APC SurgeArrest Professional PRO7 (4Z0842P07546)

Overview

The APC SurgeArrest Professional PRO7 is a seven-outlet surge protector manufactured by APC.

The documented example bears serial number 4Z0842P07546 and was manufactured in September 2008.

Unlike the 2017 APC PRO7 specimen documented by the OldSurge Archive, this example exhibits substantial enclosure yellowing while remaining complete and operational.

Documented Example

OldSurge ID: OS-0011 (or next available accession number)
Model: PRO7
Serial Number: 4Z0842P07546
Manufacturing Year: 2008

Physical Description

The APC SurgeArrest Professional PRO7 utilizes a rounded upper housing and a flat outlet section containing seven grounded outlets.

The documented example exhibits significant yellowing of the enclosure. Areas surrounding several receptacles have retained noticeably lighter coloration where plugs appear to have remained installed for extended periods.

The pattern of discoloration suggests:

One two-prong device occupied the outlet nearest the end opposite the power-cord entry.
Multiple grounded three-prong devices occupied the adjacent outlets.
The outlet closest to the power-cord entry appears to have remained unused, as its surrounding plastic exhibits discoloration similar to the rest of the enclosure.

The yellowing pattern provides a visual record of long-term usage and aging.

Physical Description

The documented example exhibits substantial yellowing across most exposed enclosure surfaces.

Areas adjoining several outlet positions have retained noticeably lighter coloration. The pattern appears consistent with long-term occupancy by plugged-in devices. The outlet nearest the end opposite the power-cord entry appears consistent with prolonged use by a two-prong device, while several adjacent outlets appear to have been occupied by grounded three-prong plugs. The outlet nearest the power-cord entry appears relatively unused.

The resulting discoloration pattern provides a visual record of long-term usage and environmental aging.