APC Back-UPS Pro 420PNP 420VA UPS Battery Backup Broken Face Plate 420W

APC Back-UPS Pro 420PNP 420VA UPS Battery Backup Broken Face Plate 420W

The APC Back-UPS Pro 420PNP is a 420VA / 260W tower-style uninterruptible power supply designed to protect desktop computers and other sensitive electronics from power outages, surges, and voltage fluctuations. This unit is being sold with a broken front face plate — see photos for the extent of the damage. The rear panel, outlet block, and chassis are otherwise intact.

Specifications & What's Included

• Model: APC Back-UPS Pro 420PNP
• VA Rating: 420 VA
• Maximum Output Power: 260W
• Input Voltage: 120V AC, 50/60 Hz
• Output Voltage: 120V AC
• Outlets: 4 × NEMA 5-15R (rear panel)
• Interface: DB9 serial port (rear panel, for PC communication/management)
• Overload protector: push-to-reset button (rear panel)
• Form Factor: Tower / Desktop
• Battery: Not included — compatible replacement is CSB GP1270 F2 12V 7.0Ah sealed lead-acid (or equivalent APC RBC2)
• Country of Manufacture: USA
• Certifications: UL Listed, FCC
• Includes: Power cord only
• Does NOT include: Batteries, front face plate (broken/damaged)

Applications

The APC Back-UPS Pro series was a widely used line of consumer and small-office UPS units from the late 1990s and early 2000s, designed to keep desktop computers, monitors, and networking equipment running during brief power outages and to protect against surges and line noise. The 420PNP model is a plug-and-play unit intended for computers with a serial port for UPS monitoring software. These units are still commonly used as a budget power protection solution for home offices, workstations, and small network closets. A unit with a damaged face plate but an otherwise functional chassis is useful as a parts source, for repair/restoration, or for a buyer who needs the internal components or outlet block.