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Junction Box Selection Chart
Is the
location
accessible
Is there a
suitable
fixing
position
Traditional
Junction
Boxes are
acceptable
YES
YES
NO
NO
Maintenance free
terminals required
Cable clamping
recommended
Description
N
o
of Terminals
Terminal Rating Reference
Benefits / Considerations
Downlighter Junction Box
3 x 3 x 1.5mm
2
1 x 2 x 1.5mm
2
16A
J501
Provided with cable clamps and
separate terminals for flex
Maintenance Free Junction Box
3 x 4 x (0.5-4.0mm
2
)
32A
J803
Suitable for use in inaccessible
locations
4 x 4 x (0.5 - 4.0mm
2
)
20A
J804
Traditional Junction Boxes
4
20A
J201
Acceptable for locations which are
accessible
4
20A
J301
3
30A
J401
6
20A
J601
Junction Boxes
& Ceiling
Accessories