Page 253 - Wago_Rail-MountedTerminalBlockSystems_Volume1_2015_US.pdf

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Technical Information 5

251

4 Electrical ratings are given by the fuse or LED nominal
voltage (also see pages 254 – 255).
5

Using pluggable fuse holders with 280/281 and 769
Series rail-mount terminal blocks for control circuit protec-
tion is highly advantageous for the user, as the function
and the wiring are accomplished by two separate parts:
· No additional cost for assembly and wiring
· No risk of accidental contact with live parts during
disconnection of fuse plug
· Quick replacement of fuse plug in case of blown fuse
· The fuse plug can be be removed by service personnel,
avoiding unintentional reclosing of the circuit by another
person.

Further advantages: Wire
· Extremely high density with only 5 mm width of terminal commoning
block/fuse plug chain
· Optional LED indicates blown fuse.

Fuse plug
280-850/
281-413
Through
term. block
Carrier 280-681
term. block
280-610
1 2 3 4 5 6 7 8
Open side of terminal block right
Fuse protection of individual outputs, supply via wire com-
moning chain