It may pertain to product distribution.http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BR1500LCD&tab=features
argentina, bolivia, brazil, canada, canada, chile, colombia, costa rica, dominican republic, ecuador, el salvador, guatemala, honduras, jamaica, mexico, netherlands antilles, nicaragua, panama, paraguay, peru, puerto rico, trinidad and tobago, united states, uruguay, venezuelahttp://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BX1500LCD&tab=features
canada, canada, united states
PS - I'd go with buying from the local seller and keeping the receipt.
If it fails, shipping it back to the manufacturer could be a hassle.