JB425C 25mm 4 Way Shallow Electrical Conduit Junction Boxes

Description

Rylec JB425C. 25mm 4 Way Shallow Conduit Junction Box. PVC Grey. Round.

The Rylec JB425C is a 25mm four way shallow PVC junction box for use with 25mm corrugated or rigid electrical conduit systems. Four conduit entries — the cross-junction configuration where conduits enter from all four directions, or any combination of up to four conduit connections at one point. Round shape, grey PVC, shallow profile for surface mounted conduit installations. Sold individually.

• Rylec JB Series — JB425C 25mm 4 Way Shallow Junction Box
• 4 way — four conduit entries (cross junction)
• Shallow profile — low protrusion for surface mount conduit installations
• 25mm diameter conduit entries
• Round shape
• PVC (Polyvinyl Chloride) — grey
• Suits 25mm corrugated or rigid electrical conduit systems
• Sold individually

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Where the Rylec JB425C 4 Way Junction Box is Used

The JB425C is the 25mm four way shallow junction box — the cross-junction box used wherever four 25mm conduit runs meet at a single point. In commercial and industrial surface-mounted conduit installations, four-way junctions occur at distribution hubs where a main conduit run intersects with multiple branches — for example at a central point where conduits distribute circuits in four directions throughout a building. The 25mm size is specified where larger cable bundles or heavier cables require the greater bore of the 25mm conduit over the standard 20mm residential size.

The four conduit entry positions on the round junction box body are positioned at 90 degrees to each other, providing the four entry points needed for a cross junction layout. Not all four entries need to be used — the JB425C can also serve as a 3 way or 2 way junction by leaving unused entry positions capped, providing flexibility where a future additional conduit connection may be anticipated.

The Rylec JB range for 25mm conduit covers 1 way (JB125C), 2 way straight (JB225C), 2 way right angle (JB2590C), 3 way (JB325C), and 4 way (JB425C — this product). The 20mm equivalent is JB420C.

Q: What does "4 way" mean on the JB425C?
A: "4 way" means the box has four conduit entry points positioned at 90 degrees to each other in a cross configuration. All four entries can be used simultaneously, or fewer entries can be used with unused positions left capped.

Q: What is the difference between JB425C (25mm) and JB420C (20mm)?
A: Both are 4 way shallow cross-junction boxes — the JB425C suits 25mm conduit and the JB420C suits 20mm conduit. Choose based on the conduit size used in the installation.

Q: What conduit size does the JB425C suit?
A: The JB425C suits 25mm corrugated flexible conduit and 25mm rigid PVC conduit.

Warranty

This product is backed by an extended manufacturer warranty - click here for details.