Armstrong 4380 - 8.0 Fuse and Wire Recommendation

installation &
operating instructions
Design Envelope 4300 & 4380
Vertical In-line Pumping Unit
34
8.0 fuse and wire recommendation
Armstrong recommends ul 248-12 Listed Class rk1 current-
limiting and Fast-acting fuses for upstream protection of instal-
lations within the nec/ul jurisdiction.
Example fuses suitable for upstream protection are detailed
below. The Bussmann ktr-r (200v) and the kts-r (400v)
fuses are class rk1 and csa certified to c22.2 No. 248.12
Bussmann ktx-r fuses oer 200 kA (vac rms) interrupting
rating.
suitable fuses - iecm
drive rating
[kW]
200 v class
drive
400 v class
drive
0.75 ktn-r-10 kts-r-6
1.1 ktn-r-10 kts-r-6
1.5 ktn-r-15 kts-r-10
2.2 ktn-r-20 kts-r-10
3.0 ktn-r-25 kts-r-15
3.7 ktn-r-30 —
4.0 ktn-r-30 kts-r-20
5.5 ktn-r-50 kts-r-25
7.5 ktn-r-60 kts-r-30
All cabling must comply with national and local regulations on
cable cross-sections and ambient temperature.
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