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Digital Soft-Start

Digital Soft-Start
  Digital Soft-Start

Baldor’s Digital Soft-Start control combines the simplicity of a 6 SCR three phase voltage regulator with the most adaptable soft starting techniques available. Soft Starting reduces the wear on mechanical gears, chains, sprockets, belts and gearboxes. It also reduces water hammer in pumping applications. The reduced inrush current can prevent peak overload of the overall plant, thus preventing peak demand penalties charged by the local utility company.

 

Application software senses changing load conditions and adapts to increase performance. Power factor optimization eliminates motor over-fluxing and allows under-loaded or over-sized motors to operate more efficiently.

The Digital Soft-Start control features include microprocessor logic, NEMA 1 Type enclosure, and 2 x 16 alphanumeric English language keypad.


Features:

  • 9-900A, 208-575V ratings
  • Microprocessor controlled
  • Adjustable Ramp up (and Down) Rate adjustment
  • Adjustable Current Limit
  • I2t Motor overload protection
  • Power Factor optimization
   

Literature:

Digital Soft-Start
  Literature Number: FL850
Installation & Operation Manual
  Literature Number: MN850

Ordering Information and Accessories:

  Digital Soft-Start
  (1)
Standard Duty
(2)
Medium Duty
(3)
Heavy Duty
Cont.
Output
Amps
Catalog
Number
List Price (USD) Mult. Sym. Size
(4)
208V
230V 460V (4)
208V
230V 460V (4)
208V
230V 460V
Motor Application Horsepower @ 10 Starts per hour Maximum
- - 5 - - 5 - - - 9 MD7-009-CB 1,873 E7 1
3 5 10 - - 7.5 - - 5 16 MD7-016-CB 1,945 E7 1
5 7.5 15 - 5 10 - - 7.5 23 MD7-023-CB 2,141 E7 1
7.5 10 20 5 7.5 15 - - 10 30 MD7-030-CB 2,325 E7 1
10 15 30 7.5 10 20 - 5 15 44 MD7-044-CB 2,650 E7 1
15 20 40 10 15 30 5 7.5 20 59 MD7-059-CB 2,969 E7 1
20 25 50 15 15 40 7.5 10 30 72 MD7-072-CB 3,358 E7 1
25 30 60 15 20 50 10 15 40 85 MD7-085-CB 3,549 E7 1
30 40 75 20 30 60 15 20 50 105 MD7-105-CB 4,279 E7 1
40 50 100 30 40 75 20 30 60 146 MD7-146-CB 5,054 E7 1
50 60 125 40 50 100 30 40 75 174 MD7-174-CB 6,700 E7 2
60 75 150 50 60 125 40 50 100 202 MD7-202-CB 7,436 E7 2
75 100 200 60 75 150 50 60 125 242 MD7-242-CB 7,992 E7 2
Motor Application Horsepower @ 3 Starts per hour Maximum
100 125 250 75 100 200 60 75 150 300 MD7-300-CB 8,908 E7 2
125 150 300 100 125 250 75 100 200 370 MD7-370-CB 9,646 E7 2
150 200 400 125 150 300 100 125 250 500 MD7-500-CB 13,189 E7 3
200 - 500 150 200 400 125 150 300 600 MD7-600-CB 14,320 E7 3
- - 600 200 - 500 150 200 400 750 MD7-750-CB 17,095 E7 3
- - 700 - - 600 200 - 500 900 MD7-900-CB 18,507 E7 3
 
(1)
Standard Duty
(2)
Medium Duty
(3)
Heavy Duty
Cont.
Output
Amps
Catalog
Number
List Price (USD) Mult. Sym. Size
575V 575V 575V
Motor Application Horsepower @ 10 Starts per hour Maximum
7.5 5 - 9 MD8-009-CB 2,154 E7 1
10 7.5 5 16 MD8-016-CB 2,238 E7 1
20 10 7.5 23 MD8-023-CB 2,462 E7 1
25 20 10 30 MD8-030-CB 2,674 E7 1
40 30 20 44 MD8-044-CB 3,047 E7 1
50 40 30 59 MD8-059-CB 3,414 E7 1
60 50 40 72 MD8-072-CB 3,860 E7 1
75 60 50 85 MD8-085-CB 4,081 E7 1
100 75 60 105 MD8-105-CB 4,919 E7 1
125 125 100 146 MD8-146-CB 5,813 E7 1
150 - - 174 MD8-174-CB 7,704 E7 2
200 150 125 202 MD8-202-CB 8,550 E7 2
250 200 150 242 MD8-242-CB 9,189 E7 2
Motor Application Horsepower @ 3 Starts per hour Maximum
250 - - 300 MD8-300-CB 10,100 E7 2
300 250 - 370 MD8-370-CB 11,094 E7 2
400 300 300 500 MD8-500-CB 15,165 E7 3
500 400 400 600 MD8-600-CB 16,470 E7 3
600 500 500 750 MD8-750-CB 19,663 E7 3
700 600 600 900 MD8-900-CB 21,284 E7 3
 NOTE: (1) 300% Motor FLA @ 35 Sec., 400% Motor FLA @ 6 Sec. (2) 300% Motor FLA @ 60 Sec., 400% Motor FLA
 @ 12 Sec. (3) 300% Motor FLA @ 80 Sec., 400% Motor FLA @ 35 Sec. (4) 208V applications are UL listed only to 196V.