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Siemens 3RW40 Soft Starter 400V ac, 18.5 kW, 3 Phase

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Subtotal (1 unit)*

R 13 596,60

(exc. VAT)

R 15 636,09

(inc. VAT)

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  • Plus 3 unit(s) shipping from 15 May 2026
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RS stock no.:
202-1697
Distrelec Article No.:
137-65-984
Mfr. Part No.:
3RW4028-1BB04
Manufacturer:
Siemens
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Brand

Siemens

Product Type

Soft Starter

Power Rating

18.5kW

Number of Phases

3

Mount Type

Chassis Mount

IP Rating

IP00

Maximum Supply Voltage

400V ac

Overall Width

45mm

Standards/Approvals

RCM, ATEX, EAC, CCC, CE, UL, CSA

Better World Claim

Concentrated or Compact Solution, Saves Energy

Overall Depth

155mm

Better World Product

Yes

Series

3RW40

Siemens Motor Adjustable Soft Starter, 400V AC, 18.5kW - 3RW4 Series - 3RW4028-1BB04


Attach this Siemens soft starter to your equipment to control the stop and start-up process of three-induction motors. It releases current at a moderate pace, making it suitable for use in motors that run on 18.5kW power. The insulation voltage of 600V means it won't overheat even in demanding environments. As the unit works with a maximum cable length of 300m, it's a versatile choice for use in large workspaces. Use it to help start-up all kinds of industrial machinery.

• Screw terminals for direct and secure electrical connection

• Ambient temperature range between -25°C and +60°C for safe use in demanding environments

• Ingress protection (IP) rating of IP20 protects against contact with items up to 12.5mm in size

• Safe to use in hazardous environments

• Motor-overload protection prevents damage from excessive current

How do I adjust the settings of this Siemens soft starter?


You can manually tweak the settings of this component using the four rotary switches in the front of the enclosure. These can adjust the current limitation, overload trip time and reset the unit after use.

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