The RP1055 is a light gray, general purpose ABS water-tight enclosure with an opaque lid, part of the RP Series. It is a near-square, low-profile box sized for compact square-format circuit boards, and is intended for OEM engineers, integrators and electronics builders who need a sealed housing for printed circuit boards or components.

The ABS body carries a UL94 HB flame rating. Its two piece tongue & groove lid, sealed by a rubber gasket that is field installed, is designed to meet IP65 against oil, dust and water, and the lid top includes a smooth recessed area for a membrane, label or silkscreen.

Nominal size is 3.35 in x 3.15 in x 1.57 in (85 x 80 x 40 mm); the series ordering table lists it as 3.43 in (87 mm) x 3.23 in (82 mm) x 1.57 in (40 mm), and the drawing shows 86.50 mm [3.41 in] x 81.50 mm [3.21 in] x 40.00 mm [1.57 in] overall. Inside, the drawing gives 34.50 mm [1.36 in] of height and 74.12 mm [2.92 in] of width, 79.22 mm [3.12 in] inside length, and the 40 mm depth keeps the enclosure low-profile. PC board mounting posts accept M3 self-tapping screws and take a board up to 77 mm long and 72 mm wide.

The lid is secured with M3.5-0.6 x 10mm self-captivating screws threaded into corrosion resistant bushings for repeated assembly and disassembly; recommended torque is 43-50 ozf.in (30-35 cN.m). Each RP1055 ships in a bag with the box, lid, string gasket, 4 PCB screws and 4 lid screws. Optional inner panels are STC106 (ABS, 3mm) and STA106 (metal, 1mm), and RP106GASKET is the replacement EPDM gasket 2-pack. The part is RoHS and REACH compliant.