its advanced auto-transformer and capacitor-based design, the Add-A-Phase Type HD ensures excellent voltage balance across all three phases, maximizing motor performance and efficiency. Unlike traditional rotary converters, this static converter offers a compact, low-maintenance solution that delivers smooth power conversion without excessive energy loss or heat buildup.
Built to withstand harsh operating conditions, the Type HD features a durable, NEMA-rated enclosure for protection against dust, moisture, and extreme temperatures. Its rugged construction and high-quality components make it a long-lasting and dependable power solution for critical use applications where three phase utility service is unavailable or cost-prohibitive. Examples of critical use may include; Fire sirens, community warning sirens, flood gates, door openers, ice makers, and valve actuator pipeline motors.
Installation is straightforward, with no need for motor modifications or complex wiring. The Add-A-Phase Type HD seamlessly integrates into existing electrical systems, allowing businesses to power heavy-duty three phase equipment with minimal downtime and investment. Its ability to handle high-inertia loads and fluctuating power demands makes it an excellent choice for applications requiring consistent and reliable operation.
For industries that depend on robust and efficient power conversion, the Add-A-Phase Type HD delivers the performance, durability, and cost-effectiveness needed to keep operations running smoothly.
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-40HP
1HP: 240V: 5A | 480V: 3A
1.5HP: 240V: 7A | 480V: 4A
2HP: 240V: 9A | 480V: 6A
3HP: 240V: 13A | 480V: 7A
5HP: 240V: 20A | 480V: 10A
7.5HP: 240V: 30A | 480V: 15A
10HP: 240V: 40A | 480V: 20A
15HP: 240V: 60A | 480V: 30A
20HP: 240V: 80A | 480V: 40A
25HP: 240V: 95A | 480V: 48A
30HP: 240V: 115A | 480V: 58A
40HP: 240V: 150A | 480V: 75A