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To all our valued customers - Please note that due to Thanksgiving Holidays in the USA, our delivery schedule will be disrupted this week. The deadline for orders this week is 2pm on Tuesday 25th November. Orders for goods that are not in stock in the UK, received after 2pm, will be shipped on 8th/9th December.

Basic 3-Ph


STELLAR™ SR33 Series Basic 3-Phase Soft Starters


The SR33 series semi-conductor solid state soft starters provide many advantages when used instead of electro-mechanical contactors to control 3-phase AC induction motors:
  • 22A to 482A Rated Current Versions @ 208230/460 VAC
  • Five Trip Classes: Class 5, 10B, 10, 20, 30
  • The SR33 series motor soft starters use thyristors for controlled reduced voltage motor starting and stopping, then switch to internal contacts for efficient running at the rated speed
  • They are designed to fit in place of existing wye-delta starters.

Stellar SR33 series basic reduced voltage soft starter, 22ASR33-22 Stellar SR33 series basic reduced voltage soft starter, 22A

Stellar SR33 series basic reduced voltage soft starter, 22A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 411.21 / 518.00
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 29ASR33-29 Stellar SR33 series basic reduced voltage soft starter, 29A

Stellar SR33 series basic reduced voltage soft starter, 29A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 433.62 / 546.23
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 41ASR33-41 Stellar SR33 series basic reduced voltage soft starter, 41A

Stellar SR33 series basic reduced voltage soft starter, 41A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 482.91 / 608.32
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 55ASR33-55 Stellar SR33 series basic reduced voltage soft starter, 55A

Stellar SR33 series basic reduced voltage soft starter, 55A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 541.17 / 681.71
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 66ASR33-66 Stellar SR33 series basic reduced voltage soft starter, 66A

Stellar SR33 series basic reduced voltage soft starter, 66A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 615.39 / 775.21
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 80ASR33-80 Stellar SR33 series basic reduced voltage soft starter, 80A

Stellar SR33 series basic reduced voltage soft starter, 80A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 651.24 / 820.37
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 97ASR33-97 Stellar SR33 series basic reduced voltage soft starter, 97A

Stellar SR33 series basic reduced voltage soft starter, 97A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. Installation instructions included.

Data Sheet

Price (Ex VAT): 691.57 / 871.17
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 132SR33-132 Stellar SR33 series basic reduced voltage soft starter, 132

Stellar SR33 series basic reduced voltage soft starter, 132A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-132 thru SR33-280 starters require insulation kit SR33-HS1 for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 876.40 / 1,104.00
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 160SR33-160 Stellar SR33 series basic reduced voltage soft starter, 160

Stellar SR33 series basic reduced voltage soft starter, 160A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage.SR33-132 thru SR33-280 starters require insulation kit SR33-HS1 for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 966.02 / 1,216.90
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 195SR33-195 Stellar SR33 series basic reduced voltage soft starter, 195

Stellar SR33 series basic reduced voltage soft starter, 195A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-132 thru SR33-280 starters require insulation kit SR33-HS1 for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 1,060.06 / 1,335.36
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 241SR33-241 Stellar SR33 series basic reduced voltage soft starter, 241

Stellar SR33 series basic reduced voltage soft starter, 241A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-132 thru SR33-280 starters require insulation kit SR33-HS1 for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 1,632.28 / 2,056.18
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 280SR33-280 Stellar SR33 series basic reduced voltage soft starter, 280

Stellar SR33 series basic reduced voltage soft starter, 280A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-132 thru SR33-280 starters require insulation kit SR33-HS1 for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 1,704.05 / 2,146.59
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 350SR33-350 Stellar SR33 series basic reduced voltage soft starter, 350

Stellar SR33 series basic reduced voltage soft starter, 350A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-350 thru SR33-482 have not been tested for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 2,561.36 / 3,226.55
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 430SR33-430 Stellar SR33 series basic reduced voltage soft starter, 430

Stellar SR33 series basic reduced voltage soft starter, 430A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-350 thru SR33-482 have not been tested for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 2,794.25 / 3,519.92
(4-8 working day delivery)

Quantity:  

Stellar SR33 series basic reduced voltage soft starter, 482SR33-482 Stellar SR33 series basic reduced voltage soft starter, 482

Stellar SR33 series basic reduced voltage soft starter, 482A, 208-230/460 VAC, for 3-phase motors (two phases controlled), rated for 10 starts/hour; footprint comparable to a Star-Delta starter. Three potentiometers control settings for: Start Time, Starting Voltage, and Stop Time (ramps down motor voltage, but does not apply braking torque to a load). Unit may require derating for applications other than fans and pumps; see specifications for appropriate derating. Unit requires 24VDC control voltage. SR33-350 thru SR33-482 have not been tested for UL installations. Installation instructions included.

Data Sheet

Price (Ex VAT): 2,933.17 / 3,694.91
(4-8 working day delivery)

Quantity:  

Optional heat shrink insulation kit for SR33 soft starters.SR33-HS1 Optional heat shrink insulation kit for SR33 soft starters.

Optional heat shrink insulation kit for SR33 soft starters. Required for UL installation for the following starters: SR33-132, SR33-160, SR33-195, SR33-241, and SR33-280. Kit includes 1 piece of 1-inch heat shrink tubing that can be cut to length to insulate line and load power wiring and lugs. Installation instructions included.

Data Sheet

Price (Ex VAT): 7.22 / 9.10
(4-8 working day delivery)

Quantity:  
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