HP Superdome SX2000 Safety and Regulatory Information, Ninth Edition - The Sup - Page 9

Safety and Regulatory Information Disconnect Devices Disconnect Devices Disconnect devices or circuit breakers must be used to protect the system against abnormal hazards. Table 1-2 details the circuit breaker specifications. Table 1-2 Wall Disconnect Device Circuit Breaker Specification Agency approvals: Interrupt capacity Breaker type Voltage rating Input Source Circuit Interruption Ground UL, CSA, VDE 5,000 amperes Magnetic trip 250V minimum 3-pole+PE, 420V minimum 4-pole+PE 3 pole + PE or 4-pole + PE Simultaneous trip of all poles The protective earth (PE) ground wire is not switched WARNING Provide a disconnect device to protect against abnormal hazards. Systems configured with a full complement of cells, memory, and I/O and connected to a 5-wire source must have a maximum 24A 3-phase with neutral (4-pole) circuit breaker installed as part of the building installation. Systems configured with a full complement of cells, memory, and I/O and connected to a 4-wire source must have a maximum 44A 3-phase (3-pole) circuit breaker installed as part of the building installation. IOX Multiple Power Sources and Cords This equipment may be configured with dual-input line sources. Hazardous voltages and energy may be present even after the removal of a single input source. IOX Only: WARNING Remove both input power sources before replacing an internal fuse. WARNING If the system has two PDCA installed, ensure that power is removed from both PDCA before removing fuses. Chapter 1 English 9