3-Phase Metered PDU, 5.7 kW, 27 outlets (21 5-15/20R, 6 L6-20R), 208/120V output, 6 ft NEMA L21-20P input connection - Metered 5.7kW 3 Phase 208/120V PDU; 70 in. / 178cm 0U vertical rackmount - Reports input current per-phase via built in current meters - NEMA L21-20P (3P+N+E) 208V 3 phase input; 6 ft. / 1.8m line cord - 27 outlets total; 21 5-15/20R (120V), 6 L6-20R (208V) - Toolless button-mount installation; cord retention brackets included Tripp Lite 3 phase Metered PDU / Power Distribution Units offer real-time local reporting of current levels in amps via set of 3 built-in digital meters. Enables visual monitoring of PDU current levels to preserve proper loading balance and prevent circuit overloads as additional equipment is added. Offers reliable rackmount multi-outlet power distribution from any protected UPS, generator or mains input power source. High quality design includes rugged all-metal housing and secure rackmount installation with included mounting accessories.