APC 500 BACK UPS PK500M

The APC 500 BACK UPS PK500M is a line-interactive tower UPS delivering 500 VA / 500 W of backup power and surge protection for computers, tablets, and networking equipment. This unit maintains power continuity during outages and safeguards connected devices against voltage fluctuations, enabling safe shutdown procedures to prevent data loss.

Technical Specifications

• 500 VA / 500 W rated capacity


• Line-interactive topology with stepped approximation to sinewave output


• 120 Vac nominal input/output (regional 230 V variants available)


• Input frequency: 50/60 Hz ±5 Hz auto-sensing or ±1 Hz sync to mains


• Input voltage range (main operations): 140–300 V


• Output frequency: 50/60 Hz ±1 Hz


• Transfer time: 6 ms typical, 10 ms maximum


• Power factor (full load): 0.63 Battery & Charging


• 12 V nominal sealed lead-acid (VRLA) battery


• Battery life expectancy: 3–5 years


• User replaceable; compatible with RBC2 and RBC2J cartridges


• Recharge time: 6, 8, or 24 hours typical Output & Connectivity


• Three IEC 60320 C13 outlets with battery backup and surge protection


• One IEC 60320 C13 outlet with surge protection only


• RJ45 analog phone line protection for phone, fax, modem, or DSL


• Surge suppression energy rating: 273–320 Joules

Key Features

• Overload protection and automatic surge suppression


• Compact tower form factor: 91 × 284 × 165 mm, 5.73 kg


• Wide input voltage tolerance (140–300 V) accommodates utility fluctuations


• User-replaceable battery cartridge extends service life


• Data line protection safeguards connected telecommunications equipment

Typical Applications

• Personal computer and peripheral protection


• Networked office equipment and small-scale infrastructure


• Tablet and portable device charging with surge protection


• Modem, router, and DSL gateway continuity during power loss

Compatibility & Integration Operates across 50/60 Hz mains standards with regional voltage variants (120 V / 230 V). Tower mounting only; not rack-mountable. Plastic rugged enclosure in white or beige. Operating temperature range: 0–40 °C; storage: −15–45 °C.