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Series 1003SI Fused terminal blocks - 1” x 1/4” fuses

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Series 1003SI fused terminal blocks are available in unearthed versions from 1 to 5 poles and earthed versions from 3 to 5 poles.

A common dovetail enables mixed assemblies to be constructed by clipping on additional 1 pole lengths to provide multiple versions of fused and unfused terminals.

All variations can be supplied with or without wire protectors.

Earth Screws & Washers (Optional)
Screws: 1003SIES – M3.5×12, Posi
Washers: 1003SITW – M3.5

Technical Details

Mouldings: nylon 6.6, grey, UL94 V2,
(fuseholder black)
Inserts: brass, tinned
Screws: M3.5 steel, zinc plated, chromed
Screw tightening torque: max: 0.8 Nm
Temp. limits: max short term: 160º C
continuous: 100º C
Current rating: to EN 60 127-6: fuseholders: 16A
to EN 60 598: terminal blocks: 25A
to EN 60 998: terminal blocks: 32A
Voltage rating: terminal blocks: 500v
fuseholders: 250v
Conductor size: without wire protectors: up to 10mm2
with wire protectors: up to 4mm2
Wire stripping length: 7.5mm2 – 8.0mm2
Fuse size: 1” x 1/4” or 1.1/4” x 1/4”
Fixing centres: peg to earth screw: 18mm
peg to fixing hole: 24mm

Glow wire options available for installations in accordance with
EN 60 335-1 upon request.


Marking: special printing available. Please provide sketch.

High temperature: details on request.

Series 1003SI Fused terminal blocks

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