The RL6115BK is a compact 80 x 60 mm ABS plastic project enclosure from the RL Series of shallow-lid boxes, designed to house P.C. boards for hand-held use or wall mount. It suits OEM engineers, electronics builders and integrators who need a black housing for a small circuit board assembly. Its 80 mm x 60 mm footprint is the smallest in the RL range, and at 40 mm tall it is the deeper of the two heights offered on that footprint (RL6105 is the 30 mm version).

The enclosure is molded in black general purpose ABS plastic with a light texture and uses two-part construction. Both the box and the shallow lid carry a smooth recessed area for a membrane, label or silkscreen, and P.C. board standoffs are molded into both halves, with bosses that accept M2.6 self-tapping screws.

Nominal size is 3.15 in x 2.36 in x 1.57 in (80 mm x 60 mm x 40 mm), with inside dimensions of 74.72 mm [2.94 in] long, 54.72 mm [2.15 in] wide and 34.70 mm [1.37 in] high. It accepts a maximum P.C. board of 73.91 mm x 53.91 mm per the series ordering table (74.43 mm x 54.43 mm on the part page). This is the version without wall mounting flanges; the flanged equivalent is RL6115-FBK. Shipping weight is 0.11 lbs (0.05 kg).

Each purchased assembly includes the box, lid, 4 PCB screws and 4 lid screws, and the recommended screw torque is (43-50) Ozf.in / (30-35) cN.m. The RL6115BK is designed to meet IP54, uses UL94 HB rated ABS, and is RoHS and REACH compliant. Some chemicals can damage or weaken the plastic, including acetone, ketones, thread-locking compounds, cutting or tapping fluid and strong solvents, so use only plastic-safe cleaners. The enclosure can also be factory modified (milling, drilling, printing), and solid models are available in .stp or .x_t. The light gray counterpart of this size is RL6115.