2.5. Specifications

2.5.1. AC Input Specifications

Input Voltages Available AC Input voltage specified at time of order and cannot be modified	440 Vac, 3-phase 480 Vac, 3-phase
Input Voltage Tolerance	± 10%
Input Voltage Frequency	50-60 Hz
Power Factor Measured at max power	> 0.96
Input Isolation Measured line-to-ground	± 2000 Vdc
AC Circuit Protection	UL/CSA listed circuit breaker

Voltage Ripple	Model specific. Refer to models table.
Line Regulation	Voltage control: ± 0.04% of rated voltage Current control: ± 0.03% of rated current
Load Regulation	Voltage control: ± 0.02% of rated voltage Current control: ± 0.06% of rated current
Stability FWHM, measured at 25°C over 8 hrs after 30 min warm-up	± 0.10%
Temperature Coefficient	Voltage control: 0.04%/°C of rated voltage Current control: 0.06%/°C of rated current
Efficiency	Up to 96%. Model specific. Refer to Models table.
Slew Rate Standard models	< 170 ms, output voltage change from 0 to 63% < 200 ms, output current change from 0 to 63%
Slew Rate Models with High Slew Rate (+HS) Option	< 5 ms, output voltage change from 0 to 63% < 10 ms, output current change from 0 to 63%
Output Isolation Measured output-to-ground Models rated ≤ 1000 Vdc	± 1500 Vdc
Output Isolation Measured output-to-ground Models rated > 1000 Vdc or models with High Isolation Output (+ISO) option	± 6000 Vdc

Resolution, Digital Programming Front panel or communication interfaces	12-bit, 0.025% of rated voltage, current or power
Accuracy, Programming Output value to set point value	Voltage: ± 0.075% of rated voltage Current: ± 0.075% of rated current
Accuracy, Measurement Output value to returned value	Voltage: ± 0.20% of rated voltage Current: ± 0.20% of rated current
Trip Settings Range	Over Voltage: 10% to 110% of rated voltage Over Current: 10% to 110% of rated current
Computer Command Protocol	Standard Commands for Programmable Instruments (SCPI) (ASCII-based commands)
Remote Sense Limits Wired; Available on models rated ≤ 1000 Vdc	3% maximum voltage drop from output to load
Analog I/O 4 analog programming inputs 2 analog measurement outputs Reference signal provided	Analog programming inputs: 0-10 V Analog programming impedance: 10 kΩ Analog measurement outputs: 0-10V, 5 mA capacity Analog measurement impedance: 100 Ω Analog reference signal: 10 V, 5 mA capacity, 1 Ω
Digital I/O 5 digital control inputs 15 digital monitoring outputs Reference signal provided	Digital control inputs: 5 V Digital control inputs impedance: 10 kΩ Digital monitoring outputs: 5 V, 5 mA capacity Digital reference signal: 5 V, 25 mA capacity

Front Panel Programming	Two machined aluminum 10-turn knobs and keypad
Communication Interfaces Standard	RS232: D-sub DB-9, Female
External User I/O Port Standard	37-pin D-sub DB-37, female Referenced to ground; isolated from the DC output See External User I/O for the pin layout
Communication Interfaces Optional	LXI TCP/IP Ethernet (+LXI): RJ-45

Digital Inputs	5 V, 10 kΩ impedance
Digital Monitoring Signals	5 V, 5 mA capacity
Digital Reference Signal	5 V output, 25 mA capacity
Analog Programming Input	0-10 V
Analog Programming Impedance	10 kΩ
Analog Monitoring Signals	0-10 V, 5 mA capacity
Analog Monitoring Impedance	100 Ω
Analog Monitoring Accuracy	0.2% of max rating
Analog Reference Signal	10 V, 5 mA capacity, 1 Ω impedance

For more details about the External User I/O, see: Operation: External User I/O.

Size & Weight 500 kW models	Ships as a single, connected three-cabinet assembly: 500 kW Power Supply and Harmonic Neutralizer 76.4” H x 72” W x 31.5” D (194.1 x 182.9 x 80.0 cm) 6800 lbs (3084 kg) 7300 lbs (3311 kg) crated
Size & Weight 1000 kW models	Ships as two components: 1000 kW Power Supply 76.4” H x 72” W x 31.5” D (194.1 x 182.9 x 80.0 cm) 5500 lbs (2495 kg) crated 1000 kW Harmonic Neutralizer 76.4” H x 48” W x 31.5” D (194.1 x 121.9 x 80.0 cm) 5000 lbs (2268 kg) crated
Shipping Envelope 1000 kW models	Power Supply skid: 84” L x 72” W x 84” H (213.4 x 182.9 x 213.4 cm) Harmonic Neutralizer skid: 60” L x 72” W x 84” H (152.4 x 182.9 x 213.4 cm)

Ambient Operating Temperature	0°C to 50°C
Storage Temperature	-40°C to +85°C
Humidity	Relative humidity up to 95% non-condensing
Air Flow To ensure even heat distribution for the water cooling system	Bottom air inlet, top exhaust
Coolant Supply Requirement for user-supplied coolant	Maximum inlet temperature: 25°C Maximum inlet pressure: 80 psi Inlet and outlet fittings provided: 1” Female NPT Materials in coolant path: Copper pipe, PEX tubing, brass solenoid & fittings
Coolant Connections	One inlet and one outlet, on the power supply 1000 kW models: the harmonic neutralizer is fed from the power supply through an internal quick disconnect
Minimum Coolant Flow Rate 500 kW models	9 GPM
Minimum Coolant Flow Rate 1000 kW models	15 GPM
Heat Rejection Distribution of total losses	Approximately 80% to the coolant, 20% to ambient air Refer to Maximum heat rejected by ML Series MagnaDC power supply

EMC	Complies with 2014/30/EU (EMC Directive) CISPR 22 / EN 55022 Class A
Safety	Complies with EN61010-1 and 2014/35/EU (Low Voltage Directive)
CE Mark	Yes
UKCA Mark	Yes
RoHS Compliant	Yes
REACH Compliant	Yes