Siemens SENTRON - Use of 3 KC4 and 3 KC8 Transfer Switching Equipment; Properties of the 3 KC4 and 3 KC8 Transfer Switching Equipment

Product information
3.2 Product family
22 Manual, 08/2017, L1V30368969104A-02
3.2.2
Use of 3KC4 and 3KC8 transfer switching equipment
The 3KC4 and 3KC8 transfer switching equipment is used to ensure a continuous supply of
power. The equipment enables reliable transfer between a main source and an alternative
source, thus a power supply is provided by means of an emergency source if the main
source is not available.
The three switch positions of the 3KC4 and 3KC8 series enable maximum stability of the
load power supply, in which case only minimum interruption to the power supply occurs.
Type
Product family
Application areas of transfer switching
Network/network
Network/generator
Remotely operated trans-
fer switching equipment
(RTSE)
3KC4 ✓ ✓
Automatic transfer switch-
ing equipment (ATSE)
3KC8 ✓ ✓
3.2.3
Properties of the 3KC4 and 3KC8 transfer switching equipment
The 3KC4 and 3KC8 transfer switching equipment enables a continuous power supply to be
maintained. The main features are as follows:
● Reliable transfer between two sources with transfer through the OFF position
● Simple installation
● Transfer with open transition
● Minimal interruption in the power supply
● Three- and four-pole designs
● Current ratings from 250 A to 3200 A
● Transfer with the supplied handle
● Extensive accessories and spare parts
● Programming in just 5 steps (3KC8 only)
● Suitability for all load types including inductive loads (AC-33)
● Safe maintenance work thanks to locking with padlocks in position 0 (OFF)
● Control signals for starting/stopping the generator, as well as generator and switch device
tests on-load and off-load (3KC8 only)