Construction and characteristics
18
Technical changes reserved
Tap-off units with fused switch disconnector, or MCCB
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Tap-off units for plug-in are equipped with circuit breakers (MCCB) or HRC
fused switch disconnector.
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Empty tap-off units for self configuration are also available.
Tap-off units with HRC fused switch disconnectors are available for the following
fuses (delivery always without fuses):
HRC fuse
Rated current of tap-off unit
Size 00
125 A
Size 1
250 A
Size 2
400 A
Size 3
630 A
3.6
Tap-off units for connection joints (250 - 1250 A)
Tap-off units for connection joints are available for connection joints on straight
busbar elements with protection type IP55. They can be used at connection
joints on straight busbar elements of any rated current.
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Installing a tap-off unit requires the power to be disconnected from the
busbar run.
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A joint block for tap-off units (with a special joint block), available as an
accessory, is installed.
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Tap-off units for plug-in are equipped with circuit breakers (MCCB) or HRC
fused switch disconnectors.
Connection compartment for tap-off units
Planning information: Because of the dimensions, the installation of a tap-off unit
for connection joint may restrict the fitting of tap-off units on neighbouring
straight busbar elements with plug-in (for version of straight busbar elements
with plug-in offset on both sides).
Dimensions of tap-off unit for connection joints (on left in picture)
Содержание KEH31D00S3LMA
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