Tripp Lite PDUMH20AT Metered 1U 120V 20A 12 ft PDU with Dual-Input Auto Transfer Switching Tripp Lite PDUMH20AT Metered 1U 120V 20A 12 ft PDU with Dual-Input Auto Transfer Switching

Tripp Lite's 120V 20A metered PDU system with Automatic Transfer Switching (ATS) is a 16 outlet PDU with a digital display to indicate total PDU power consumption in amps. Outlets are factory programmed for sequential turn-on at 250 millisecond intervals when the PDU is first energized to prevent inrush-related equipment interaction on start-up. Supports 1U rackmount installation in a 2 or 4 post rack. Included are 16 NEMA 5-15/20R outlets and two 12 ft. L5-20P input power cords, each with secure 5-20P adapter. Built-in card slot supports optional SNMPWEBCARD for permanent upgrade to a switched & monitored PDU system. SNMPWEBCARD can also be used as a configuration tool to custom program PDU power-on and power-off sequences with user-specified time delays in response to loss and restoration of primary input power.

Optional integrated ATS / Auto-Transfer Switch provides a redundant power option for networking and server applications with non-redundant internal power supplies. In ATS mode, the attached power cord serves as the PRIMARY input and the included detachable cable serves as the SECONDARY input to the ATS. The ATS will normally maintain continuous output to all outlets as derived from the primary input cable. If the primary power source becomes unstable or fails altogether in relation to the secondary, the ATS will switch over to the secondary power source until the primary input is restored and stable. Super-fast switchover between primary and secondary power sources occurs within 2-7 milliseconds. ATS functionality is supported by any two 120V AC power sources, regardless of phase angle, to offer support for a variety of advanced redundant power networking applications.

Enables fault tolerant hot-swappable UPS protection when used with a single UPS and fully redundant UPS protection when each cord is connected to a separate UPS system. In a two-UPS environment, the primary input cable must be supported by a full time sine wave online UPS. Tripp Lite SmartOnline series is highly recommended for use as the primary UPS in a two-UPS application. ATS configurations utilizing separate mains circuits, backup generators and even separate utility power grid feeds are fully supported. On-board ATS processor constantly evaluates power quality on both input sources to prevent transfer to the secondary source when unavailable or of lower quality than the primary source. Front input LEDs display primary or secondary power availability.