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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Omschrijving Prijs 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-stocknr. 746-4903
Fabrikantnummer3RW3014-1BB14
FabrikantSiemens
146,00 €
Each
Aantal stuks
3 - 6.5 A 400 V 110 → 230 V ac/dc 3 kW IP20 151mm 45mm 95mm - - - 3RW30
RS-stocknr. 746-4896
Fabrikantnummer3RW3013-1BB04
FabrikantSiemens
129,00 €
Each
Aantal stuks
3 - 3.6 A 400 V 24 V ac/dc 1.5 kW IP20 151mm 45mm 95mm - - - 3RW30
RS-stocknr. 746-4940
Fabrikantnummer3RW4026-1BB04
FabrikantSiemens
318,00 €
Each
Aantal stuks
3 - 25 A 400 V 24 V ac/dc 11 kW IP20 154mm 45mm 125mm - - - 3RW40
RS-stocknr. 420-502
Fabrikantnummer3RW4026-1BB14
FabrikantSiemens
318,00 €
Each
Aantal stuks
3 200 → 480 V ac 25 A 480 V ac 110 → 230 V ac/dc 11 kW IP20 154mm 45mm 125mm -25°C +60°C - 3RW40
RS-stocknr. 420-479
Fabrikantnummer3RW4047-1BB14
FabrikantSiemens
912,00 €
Each
Aantal stuks
3 200 → 480 V ac 106 A 480 V ac 110 → 230 V ac/dc 55 kW IP00 188mm 70mm 170mm -25°C +60°C - 3RW40
RS-stocknr. 746-4959
Fabrikantnummer3RW4037-1BB04
FabrikantSiemens
640,00 €
Each
Aantal stuks
3 - 63 A 400 V 24 V ac/dc 30 kW IP00 170mm 55mm 170mm - - - 3RW40
RS-stocknr. 420-495
Fabrikantnummer3RW4028-1BB14
FabrikantSiemens
453,00 €
Each
Aantal stuks
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-stocknr. 420-508
Fabrikantnummer3RW4027-1BB14
FabrikantSiemens
378,00 €
Each
Aantal stuks
3 200 → 480 V ac 32 A 480 V ac 110 → 230 V ac/dc 15 kW IP20 154mm 45mm 125mm -25°C +60°C - 3RW40
RS-stocknr. 746-4953
Fabrikantnummer3RW4038-1BB04
FabrikantSiemens
743,00 €
Each
Aantal stuks
3 - 72 A 400 V 24 V ac/dc 37 kW IP00 170mm 55mm 170mm - - - 3RW40
RS-stocknr. 420-518
Fabrikantnummer3RW4036-1BB14
FabrikantSiemens
539,00 €
Each
Aantal stuks
3 200 → 480 V ac 45 A 480 V ac 110 → 230 V ac/dc 22 kW IP00 170mm 55mm 170mm -25°C +60°C - 3RW40
RS-stocknr. 746-4912
Fabrikantnummer3RW3018-1BB04
FabrikantSiemens
208,00 €
Each
Aantal stuks
3 - 17.6 A 400 V 24 V ac/dc 7.5 kW IP20 151mm 45mm 95mm - - - 3RW30
RS-stocknr. 746-4943
Fabrikantnummer3RW4027-1BB04
FabrikantSiemens
378,00 €
Each
Aantal stuks
3 - 32 A 400 V 24 V ac/dc 15 kW IP20 154mm 45mm 125mm - - - 3RW40
RS-stocknr. 420-491
Fabrikantnummer3RW4024-1BB14
FabrikantSiemens
270,00 €
Each
Aantal stuks
3 200 → 480 V ac 12.5 A 480 V ac 110 → 230 V ac/dc 5.5 kW IP20 154mm 45mm 125mm -25°C +60°C - 3RW40
RS-stocknr. 420-514
Fabrikantnummer3RW4037-1BB14
FabrikantSiemens
640,00 €
Each
Aantal stuks
3 200 → 480 V ac 63 A 480 V ac 110 → 230 V ac/dc 30 kW IP00 170mm 55mm 170mm -25°C +60°C - 3RW40
RS-stocknr. 746-4956
Fabrikantnummer3RW4036-1BB04
FabrikantSiemens
539,00 €
Each
Aantal stuks
3 - 45 A 400 V 24 V ac/dc 22 kW IP00 170mm 55mm 170mm - - - 3RW40
RS-stocknr. 420-524
Fabrikantnummer3RW4038-1BB14
FabrikantSiemens
743,00 €
Each
Aantal stuks
3 200 → 480 V ac 72 A 480 V ac 110 → 230 V ac/dc 37 kW IP00 170mm 55mm 170mm -25°C +60°C - 3RW40
RS-stocknr. 746-4919
Fabrikantnummer3RW3026-1BB04
FabrikantSiemens
243,00 €
Each
Aantal stuks
3 - 25 A 400 V 24 V ac/dc 11 kW IP20 151mm 45mm 125mm - - - 3RW30
RS-stocknr. 746-4925
Fabrikantnummer3RW3038-1BB04
FabrikantSiemens
620,00 €
Each
Aantal stuks
3 - 72 A 400 V 24 V ac/dc 37 kW IP20 168mm 55mm 144mm - - - 3RW30
RS-stocknr. 420-520
Fabrikantnummer3RW4046-1BB14
FabrikantSiemens
836,00 €
Each
Aantal stuks
3 200 → 480 V ac 80 A 480 V ac 110 → 230 V ac/dc 45 kW IP00 188mm 70mm 170mm -25°C +60°C - 3RW40
Nieuw
RS-stocknr. 185-9743
Fabrikantnummer3RW5248-6TC14
FabrikantSiemens
5.270,00 €
Each
Aantal stuks
3 200 → 480 V 570 A 480 V 110 → 250 V ac 560 kW IP00 210mm 202.5mm 388mm -25°C +60°C Screw Fixing 3RW52