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Type 4PS-OF ECONO-PHASE® Shifters For single motor applications where 100% continuous duty is not required

cUL - U.S. Listed

Description

The Ronk ECONO-PHASE Shifter is a cost-effective, high efficiency power converter for use in pump jack application where Design D high-slip pump jack motors are used. Electric pumping start-up costs on smaller wells can be reduced significantly using this unit. Single phase oil well motors are limited in size and availability, as well as being more expensive initially and in operation. This unit makes it possible to utilize standard three phase motors, which are available in ratings that single phase motors are not.

ECONO-PHASE Shifter uses heavy components matched to oil well requirements for surging loads and the ability to operate continuously, if needed. Special capacitors are used to handle the high peak voltages that can occur when the motor runs over-speed in the down stroke and acts as a generator.

Because of the run capacitor design in the ECONO-PHASE converter, they will generally operate most motors at full load as needed and provide ¾ load on a continuous basis.

Specifications

Type: 4PS-OF
Series: ECONO-PHASE Shifter
Input Voltage: Single-phase 480 V
Output Voltage: Three-phase 480 V
Enclosure: NEMA 3R aluminum
Dimensions: Varies according to enclosure – see chart below
Weight: Varies according to type, enclosure, and horsepower – see chart below
Motor Ratings: 1 HP to 75 HP
Limited Warranty: 5 Years
Amp Rating
Dimensions
Shipping Weights
Applications

1⌀ Full-load Amp Rating*

Horsepower 1⌀ Input
FLA
3 HP 7 A
5 HP 10 A
7.5 HP 15 A
10 HP 20 A
15 HP 30 A
20 HP 40 A
25 HP 48 A
30 HP 58 A
40 HP 75 A
50 HP 93 A
60 HP 110 A
75 HP 140 A

* Operate both WYE and DELTA motors, no “special” motor connections required

Nema 3R Enclosures: Frame 602

Nema 3R Enclosure Dimensions

Enclosure 602 applies to the following converter sizes:

  • 3 HP – 10 HP
Enclosure A B C D E F G
602 14-1/4 in. 8-1/2 in. 12-13/16 in. 13-5/16 in. 8-1/4 in. 17-1/4 in. 16-1/16 in.

Nema 3R Enclosures: Frames 603, 604 & 605

Nema 3R Enclosure Dimensions

Enclosure 603 applies to the following converter sizes:

  • 15 HP – 25 HP

Enclosure 604 applies to the following converter sizes:

  • 30 HP – 40 HP

Enclosure 605 applies to the following converter sizes:

  • 50 HP – 75 HP
Enclosure A B C D E F G
603 17 in. 11 in. 16-1/8 in. 18 in. 10 in. 13 in. 1/2 in.
604 25-1/2 in. 10-15/16 in. 17-5/8 in. 28 in. 14-7/8 in. 15-7/8 in. 1/2 in.
605 25-1/2 in. 11-15/16 in. 20-1/8 in. 28 in. 17 in. 18 in. 1/2 in.

Enclosure Size & Approximate Shipping Weights

Enclosure Horsepower Weight
602 3 HP 16 lbs.
5 HP 13 lbs.
7.5 HP 17 lbs.
10 HP 18 lbs.
603 15 HP 30 lbs.
20 HP 32 lbs.
25 HP 37 lbs.
604 30 HP 49 lbs.
40 HP 53 lbs.
605 40 HP 63 lbs.
60 HP 65 lbs.
75 HP 70 lbs.

Typical Applications (select link for product inquiry)

  • Mills
  • Motors - 900 rpm - 8 pole
  • Motors - 1,200 rpm - 6 pole
  • Pump - oil jack
  • Saw - radial arm
  • Woodworking equipment, tables saws