NetSure™ 12V DC Power System Key Features nHigh power density – up to 24 kW (12V DC at 2000 A) per shelf in three rack units (5.25") nInterchangeable 3000 watt rectifiers and battery backup units, each slot accommodates either unit nBattery backup units that deliver battery backup for 90 seconds or operate in power boost mode to supplement power output of the rectifiers nHot swappable – allows for system expansion without disruption nExpandable – parallel up to three shelves per system for up to 72 kW (12V DC at 6000 A) per system nOperates over a wide AC input voltage range with multiple input configurations nSafety compliance – UL 60950, CAN/CSA-C22.2 No. 60950-1-03, GR-3160, CE mark, RoHS, REACH Compact, modular design provides a total DC power solution, complete with battery backup, for a wide range of data rack applications. Description The modular NetSure 12V DC power system provides up to 6000 amps at 12 volts DC via high efficiency switch mode rectifiers rated at 3000 watts (250 amps) each and battery backup units (BBUs) rated at 3000 watts (250 amps) each. It can be configured with up to three shelves rated at 2000 amps each. The system also accommodates a System Control Card (SCC) that controls and monitors the rectifiers and BBUs while communicating to the rack management system. BBUs, which can be installed in any rectifier slot, can be operated in two modes. In the classic backup power mode – during the loss of AC input – each BBU can deliver 3000 watts for 90 seconds. The BBUs also provide a power boost feature that delivers additional power to the system when the peak power requirement of the load temporarily exceeds the output capacity of the installed rectifies or a settable power limit value. The modular design allows the power system’s capacity to expand as your system needs grow. Each 12V DC power shelf can accept a combination of nine individual, plug-in rectifiers or battery backup units that can be easily installed live without system interruption. Each shelf provides 24000 watts (2000 A max) at 12V DC in three rack units (5.25") of height. The SCC can manage up to three shelves for a maximum system capacity of 72000 watts (6000 A max) at 12V DC. A rectifier is also available at 3300 watts (275 amps) maximum output for applications requiring even higher power density. Application Standard Features The NetSure 12V DC power system is ideal for data center racks and cabinets, either custom or standard (such as Open Compute Project). nEthernet interface to rack management system via SNMP Ordering Information nSystem alarming nCurrent and power limiting nOver-voltage protection nLoad sharing nOver-temperature protection nEmergency shutdown 12V Rectifier (left) Battery Backup Unit (right) EN605DRB-NS12VDC / 1115 Model Number PSS12/2000-19BC PSS12/2000-19B M520H R12-3000 B12-3000 R12-3300 Part Number 588706000xx* 588706000xx* 1M520HNA 1R123000 1B123000 1R123300 Description 12V DC power main shelf 12V DC power expansion shelf 12V DC System Control Card (SCC) 12V rectifier, 3000 watts 12V battery backup unit, 3000 watts 12V rectifier, 3300 watts * Several options are available. 12V DC Power System Shown with Six 12V Rectifiers, Three BBUs and One SCC 1 NetSure™ 12V DC Power System Technical Specifications Input 208 VAC / 240 VAC nominal single-phase with range of 176 VAC to 264 VAC 200 VAC / 208 VAC / 240 VAC nominal three-phase with range of 176 VAC to 264 VAC 380 VAC / 415 VAC / 480 VAC nominal three-phase (4-wire + PE) with range of 323 VAC to 528 VAC Voltage, Rectifier and BBU 200 VAC / 208 VAC / 220 VAC / 240 VAC / 277 VAC nominal single-phase with range of 176 VAC to 305 VAC Current, Rectifier 18.3 amps maximum at full power and 176 VAC Current, BBU 0.55 amps maximum at 176 VAC Circuit Protection Fuses located in each line input of rectifiers and BBUs Efficiency 94% typical Voltage, Shelf Output Voltage Current, Shelf Current, Rectifier Current, BBU Capacity, BBU Regulation Dynamic Response Filtering 12.3 VDC nominal, adjustable from 12.0 VDC to 13.2 VDC 2000 amps maximum 250 amps maximum at 12.0 VDC (3000 watts maximum) 250 amps maximum at 12.0 VDC (3000 watts maximum) for 90 seconds 75 Watt-Hours, 1500 cycles Steady state output voltage remains within ±1 % of the pre-adjusted voltage for any load current from no load to full load and over the specified input voltage range For a step load change within the range of 10 % to 90 % of full rated current, the maximum voltage transient will not exceed 5 % of the initial steady state voltage Wide band noise does not exceed 120 mV peak to peak Protection Over-Voltage Over-Current Power Limit Over-Temperature Internal Fault On Output Each rectifier and BBU will automatically shut down and lock out should its output voltage exceed a value set by the controller, maximum set point is 13.2 VDC. Unit will automatically attempt to restart once. A second (backup) over-voltage protection circuit will shut down and latch off the unit if the voltage exceeds 14.0 VDC. Adjustable from 25 amps to 250 amps per rectifier and BBU Non-adjustable limit of 3000 watts maximum per rectifier and BBU Each rectifier and BBU will automatically shut down if the internal temperature of the module exceeds a predetermined value. Operation will automatically resume after the over-temperature condition is removed. Each rectifier and BBU contains an output blocking (ORing) circuit which prevents an internal fault in the unit from affecting the bus voltage. Physical Characteristics – Weight and Dimensions (H x W x D) Shelf 17.5 kg (38.5 lb) without AC cords, 132 mm x 483 mm x 656 mm (5.2" x 19" x 25.8") Rectifier 3.0 kg (6.6 lb), 124 mm x 41.4 mm x 453 mm (4.9" x 1.6" x 17.8") BBU 4.1 kg (9.1 lb), 124 mm x 41.4 mm x 453 mm (4.9" x 1.6" x 17.8") Environmental Operating Temperature Storage Temperature Humidity Altitude EMC Safety Compliance -10 °C to +45 °C (+14 °F to +113 °F) without BBUs, 0 °C to +45 °C (+32 °F to +113 °F) with BBUs -40 °C to +85 °C (-40 °F to +185 °F) without BBUs, consult manual for BBU storage temperature specifications 0 % to 95 % relative humidity, non-condensing -200 feet to 10000 feet, maximum operating ambient temperature should be derated linearly (3 °C per 1000 ft.) at elevation above 6000 ft This unit conforms to the requirements of FCC Part 15, Subpart B, Class A and EN 300 386, Class A for radiated and conducted noise UL 60950, CAN/CSA-C22.2 No. 60950-1-03, GR-3160, CE mark, RoHS, REACH EmersonNetworkPower.com/EnergySystems (North America) EmersonNetworkPower.eu/EnergySystems (EMEA) © Emerson Network Power, Energy Systems, North America, Inc. 2015. Business-Critical Continuity™, Emerson Network Power™, the Emerson Network Power logo, Emerson™ and Consider it Solved are service marks and trademarks of Emerson Electric Co. EnergyMaster ™, eSure™, NetPerform™, NetReach™, NetSpan™, NetSure™ and NetXtend™ are trademarks of Emerson Network Power, Energy Systems, North America, Inc. Any other product, brand, or company names or logos are the property of the respective owner. 2 While every precaution has been taken to ensure accuracy and completeness herein, Emerson Electric Co. assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or for any errors or omissions. Specifications subject to change without notice. EN605DRB-NS12VDC / 1115