APC Back-UPS Power Supply – Technical Issue (2003)
Check Your Product
According to the U.S. Consumer Product Safety Commission (CPSC)
Product
Back-UPS CS350 and Back-UPS CS 500 Back-up Power Supply devices
Brand
American Power Conversion Corporation (APC), of West Kingston, R.I.
Lot Codes / Batch Numbers
Not specified in CPSC notice. Check official source for details.
Product Images
Source: U.S. Consumer Product Safety Commission
American Power Conversion Corporation (APC), of West Kingston, R.I. is recalling Back-UPS CS350 and Back-UPS CS 500 Back-up Power Supply devices. The hazard is: The power supply device can fail, causing the unit to overheat, which may pose a fire hazard to cons. Based on CPSC recall notice.
Summary derived from CPSC notice
The following details were not provided by CPSC: UPC codes.
Reason for Recall
As stated by CPSC
The recalled Back-UPS® CS Uninterruptible Power Supply devices include the Back-UPS CS350 and the Back-UPS CS 500 models. The model number can be found on the front of the unit, along with the words, "Back-UPS CS" and "APC." In addition, one of the following numbers shows up on the bar code label located on the bottom of the unit: BK350, BK500, BK500BLK. The recalled power supply devices also have one of the following serial numbers - AB0048 through AB0251, BB0104 through BB0251, and JB0125 through JB0251 - which can be found on the bottom of the unit. Units with an "R" at the end of the serial number within the above ranges are not part of this recall.
Reported concern (CPSC)
The power supply device can fail, causing the unit to overheat, which may pose a fire hazard to consumers.
Recommended Action
Per CPSC guidance
Consumers should immediately stop using the power supply devices by turning off the power to all connected equipment, turning the Back-UPS CS off, and then unplugging it from the electrical outlet. To obtain a free replacement unit, consumers should contact the company.
Verify this information on the official source
For complete details and official instructions, check the U.S. Consumer Product Safety Commission (CPSC) directly.
View official CPSC recall noticePage updated: Jan 6, 2026