Connection; Network Types And Applications; Transfer Switching Equipment - Siemens SENTRON 3KC0 Manual

Connection

6.1

Network types and applications

You can connect the 3KC0 transfer switching equipment to various network types. It can be
used in the following networks:
● Single-phase network with neutral conductor (1PH + N)
● Three-phase 3-wire network without neutral conductor (3PH)
● Three-phase 4-wire network with neutral conductor (3PH + N)
You can use the 3KC0 transfer switching equipment both in networks with balanced load, as
well as in networks with unbalanced load.
NOTICE
Possible damage to the device!
The product is designed for the following rated impulse withstand voltage U
• 8 kV for sizes 1 and 2 with 16 to 160 A
• 12 kV for sizes 3, 4 and 5 with 200 to 1600 A
When using the product in an application in which overvoltages of > 8 kV or > 12 kV can
occur, suitable measures, such as surge arresters, must additionally be taken to limit these
overvoltages to no more than 8 kV or 12 kV, respectively.
It is possible to use the 3KC0 as transfer switching equipment for switching between two
sources (in compliance with IEC 60947-6-1).
It is also possible to use the 3KC0 as a load transfer switch for switching between two loads
(in compliance with IEC 60947-3).
6.1.1

Transfer switching equipment

If the 3KC0 is used as transfer switching equipment, switching is performed between two
sources (in compliance with IEC 60947-6-1).
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01
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