The 1591VC is a clear polycarbonate lid made to fit 1591V enclosures, the 120 x 120 x 94 mm (4.72 x 4.72 x 3.7 in) size of the 1591 series of ABS multipurpose enclosures with card guides.

The lid is molded from clear polycarbonate with a UL94 V-0 flame rating and carries an IP54 rating. It measures 4.72 x 4.72 x 0.24 in (120 x 120 x 6 mm) and has a shipping weight of 0.09 lbs (0.04 kg).

In the series ordering tables, 1591VC is listed as the clear lid accessory for the 120 x 120 x 94 mm row, alongside enclosures such as 1591VBK, 1591VGY, 1591VSBK and 1591VSGY, and the bottom flange models 1591VF2BK, 1591VF2GY, 1591VF2SBK and 1591VF2SGY. The enclosure body is a separate part number.

The 1591V enclosures it fits are 120 x 120 x 94 mm (4.72 x 4.72 x 3.70 in) boxes with card guides molded into all side walls for vertical mounting of 1.5 mm (0.062 in) printed circuit boards, and lap joint construction designed to meet IP54. Enclosure bodies in this size include the flame retardant 1591VBK and 1591VGY and the general purpose 1591VSBK and 1591VSGY.

The 1591VC is RoHS and REACH compliant and ships in shrink wrap. Its UPC is 623980803876 and its UNSPSC code is 39121301. As with other plastic parts in the series, some chemicals such as acetone, ketones, strong solvents and thread locking compounds can damage or weaken plastic, so use only cleaners listed as plastic safe.