Over 370,000 conterfeit circuit breakers, labeled with the “Square D” logo have been recalled.  They can fail to trip when overloaded and consequently pose a fire hazard.  The products were sold by electrical product distributors across the country between May 2005 and June 2006.  There are pictures of the counterfeit circuit breakers on the CPSC website

The following is a description of the products involved in the recall: “The counterfeit circuit breakers are black and are labeled as Square D QO-series models 115, 120, 130, 215, 220, 230, 240, 250, 260 and 2020 and Square D QOB-series models 115, 120, 130, 220, 230, 250, 260 and 1515. Actual Square D circuit breakers have (a) the amp rating written on the handle in white paint on the front of the breaker (authentic Square D circuit breakers manufactured prior to 2003 did not have white paint on the amperage numbers); (b) the Square D insignia molded onto the breaker side, and; (c) a yellow chromate mounting clip with half of the top of the clip visible. If your breaker, labeled as Square D, does not match this description, it could be counterfeit.”