20mm PVC Junction Box 2 Way Through, Round
Round PVC 2 way junction box with two 20mm conduit entries opposite each other, for a straight conduit run. The round lid fixes with 2 screws. Conduit and couplings sold separately.
- 2 wayStraight through
- 20mmConduit entries
- Round lidFixes with 2 screws
- PVCJunction box
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Alectra Hatfield 648 Jan Shoba Street, HatfieldMon to Fri 07:30 to 17:00, Sat 08:00 to 17:00Get directions
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Alectra Wonderboom Braam Pretorius Street, WonderboomMon to Sun 08:00 to 16:45Get directions
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This 2 way junction box is the straight-through one: its two 20mm conduit entries sit opposite each other, so the conduit comes in one side and carries straight on out the other. Use it on a straight run of 20mm PVC conduit pipe where the wires need a pull-through point or a join. At the end of a run you need the 1 way round end box, and where a branch leaves the run at 90 degrees, the 3 way tee junction box.
What a 2 way junction box is used for
Pulling wires through a long run of conduit in one go is hard work. A through box partway along gives the electrician a place to open up, pull the wires through and feed them on to the next section. It is also the right spot for a join in the wiring, because a join needs to sit in a box that can be opened again later, not hidden inside the pipe.
Round lid with 2 screws
The round lid covers the whole box and fixes down with 2 screws on opposite sides. Undo the two screws and the lid comes off, so the wiring inside can be checked or added to later without cutting into the conduit. Mount the box where you can still get to it once the wall or ceiling is finished.
Planning a 20mm conduit run
Every fitting on the run should be 20mm. Join lengths of pipe with a 20mm PVC coupling, push fit or glued with PVC solvent cement. As a rule of thumb: a 1 way end box where a run stops, a 2 way through box on the straight sections and a 3 way tee where the run splits. Conduit, boxes and the wiring inside them are fixed wiring, so in South Africa the work must be done by a registered electrician, who issues a Certificate of Compliance (CoC). Alectra Solutions supplies the equipment only.
Key features
- Straight through. Two entries opposite each other, so the conduit carries straight on through the box.
- Sized for 20mm conduit. Matches our 20mm PVC conduit pipe and 20mm couplings.
- Round lid with 2 screws. Undo two screws to get back into the box later.
- Pull-through and join point. Gives the electrician a place to draw wires through a long run and to make joins.
- Part of a 20mm set. Use it with the 1 way end box and the 3 way tee box to build a full run.
Specifications
| Type | 2 way through junction box, round |
|---|---|
| Entries | 2, opposite each other |
| Conduit size | 20mm |
| Lid | Round, fixes with 2 screws |
| Material | PVC |
| Sold as | One junction box with lid |
Not in the box
- 20mm PVC conduit pipe
- 20mm PVC couplings
- Wire and wire connectors
Questions people ask
A 2 way junction box has two entries opposite each other for a straight run. A 3 way box adds a third entry at 90 degrees, so a branch can leave the run. A 1 way box has a single entry and closes off the end of a run.
No. The two entries are in a straight line, so the conduit goes in one side and out the other. To change direction, use a 20mm conduit bend, or the 3 way tee box where a branch leaves the run.
No. The entries are for 20mm conduit. A 25mm run needs 25mm fittings.
Yes. The round lid fixes onto the box with 2 screws.
Junction boxes are part of the fixed wiring, so a registered electrician must do the work and issue a Certificate of Compliance (CoC). Alectra supplies the box only.
Need it fitted? Alectra Solutions supplies product only. Ask the branch and we will point you to installers in Pretoria.