Back-UPS 500 Technical Specifications


Back-UPS 500
DISCONTINUED : recommended replacement product BK500
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APC Back-UPS,300 Watts /500 VA,Input 120V /Output 120V, Interface Port DB-9 RS-232

Includes: Basic UPS signalling RS-232 cable, CD with software, User Manual


Output Power Capacity
300 Watts / 500 VA
Max Configurable Power
300 Watts / 500 VA
Nominal Output Voltage
Output Connections
(1) NEMA 5-15R (Surge Protection) NEMA 5-15R
(2) NEMA 5-15R (Battery Backup) NEMA 5-15R


Nominal Input Voltage
Input Frequency
60 Hz +/- 3 Hz
Input Connections
NEMA 5-15P NEMA 5-15P
Cord Length
1.83 meters
Input voltage range for main operations
103 -150V
Input voltage adjustable range for mains operation
88 -150V

Batteries & Runtime

Battery Type
Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof
Typical recharge time
7 hour(s)
Replacement Battery
RBC™ Quantity
Runtime Graph
Hover over the line on the graph above to view the runtime at any desired load
Curve fit to measured runtime data. All measurements taken with new, fully charged batteries, at typical environmental conditions, with no electrical input and balanced resistive load (PF = 1.0) output.

Communications & Management

Interface Port(s)
DB-9 RS-232
Control panel
Output power on indicator LED
Audible Alarm
Alarm when on battery : distinctive low battery alarm : configurable delays

Surge Protection and Filtering

Surge energy rating
320 Joules
Full time multi-pole noise filtering : 5% IEEE surge let-through : zero clamping response time : meets UL 1449
Data Line Protection
RJ-45 Modem/Fax protection (two wire single line)


Maximum Height
152.00 mm
Maximum Width
86.00 mm
Maximum Depth
333.00 mm
Net Weight
7.05 KG
Shipping Weight
7.95 KG
Shipping Height
234.00 mm
Shipping Width
193.00 mm
Shipping Depth
419.00 mm


Operating Environment
0 - 40 °C
Operating Relative Humidity
0 - 95%
Operating Elevation
0-3000 meters
Storage Temperature
-15 - 45 °C
Storage Relative Humidity
0 - 95%
Storage Elevation
0-15000 meters
Audible noise at 1 meter from surface of unit
40.00 dBA
Online Thermal Dissipation
15.00 BTU/hr


Regulatory Approvals
CSA, FCC Part 68, UL 1778
Standard Warranty
2 years repair or replace

Sustainable Offer Status

**The time to recharge to 90% of full battery capacity following a discharge to shutdown using a load rated for 1/2 the full load rating of the UPS.