Terminal junction box (EU / panel)
4×4 in (100 × 100 mm) PVC utility box · 4 screw terminal strips (L, N, S1, S2) × 5 clamps · 450 V 32 A

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: 4×4 in PVC utility (junction) box with screw terminal strips
Pins
- L 1
- L 2
- L 3
- L 4
- L 5
- N 1
- N 2
- N 3
- N 4
- N 5
- S1 1
- S1 2
- S1 3
- S1 4
- S1 5
- S2 1
- S2 2
- S2 3
- S2 4
- S2 5
Ratings and limits
| Terminals | 450 V AC, 32 A, 0.5–6 mm² (20–10 AWG) |
|---|---|
| Box | flame-retardant PVC, 100 × 100 × 50 mm, ½ in and ¾ in knockouts |
| Strips | L, N and two switch-leg strips (S1, S2), five clamps each |
How to use it
Where a branch circuit splits: the cable from the breaker lands in the box, a drop runs to the switch and its switched leg comes back on S1, then on to each lamp; neutrals join on N. Every splice must be inside a box with its cover on, and stay reachable (PEC / NEC 314).