Soft Starts

A Soft start motor is a device used typically with electrical AC motors.

How do they work?

They work by helping reduce the torque and load in the power up and electrical current surges that are typical with motors during their start-up phase. The soft start only does this temporary however as it is only needed primarily during start-up

Features and benefits:
•Can control multiple phases of power up


•Control of starting toque in machinery


•Motor power ratings ranging up to 700 kW and above


•Inline contactors are not necessary if the machine it is used on is electrically isolated


•Control starting times of the soft start


•Voltage boost functions available to control over toque


•Can be mounted to DIN, panels or simply snap on capabilities





Where might I use one?
•Smaller size cranes


•Automatic doors/gates


•Fans or pumps


•Conveyor belts


•Compressors

...
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Description Price Phase Supply Voltage Current Rating Voltage Rating Control Voltage Power Rating IP Rating Overall Length Overall Width Overall Depth Minimum Operating Temperature Maximum Operating Temperature Mounting Type Series
RS Stock No. 209-6340
BrandRS PRO
MYR796.39
Each
units
1 230 V ac 12 A 230 V ac - 2.2 kW - 120mm 45mm 70mm 0°C +45°C DIN Rail -
RS Stock No. 418-3626
BrandRS PRO
MYR684.37
Each
units
- - 24 A 12 V dc - - - 122mm 79mm 48mm - - Panel -
RS Stock No. 209-6362
BrandRS PRO
MYR934.78
Each
units
3 380 → 460 V ac 12 A 460 V ac - 5.5 kW IP20 120mm 45mm 75mm 0°C +40°C DIN Rail -
RS Stock No. 418-3610
BrandRS PRO
MYR506.94
Each
units
- - 24 A 24 V dc - - - 84mm 79mm 48mm - - Panel -
RS Stock No. 418-3632
BrandRS PRO
MYR684.37
Each
units
- - 24 A 24 V dc - - - 122mm 79mm 48mm - - Panel -
RS Stock No. 135-9716
BrandRS PRO
MYR907.03
Each
units
2 24 V dc 6.5 A 400 V ac 24 V dc 3 kW IP20 45mm 110mm 121mm 0°C +45°C DIN Rail, Snap-On -
RS Stock No. 135-9715
BrandRS PRO
MYR849.80
Each
units
2 24 V dc 3.5 A 400 V ac 24 V dc 1.5 kW IP20 45mm 110mm 121mm 0°C +45°C DIN Rail, Snap-On -
RS Stock No. 212-8699
BrandRS PRO
MYR1,358.61
Each
units
3 380 → 460 V ac 12 A 460 V ac - 5.5 kW - - - - - - DIN Rail -
RS Stock No. 135-9721
BrandRS PRO
MYR1,269.89
Each
units
2 24 V dc 16 A 400 V ac 24 V dc 7.5 kW IP20 45mm 110mm 121mm 0°C +45°C DIN Rail, Snap-On -
RS Stock No. 135-9719
BrandRS PRO
MYR1,895.70
Each
units
2 10 → 24 V dc 32 A 400 V ac 24 V dc 15 kW IP20 45mm 173mm 158mm 0°C +45°C Snap-On -
RS Stock No. 212-8683
BrandRS PRO
MYR1,171.57
Each
units
3 380 → 460 V ac 5.5 A 460 V ac - 2.2 kW - 120mm 45mm 75mm 0°C +40°C DIN Rail -
RS Stock No. 135-9718
BrandRS PRO
MYR1,393.16
Each
units
2 10 → 24 V dc 25 A 400 V ac 24 V dc 11 kW IP20 45mm 173mm 158mm 0°C +45°C Snap-On -
RS Stock No. 135-9720
BrandRS PRO
MYR2,304.19
Each
units
2 10 → 24 V dc 45 A 400 V ac 24 V dc 22 kW IP20 52.5mm 178mm 158mm 0°C +45°C Snap-On -
RS Stock No. 135-9717
BrandRS PRO
MYR995.74
Each
units
2 24 V dc 12 A 400 V ac 24 V dc 5.5 kW IP20 45mm 110mm 121mm 0°C +45°C DIN Rail, Snap-On -
RS Stock No. 209-6356
BrandRS PRO
MYR760.28
Each
units
3 380 → 460 V ac 5.5 A 460 V ac - 2.2 kW IP20 120mm 45mm 75mm 0°C +40°C DIN Rail -
RS Stock No. 608-7110
Mfr. Part No.ATS48D75Q
MYR6,156.69
Each
units
3 230 → 415 V 75 A 415 V 220 → 415 V 37 kW IP20 235mm 190mm 290mm -10°C +40°C - ATS48
RS Stock No. 732-8364
Mfr. Part No.1SFA897110R7000
BrandABB
MYR8,220.48
Each
units
3 - 143 A 600 V 100 → 250 V 55 kW IP00, IP20 295mm 130mm 219.5mm -25°C +60°C - PSE
RS Stock No. 325-485
Mfr. Part No.1SFA896107R7000
BrandABB
MYR952.41
Each
units
3 208 → 600 V 16 A 600 V 100 → 240 V ac 7.5 kW IP20 113.5mm 45mm 140mm -25°C +60°C - PSR
RS Stock No. 608-7003
Mfr. Part No.ATS48C14Q
MYR8,571.01
Each
units
3 230 → 415 V 140 A 415 V 220 → 415 V 75 kW IP00 265mm 200mm 340mm -10°C +40°C - ATS48
RS Stock No. 851-7635
Mfr. Part No.1SFA896106R1100
BrandABB
MYR1,102.73
Each
units
3 600 V 12 A 208 → 600 V ac 24 V ac/dc 5.5 kW IP20 45mm 114mm 140mm -20°C +60°C - PSR
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