MULTI-BRANCH RM PDU NEMA L21-20 IN 1 L21-20R APC's Rack Automatic Transfer Switch (ATS), also known as the Redundant Switch, is a high availability switch that has two input power cords, one for each AC line, which provide redundant power to connected equipment. The Rack ATS is designed to supply power to the connected load from a primary AC source. If that primary source becomes unavailable for whatever reason, the Rack ATS will automatically begin sourcing power from the secondary source. The transfer time from one source to the other is seamless to the connected equipment. The Networked units have built-in network connectivity, which allows for remote management via Web, SNMP, or Telnet interfaces.
Main Specifications Product DescriptionAPC Automatic Transfer Switch redundant switch Device TypeRedundant switch - rack-mountable Rack Size19" - 1U Dimensions (WxDxH)17 in x 12 in x 1.8 in Weight15 lbs Input VoltageAC 120/208 V Output VoltageAC 208 V Output connector(s)1 x power NEMA L21-20 Manufacturer Warranty2 years warranty General Device TypeRedundant switch - rack-mountable Height (Rack Units)1U Rack Size19" Width17 in Depth12 in Height1.8 in Weight15 lbs Power Device Input VoltageAC 120/208 V Frequency Required50/60 Hz Input Connector(s)2 x power NEMA L21-20 Output VoltageAC 208 V Power Output Connectors Details1 x power NEMA L21-20 Expansion / Connectivity Interfaces1 x management - 9 pin D-Sub (DB-9) Miscellaneous Cables Included1 x power cable - integrated - 3 ft Rack Mounting KitIncluded Compliant StandardsFCC Class A certified, UL, VCCI, cUL Manufacturer Warranty Service & Support2 years warranty Service & Support DetailsLimited warranty - parts and labor - 2 years Environmental Parameters Min Operating Temperature32 °F Max Operating Temperature113 °F Min Storage Temperature-13 °F Max Storage Temperature149 °F Humidity Range Operating0 - 95% Humidity Range Storage0 - 95%