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. 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. 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. 785-0745
Mfr. Part No.RSE2312-BS
€173.13
Each
units
1 - 12 A 230 V ac 24 → 110 V ac, 110 → 480 V ac/dc 3kW IP20 77.4mm 45mm 102.5mm -20°C +50°C - RSE
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 Screw Fixing ATS01
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. 851-7657
Mfr. Part No.1SFA896112R1100
BrandABB
€561.82
Each
units
3 600 V 60 A 208 → 600 V ac 24 V ac/dc 30 kW IP10 70mm 180mm 220mm -20°C +60°C - PSR
RS Stock No. 477-4913
Mfr. Part No.150-C43NBD
€1,000.00
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
RS Stock No. 732-8358
Mfr. Part No.1SFA897107R7000
BrandABB
€1,114.56
Each
units
3 - 72 A 600 V 100 → 250 V 30 kW IP00, IP20 245mm 90mm 185.5mm -25°C +60°C - PSE
RS Stock No. 732-8342
Mfr. Part No.1SFA897104R7000
BrandABB
€678.95
Each
units
3 - 37 A 600 V 100 → 250 V 15 kW IP00, IP20 245mm 90mm 185.5mm -25°C +60°C - PSE
RS Stock No. 703-5129
Mfr. Part No.1SFA896112R7000
BrandABB
€577.72
Each
units
3 208 → 600 V 60 A 600 V 100 → 240 V ac 30 kW IP10, IP20 180mm 70mm 220mm -25°C +60°C - PSR
RS Stock No. 746-4931
Mfr. Part No.3RW4024-1BB04
BrandSiemens
€308.67
Each
units
3 - 12.5 A 400 V 24 V ac/dc 5.5 kW IP20 154mm 45mm 125mm - - - 3RW40
RS Stock No. 785-0754
Mfr. Part No.RSGD4016F0VD20
€243.01
Each
units
3 - 16 A 400 V ac 24 V ac/dc 4 kW IP20 125mm 45mm 109.8mm -20°C +60°C - RSGD
RS Stock No. 746-4959
Mfr. Part No.3RW4037-1BB04
BrandSiemens
€731.67
Each
units
3 - 63 A 400 V 24 V ac/dc 30 kW IP00 170mm 55mm 170mm - - - 3RW40
RS Stock No. 478-4768
Mfr. Part No.ATS01N206QN
€164.43
Each
units
3 380 → 415 V 6 A 415 V 24 V dc, 110 → 240 V ac 2.2 kW IP20 130.7mm 45mm 145mm -10°C +40°C - ATS01
RS Stock No. 152-750
Mfr. Part No.1SFA896103R7000 - PSR3-600-70
BrandABB
€249.38
Each
units
3 208 → 600 V 3.9 A 600 V 100 → 240 V ac 1.5 kW IP20 113.5mm 45mm 140mm -25°C +60°C - PSR
RS Stock No. 710-6458
Mfr. Part No.ATS22C17Q
€1,065.20
Each
units
3 230 → 440 V 170 A 440 V 220 → 230 V 90 kW IP00 269.5mm 150mm 356mm -10°C +40°C - ATS22
RS Stock No. 608-7104
Mfr. Part No.ATS48D62Q
€882.59
Each
units
3 230 → 415 V 62 A 415 V 220 → 415 V 30 kW IP20 235mm 190mm 290mm -10°C +40°C - ATS48
RS Stock No. 822-6077
Mfr. Part No.ATS22D75S6
€1,048.35
Each
units
3 208 → 600 V 75 A 600 V 230 V 45 kW IP54 145mm 295mm 247mm -10°C +40°C - ATS22
RS Stock No. 785-0770
Mfr. Part No.RSGD4045E0VX20
€568.98
Each
units
3 - 45 A 400 V ac 110 → 400 V ac 11 kW IP20 132mm 45mm 153.8mm -20°C +60°C - RSGD
RS Stock No. 152-716
Mfr. Part No.1SFA896106R7000 - PSR12-600-70
BrandABB
€245.06
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
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