3RW22 (no longer available):
With SIKOSTART 3RW22, the maximum permissible cable length between SIKOSTART and the motor is 200m.
3RW30xx-xAAxx 3RW30xx-xABxx, 3RW30xx-xCBxx, 3RW31xx-xCBxx (no longer available):
The maximum allowable cable length between the soft starter and the motor is 100m when using the soft starters 3RW30xx-xAAxx 3RW30xx-xABxx, 3RW30xx-xCBxx, 3RW31xx-xCBxx.
3RW30xx-xBBxx:
The maximum allowable cable length between the soft starter and the motor is 300m when using the 3RW30xx-xBBxx.
3RW34 (no longer available):
With SIKOSTART 3RW34, the maximum allowable cable length between SIKOSTART and the motor is 300m.
3RW40:
The maximum allowable cable length between the soft starter and the motor is 300m when using the soft starter 3RW40.
3RW44:
The maximum allowable cable length between the soft starter and the motor is 500m when using the soft starter 3RW44.
3RW5:
With 3RW5x, it can be up to 800m long, regardless of the type of cable.
In addition, with the 3RW5x, the cable capacitance can be up to 660 nF/km when using cables up to 1000 meters.
The voltage drop that will occur over the length of the cable used must be taken into account.
This may result in the need for equipment with higher dielectric strength.
The use of separate cables and shielded cables is permitted.
If the cable length is exceeded, the increased cable capacitance can cause problems with thyristor triggering.
The soft starter will not start because the thyristor will not be able to complete the ignition operation if the zero intersection is offset too much.
In addition, in the long run, too high cable capacitance can damage the components in the soft starter, leading to failure.
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More on that
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How to view the full order number of our 3RW soft starter
1. Find from the front panel of the product, as shown in the figure below, the part of the red box in the picture The characters that start with 3RW are the order number: 3RW4036-1BB14
2. Look for the white sticker label on the right side of the product, as shown in the figure below, look at the part that is boxed in red, and find the one that starts with 3RW.
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Siemens won the 2021 "Together, Together, Together" award
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The 95, 96, and 98 of the 3RW44 soft starter are comprehensive faults, what causes it to act?
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Abundant models, more choices
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HBIS and Siemens have established a comprehensive strategic partnership
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Set update options for control bytes. Need...
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SIMATIC S7-1200 compact CPU
Installation
1. Remove the backplane bus cover
2. Insert the SM onto the standard mounting rail
3. Push the SM to the adjacent module
4. Lock the standard rail mounting clip
5. Push the latch used to connect the bus connector to the left so that the bus pin is connected to the adjacent module
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Introduction to the installation method of Siemens fuse
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(2) West ...
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