Keysight E8402A, E8404A C-Size Mainframes User and Service Guide 279Input Power Requirements Keysight E8402, E8404A Product Specifications+5VSTDBY:Up to 1A may be available if provided by the user throughpins 8 and 21 of the diagnostic connector.Input Power RequirementsInput Voltage:90VAC Min to 264VAC Max, Single continuous rangeInput Frequency:47Hz Min to 66Hz Max (across full input voltagerange)360Hz to 440Hz: (Not Recommended. Leakage currentsmay exceed safety limits, 132VAC Max)DCV Input:(Not Recommended. Input connector is not certified forDCV input.)Inrush Current:E8402A:Input Voltage 110VAC:25A TypicalInput Voltage 264VAC:55A TypicalE8404A:Input Voltage 110VAC:40A TypicalInput Voltage 264VAC:60A TypicalNote: If inrush current causes mains supply voltage to temporarilydrop below the required minimum voltage (90VAC), the mainframemay not turn on properly.Total Input Power may be estimated by the following expressions:1.4 * (Output Power + 70W)Notes: Total Power Input in Watts or VA, Power FactorCorrected.Output Power in Watts = Sum of Voltage times Currentfor the sevenVXI output voltages.Expressions are valid for full output load and 90VAC.Efficiency increases slightly with higher input voltage.Efficiency decreases slightly with lower output load.Power Switch: On/Standby switch on front.Indicators: Green when On, amber in Standby and lineconnected.May be switched On/Standby remotely via Diagnostic+24V +1.20V / –0.72V 150mV 150mV-24V –1.20V / +0.72V 150mV 150mV-5.2V –0.26V / +0.156V 50mV 50mV-2V –0.10V / +0.10V 50mV 50mVaSpecifications apply at the backplane, 0-55C.VoltageAllowedVariationaRipple/NoiseDC LoadaInducedRipple/Noisea
