In the e world where businesses can't stop and downtime is measured in dollars, american power conversion apc provides protection against some of the leading causes of downtime, data loss and hardware damage power problems and temperature. As a global leader in power availability solutions, apc sets the standard in its industry for quality, innovation and support. Its comprehensive power solutions, which are designed for both home and corporate environments, improve the manageability, availability and performance of sensitive electronic, network, communications and industrial equipment of all sizes. Rbc4 for the apc bk600ec, bk650mi, bp650ipnp, sbp650si, suvs650i, su620inet, sc620i models