B-Line Eaton series imperial cable tray and ladder, 4" Height, 13.692" Length, 12" Width, Series 2-5 vertical inside bend, Aluminum, 30° Angle, 12" Ra

A vertical inside bend carries the tray run up or down while keeping the cables on the inside of the turn, so the fitting bends toward the tray floor. The Eaton B-Line 4A-12-30VI12 makes that direction change at 30 degrees with a 12 inch bend radius. Use it where a ladder run has to climb a wall or drop over an obstruction without breaking the run. If the tray needs to bend the other way, with the cables running over the outside of the curve, that is a vertical outside bend instead, not this part.

That is exactly what it is built for. The 4A-12-30VI12 fitting is 12 inches wide with a 4 inch side rail height, matching a 12 inch wide, 4 inch deep tray. It is aluminum, so it matches an aluminum tray run for both connection and galvanic compatibility. A tray of a different width or rail depth needs the matching fitting in that size, not this one.

The bend radius sets how sharply the cable is forced to turn. This fitting is formed on a 12 inch radius, so cables with a minimum bending radius of 12 inches or less can pass through without being over-bent. Large power feeders and some fiber runs call for a bigger radius than that, so check the cable manufacturer's minimum bend radius against the 12 inch figure before you commit to this fitting.

Allow 13.692 inches of run length for the fitting, measured along its length. The curve itself is formed on a 12 inch radius at 30 degrees, so the tray centerline sweeps through that radius before returning to straight. Lay this out before you set your trapeze or wall supports, since the bend has to land clear of them.

The 4A-12-30VI12 vertical inside bend carries a CSA certification, which is the listing Canadian inspectors look for on cable tray and fittings.

The 4A-12-30VI12 is the bend fitting itself. Splice connectors and the bolt hardware that joins it to the straight tray sections are ordered separately, so add a set for each end of the fitting when you place the order.

Order Eaton B-Line part number 4A-12-30VI12. The code reads out as 4 inch aluminum rail, 12 inch width, 30 degree vertical inside bend on a 12 inch radius.

It weighs 3.858 pounds. Aluminum construction keeps the fitting light for overhead work and avoids adding much load to trapeze hangers, though you still need supports on both sides of the bend to carry the run.