B-Line Eaton series imperial cable tray and ladder, 4" Height, 11.598" Length, 30" Width, Series 2-5 vertical outside bend, Aluminum, 30° Angle, 12" R

A vertical outside bend carries the tray run over an obstruction or up a change in elevation, with the tray bending away from the load side. The Eaton B-Line 4A-30-30VO12 turns the run through 30 degrees on a 12 inch inside radius, so it suits a ladder tray that has to climb or drop over ductwork or structural steel rather than turn horizontally. If your direction change is side to side, you need a horizontal bend instead, and if the tray has to bend toward the cable load side, that is a vertical inside bend.

Figure roughly 11.598 inches of added run length for the 4A-30-30VO12, which is the stated length of the fitting itself on a 12 inch radius. Take that off your straight section when you cut and lay out the elevation change, and allow for splice plate hardware at both ends.

Aluminum is the choice where weight and corrosion matter more than raw load capacity, and this bend fitting is aluminum throughout. At 4.96 pounds for a 30 inch wide fitting it is easy to handle on a lift or ladder, and it resists corrosion without galvanizing or paint, which is why it is common in outdoor, coastal, and wet process areas. Steel tray is the alternative where the spec calls for higher loading or where the run has to be grounded and bonded to a steel system already in place.

The 4A-30-30VO12 is the bend fitting itself. Splice plates, bolts, and any hanger or support hardware at the change of elevation are ordered separately, and you will want a support close to the bend on both sides since fittings are not designed to carry span load on their own.

Order Eaton B-Line part 4A-30-30VO12. The number reads out as 4 inch rail height, aluminum, 30 inch width, 30 degree vertical outside bend, 12 inch radius, in the Series 2-5 imperial ladder tray line. That single designation covers the whole configuration, so no suffix is needed.

CE marked. That is the certification on record for the 4A-30-30VO12 aluminum vertical outside bend, which matters if your submittal package or export job calls for CE marked components.