Hammond 1590BB2F 4.7x3.7x1.49 in Diecast Box, Welded Bottom Flange

The 1590BB2F is a natural (unpainted) diecast aluminum enclosure from the 1590 Series with a spot-welded flanged bottom plate, measuring a nominal 4.7 in x 3.7 in x 1.49 in (119 mm x 94 mm x 38 mm). The welded bottom flange lets you screw the box straight down to a wall, panel, machine frame or chassis, which makes it a practical housing for control electronics, sensors and interface circuits in fixed installations.

Box and lid are diecast aluminum alloy, which is tough yet easy to machine for connectors, switches and displays. The unpainted aluminum is vibra finished for a smooth surface with no sharp edges, ready to be machined, painted or printed. Lap joint construction where the lid meets the box helps keep out dust and splashing water, and this standard version is designed to meet IP54. Side walls have a low draft angle of 2° or less, which makes mounting a PC board easier. The bottom flange is welded to the box.

Per the drawing the box measures 119.50 mm [4.705 in] long by 94.00 mm [3.701 in] wide, with an overall height of 39.25 mm [1.545 in]. Inside you get 113.77 mm [4.479 in] of length, 88.27 mm [3.475 in] of width and 33.50 mm [1.319 in] of height, and the maximum P.C. board size is listed as 84.83 mm by 110.33 mm. The lid height is 0.16 in (4 mm). With the flange, overall length is 148.24 mm [5.836 in] and the flange mounting holes are spaced 136.96 mm [5.392 in] apart along the length.

The assembly ships with the box, lid and 4 cover screws that thread into factory-tapped 6-32 UNC holes; the recommended torque is 50-55 cN.m [71-78 ozf.in]. To upgrade to IP65, add the 1590BBGASKET silicone gasket kit, torque the lid screws to 25-30 cN.m [36-43 ozf.in], and consider the stainless steel O-ring cover screws (1590WMS100). Shipping weight is 0.62 lbs (0.28 kg).