The Delta Amplon RT 20,000 VA/20,000W UPS offers versatile phase configurations of 3:3 or 3:1 to suit a variety of power supply needs. Designed for both rack and tower setups, this unit does not include internal batteries but supports a minimum configuration of two External Battery Modules (EBMs) for extended power protection. Please note, the RAIL KIT IS 3915100011 is required for installation. With dimensions of 440W x 760D x 88.2H (mm) and a weight of 22.5kg, it's engineered to seamlessly integrate into your existing infrastructure.