SKU: 426726749

Phase-A-Matic Static Phase Converter 50 to 75 HP Heavy Duty Static Model # PAM-7500HDES

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Description

Phase-A-Matic Static Phase Converter 50 to 75 HP Heavy Duty Static Model # PAM-7500HDESPhase A Matic Static Phase Converter 50 to 75 HP Phase A Matic Heavy Duty Static Model # PAM 7500HDES Power Range 50 to 75 HP Unit Weight 32. 5 lb Shipping Weight 35 lb Unit Dimensions 18. 75 x 10. 5 x 5. 3 in Shipping Dimensions 24 x 12 x 11 in Converter Series PAM Caution Do not order a larger size Phase A Matic Regular or Heavy Duty series Static Phase Converter thinking it will give you more HP. Refrigeration compressors, pumps, blowers, resistive

Phase-A-Matic Static Phase Converter 50 to 75 HP Phase-A-Matic™ Heavy Duty Static Model # PAM-7500HDES


Power Range

50 to 75 HP

Unit Weight

32.5 lb

Shipping Weight

35 lb

Unit Dimensions

18.75 x 10.5 x 5.3 in

Shipping Dimensions

24 x 12 x 11 in

Converter Series

PAM

Caution

Do not order a larger size Phase-A-Matic™ Regular or Heavy-Duty series Static Phase Converter thinking it will give you more HP. Refrigeration compressors, pumps, blowers, resistive loads, CNC equipment, electronic speed controls, and three-phase transformers must use Method No. 2 (See Description Tab), or use our Phase-A-Matic™ Rotary Phase Converter.

Not for Use in Wet or Damp Locations.



 Product Description

RUNS THREE-PHASE MOTORS FROM SINGLE-PHASE POWER AT 2/3 RATED HP*

*Refers to wye-wound motors; delta-wound motors will run at 50% rated HP. Delta-wound motors are very rare in the USA, occasionally being found on some imported equipment, and are particularly found on German and Italian machines.

Phase-A-Matic™ Static Phase Converters have been developed, tested, and thoroughly proven over a 46 year period demonstrating exceptionally high reliability and long life. These converters are the workhorse of many commercial uses and multitudes of home shop machines.

LIFE EXPECTANCY: The Static Converter has been in use for approximately 52 years and has already proven itself to be extremely reliable when properly applied. Phase-A-Matic™ was recently able to purchase back the first one that was ever sold, and it is still working fine. It is reasonable to expect the converter to be in good working condition and service for 20 or 30 years or more. We continue to hear back from customers who have them still running their equipment faithfully after 20 years and more.

Uses include: Lathes, Mills, Grinders, Drills, Saws, Metalworking and Woodworking Equipment, Printing Equipment, Sewing Machines, Garbage Disposals, Food Processing Equipment, Meat Grinders, Food Mixers and Blenders, Conveyer Belts, and numerous other uses.

METHOD #1


Using the Phase-A-Matic™ Static Converter only will produce approximately 2/3 normal HP.* This method is inexpensive, the most popular, provides excellent results on most machines tools and numerous other uses. Motor speed is not changed. Most two-speed motors, power feeds, coolant pumps, etc., will operate normally. Motor will instant reverse. There is nothing to change. All switch gear will work normally.

*Refers to wye-wound motors; delta-wound motors will run at 50% rated HP. Delta-wound motors are very rare in the USA, occasionally being found on some imported equipment, and are particularly found on German and Italian machines.

METHOD #2


FOR FULL OR CLOSE TO FULL HP
~~ Configure as a rotary converter using Phase-A-Matic™ static unit ~~

Full or close to full HP can usually be obtained by running a three-phase motor and Phase-A-Matic™ Static Converter combination as shown on the Installation Instructions. When running unloaded, the windings of the motor function as a rotary transformer or generator while consuming very little extra power. The Idler Motor needs to be at least 50% larger than the largest motor that you want to run to accommodate the higher starting current. A good quality 3600 RPM, three phase wye-wound, 220V motor is the best choice. 1800 RPM motors can be used on applications not heavily loaded. Used three-phase motors are inexpensive and readily available.

When using this method, it is possible to run multiple machines as long as the idler motor is large enough to handle the largest load it would ever have at any one time. For instant reversing of the load motor, as in rigid tapping, the idler motor must be a minimum of twice the HP rating of the load motor, and perhaps more.

The Static Converter is sized to the HP of the idler motor, not the load motor(s).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 426726749

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Jane - NY
Massapequa, US
★★★★★ 5
AMAZING - LOVE THESE!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!
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Reviewed in the United States on March 23, 2026
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Amazon Customer
Dallas, US
★★★★★ 3
Cool Pillowcases
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
These pillow cases are silky soft and cool to the touch. They don’t stay as cool as I would like, however, so I find myself moving around on the pillow to find a cool spot or flipping the pillow over. I have washed them several times and the coolness seems to be diminishing. Still, it’s better than a regular cotton pillow case. The zipper is needed and helps keep the material on the pillow.
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Reviewed in the United States on August 20, 2025
S
Verified Purchase
Scott Mautino
Alexandria, US
★★★★★ 5
By far the best cooling pillow case I’ve bought highly recommend
Color: Blue, Size: Standard, Set name: Silky
Highly recommend best cooling pillow case I’ve bought very soft and comfortable seems to be made from good material as well
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Reviewed in the United States on May 3, 2026
R
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ryguy
New York, US
★★★★★ 5
Soft and smooth cover
Color: Grey, Size: Body(20"X 54")
This is a nice pillow cover overall. The fabric feels good and it's comfortable to sleep on, especially compared to a more basic cotton cover. It is maybe a little thinner than I expected, so if you want something thick and heavy this probably isn't that. But for a soft smooth cover that fits and feels decent, I think it's worth it. No major complaints from me after using it.
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Reviewed in the United States on May 16, 2026
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Kindle Customer
Houston, US
★★★★★ 5
These are the ones you want
Color: Grey, Size: Body(20"X 54")
May need to iron them out when wash/dried but my old ones still look new- soft, cooling, smooth, color is still great. Not itchy or cheap feeling. Buying a new set for family.
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Reviewed in the United States on May 15, 2026

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