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. 478-4718
Mfr. Part No.ATS01N112FT
€164.43
Each
units
3 110 480 V 12 A 480 V 24 V dc, 110 240 V ac 5.5 kW IP20 130.7mm 45mm 145mm -10°C +40°C - ATS01
RS Stock No. 240-9134
Mfr. Part No.BA9026 3AC50/60Hz 200-460V 3kW
BrandDold
€404.06
Each
units
3 200 → 460 V ac 8 A 460 V 0 → 28.8 V dc 3 kW IP20, IP40 121mm 45mm 74mm 0°C +55°C - BA9026
RS Stock No. 325-479
Mfr. Part No.1SFA896106R7000
BrandABB
€194.34
Each
units
3 208 600 V 12 A 600 V 100 240 V ac 5.5 kW IP20 113.5mm 45mm 140mm -25°C +60°C - PSR
RS Stock No. 420-495
Mfr. Part No.3RW4028-1BB14
BrandSiemens
€497.48
Each
units
3 200 480 V ac 38 A 480 V ac 110 230 V ac/dc 18.5 kW IP20 125mm 45mm 154mm -25°C +60°C - 3RW40
RS Stock No. 746-4919
Mfr. Part No.3RW3026-1BB04
BrandSiemens
€277.81
Each
units
3 - 25 A 400 V 24 V ac/dc 11 kW IP20 151mm 45mm 125mm - - - 3RW30
RS Stock No. 418-6877
Mfr. Part No.150-C37NBD
€683.80
Each
units
3 200 460 V ac 37 A 460 V ac 100 240 V ac 18.5 kW IP2X 100mm 44.8mm 139.7mm -5°C +50°C - SMC-3
RS Stock No. 478-4730
Mfr. Part No.ATS01N222QN
€225.53
Each
units
3 380 415 V 22 A 415 V - 11 kW IP20 130.7mm 45mm 175mm -10°C +40°C - ATS01
RS Stock No. 608-7097
Mfr. Part No.ATS48D47Q
€836.08
Each
units
3 230 → 415 V 47 A 415 V 220 → 415 V 22 kW IP20 190mm 160mm 275mm -10°C +40°C - ATS48
RS Stock No. 810-4551
Mfr. Part No.134948
BrandEaton
€319.84
Each
units
3 230 → 460 V ac 16 A 460 V ac 24 V dc 7.5 kW IP20 150mm 45mm 126mm 0°C +40°C - DS7
RS Stock No. 746-4947
Mfr. Part No.3RW4027-1TB04
BrandSiemens
€535.03
Each
units
3 - 32 A 400 V 24 V ac/dc 15 kW IP20 154mm 45mm 125mm - - - 3RW40
RS Stock No. 852-3592
Mfr. Part No.1SFA898109R7000
BrandABB
€2,428.24
Each
units
3 100 250 V 106 (Inline) A, 181 (Inside Delta) A 208 600 V - 55 kW IP10, IP20 150mm 194mm 314mm -20°C +60°C - PSTX
RS Stock No. 785-0745
Mfr. Part No.RSE2312-BS
€173.13
Each
units
1 - 12 A 230 V ac 110 480 V ac/dc, 24 110 V ac 3kW IP20 77.4mm 45mm 102.5mm -20°C +50°C - RSE
RS Stock No. 766-2532
Mfr. Part No.DS7-342SX004N0-N
BrandEaton
€241.80
Each
units
3 230 → 460 V ac 4 A 460 V ac 110 → 230 V ac 1.5 kW IP20 45mm 95mm 130mm 0°C +40°C - DS7
RS Stock No. 851-7635
Mfr. Part No.1SFA896106R1100
BrandABB
€193.59
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
RS Stock No. 710-6461
Mfr. Part No.ATS22C48Q
€3,439.70
Each
units
3 230 → 440 V 480 A 440 V 220 → 230 V 250 kW IP00 339.7mm 304mm 455mm -10°C +40°C - ATS22
RS Stock No. 820-0725
Mfr. Part No.ATS01N222RT
€172.05
Each
units
3 440 480 V ac 22 A 460 V ac 120 V ac - IP20 45mm 154mm 135mm -10°C +40 (Without Derating) °C, +50 (With Derating) °C - ATS01
RS Stock No. 820-0700
Mfr. Part No.ATS01N232LU
€388.88
Each
units
3 200 240 V ac 32 A 230 V ac 120 V ac 7.5 kW IP20 45mm 154mm 135mm -10°C +40 (Without Derating) °C, +50 (With Derating) °C - ATS01
RS Stock No. 766-2526
Mfr. Part No.DS7-340SX016N0-N
BrandEaton
€358.67
Each
units
3 230 → 460 V ac 16 A 460 V ac 24 V ac/dc 7.5 kW IP20 45mm 118mm 150mm 0°C +40°C - DS7
RS Stock No. 710-6394
Mfr. Part No.ATS22D62Q
€573.28
Each
units
3 230 → 440 V 62 A 440 V 220 → 230 V 30 kW IP20 247mm 145mm 295mm -10°C +40°C - ATS22
RS Stock No. 477-4913
Mfr. Part No.150-C43NBD
€867.10
Each
units
3 200 460 V ac 43 A 460 V ac 100 240 V ac 22 kW IP2X 130mm 72mm 206mm -5°C +50°C - SMC-3
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