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T B S e r i e s O p e n C o r e a n d C o i l I n d u s t r i a l C o n t r o l T r a n s f o r m e r s
TB SERIES SECONDARY FUSE KITS
Type PL79924, PL79930, & PL79931: Use Dual Element Slow-Blow Fuse
Q Mount secondary fuse clips on terminals X1 and F or F1 using the
screws supplied with the transformer.
Q Connect secondary load lines to terminals X2 and F or F2.
Use Jumper Link to connect F1 and F2.
Q Use dual-element slow-blowing fuses such as Bussmann MFG., Fusetron
Type FNM, Littelfuse or Ferraz Shawmut (not supplied with fuse kits).
INSTRUCTIONS FORTB SERIES SECONDARY FUSE KITS
Type PL112603: use dual element slow-blow fuse 13/32” x 1-1/2”
(1.0 x 3.8 cm)
attach secondary fuse kit PL 112603 to primary fuse kits PL112700
thru PL112705 snap the secondary single pole fuse block onto the
unlabeled side of the primary double pole fuse block. (See Figure 1)
2.Install the fuse kits as instructed under the primary fuse kit instructions
on page 78.
3.Select the appropriate pair of jumpers for making the connections
between the secondary fuse block and the secondary (X-side) of the
transformer.
4.Connect the female quick-connect of the jumpers supplied to one of the
male quick-connects of the secondary fuse block—one jumper to each end
of the fuse block. (See Figure 2)
5.Connect the ring terminal of the jumpers supplied to screw terminals X1
and F or F1 on the secondary (X-side) of the transformer.
6.Connect secondary load lines to terminals
X2 and F or F2.
Secondary
Fuse Kit
Figure 1 Figure 2
Catalog Number VA Type
PL79924* 50-1000 1/4" x 1-1/4"
PL79930 50-350 13/32" x 1-1/2"
PL79931 500-1000 13/32" x 1-1/2"
* PL79924: Use fuse kit on all transformers except 750 & 1000 VA with 24 volt secondary.