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. 152-772
Mfr. Part No.1SFA896109R7000
BrandABB
HK$2,805.40
Each
units
3 208 → 600 V 30 A 600 V 100 → 240 V ac 15 kW IP20 128mm 45mm 160mm -25°C +60°C - PSR
RS Stock No. 656-6578
Mfr. Part No.1SFA896111R7000
BrandABB
HK$4,220.00
Each
units
3 208 → 600 V 45 A 600 V 100 → 240 V ac 22 kW IP10, IP20 153mm 54mm 187mm -25°C +60°C - PSR
RS Stock No. 152-801
Mfr. Part No.1SFA896110R7000 - PSR37-600-70
BrandABB
HK$3,954.31
Each
units
3 208 → 600 V 37 A 600 V 100 → 240 V ac 18.5 kW IP10, IP20 153mm 54mm 187mm -25°C +60°C - PSR
RS Stock No. 656-6562
Mfr. Part No.1SFA896110R7000
BrandABB
HK$2,880.00
Each
units
3 208 → 600 V 37 A 600 V 100 → 240 V ac 18.5 kW IP10, IP20 153mm 54mm 187mm -25°C +60°C - PSR
RS Stock No. 852-3592
Mfr. Part No.1SFA898109R7000
BrandABB
HK$24,097.79
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. 851-7622
Mfr. Part No.1SFA896104R1100
BrandABB
HK$1,506.30
Each
units
3 600 V 6.8 A 208 → 600 V ac 24 V ac/dc 3 kW IP20 45mm 114mm 140mm -20°C +60°C - PSR
RS Stock No. 325-479
Mfr. Part No.1SFA896106R7000
BrandABB
HK$1,529.80
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. 851-7663
Mfr. Part No.1SFA896115R1100
BrandABB
HK$8,112.90
Each
units
3 600 V 105 A 208 → 600 V ac 24 V ac/dc 55 kW IP10 70mm 180mm 220mm -20°C +60°C - PSR
RS Stock No. 852-3609
Mfr. Part No.1SFA898112R7000
BrandABB
HK$32,519.24
Each
units
3 100 → 250 V 210 (Inline) A, 360 (Inside Delta) A 208 → 600 V - 110 kW IP00, IP20 258mm 276mm 470mm -20°C +60°C - PSTX
RS Stock No. 851-7626
Mfr. Part No.1SFA896105R1100
BrandABB
HK$1,773.06
Each
units
3 600 V 9 A 208 → 600 V ac 24 V ac/dc 4 kW IP20 45mm 114mm 140mm -20°C +60°C - PSR
RS Stock No. 851-7650
Mfr. Part No.1SFA896113R1100
BrandABB
HK$6,375.13
Each
units
3 600 V 72 A 208 → 600 V ac 24 V ac/dc 37 kW IP10 70mm 180mm 220mm -20°C +60°C - PSR
RS Stock No. 851-7632
Mfr. Part No.1SFA896108R1100
BrandABB
HK$2,380.57
Each
units
3 600 V 25 A 208 → 600 V ac 24 V ac/dc 11 kW IP20 45mm 128mm 160mm -20°C +60°C - PSR
RS Stock No. 732-8358
Mfr. Part No.1SFA897107R7000
BrandABB
HK$9,190.00
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. 852-3570
Mfr. Part No.1SFA898103R7000
BrandABB
HK$9,971.14
Each
units
3 100 → 250 V 30 (Inline) A, 52 (Inside Delta) A 208 → 600 V - 15 kW IP20 150mm 194mm 314mm -20°C +60°C - PSTX
RS Stock No. 152-750
Mfr. Part No.1SFA896103R7000 - PSR3-600-70
BrandABB
HK$1,770.00
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. 703-5123
Mfr. Part No.1SFA896113R7000
BrandABB
HK$5,362.53
Each
units
3 208 → 600 V 72 A 600 V 100 → 240 V ac 37 kW IP10, IP20 180mm 70mm 220mm -25°C +60°C - PSR
RS Stock No. 732-8364
Mfr. Part No.1SFA897110R7000
BrandABB
HK$11,960.00
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
HK$1,839.36
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. 851-7654
Mfr. Part No.1SFA896114R1100
BrandABB
HK$7,361.79
Each
units
3 600 V 85 A 208 → 600 V ac 24 V ac/dc 45 kW IP10 70mm 180mm 220mm -20°C +60°C - PSR
RS Stock No. 852-3602
Mfr. Part No.1SFA898110R7000
BrandABB
HK$27,810.05
Each
units
3 100 → 250 V 143 (Inline) A, 245 (Inside Delta) A 208 → 600 V - 75 kW IP00, IP20 199mm 235mm 377mm -20°C +60°C - PSTX