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SG Series : Specifications Common Remote Sense Load-line loss compensation for models <= 100V is 10% above full scale voltage total (5% per load-line), and models > 100V is 4% above full scale voltage total (2% per load-line). Parallel Operation Up to 5 units may be paralleled for additional current within the power supply single-unit specifications, with exception of the DC output current set accuracy. Additional paralleled SG units will add 0.3% inaccuracy per unit. To parallel more than 5 units, contact factory. Series Operation Up to 2 units (See Output Float Voltage) Input Nominal Voltage 3 phase, 3 wire + ground 208/220 VAC (operating range 187 - 242VAC) 380/400 VAC (operating range 342 - 440VAC) 440/480 VAC (operating range 396 - 528VAC)* *Optional Frequency 47 – 63Hz Power Factor >0.9 typical at 208/220 VAC input >0.78 typical at 380/400 VAC input >0.69 typical at 440/480 VAC input Protection ½ cycle ride-though on all three phases, 3 cycle ride-through on single phase; missing phase shutdown Input: AC Voltage and Current Output Power Max AC Input Current (A) per Phase, Low Line 187-242 VAC 342-440 VAC 396-528 VAC 5kW (3U) 21 14 13 10kW (3U) 41 27 26 15kW (3U) 62 40 39 20kW (6U) 83 54 52 25kW (6U) 103 67 65 30kW (6U) 124 80 78 Output: Voltage and Current Ranges   3U 6U Ripple & Noise Power 5 kW 10 kW 15 kW 20 kW 25 kW 30 kW rms (20Hz-300kHz) p-p Voltage Current 40 125 250 375 500* 625* 750* 20mV 75mV 60 83 167 250 333 417 500 20mV 75mV 80 63 125 188 250 313 375 20mV 100mV 100 50 100 150 200 250 300 20mV 100mV 160 31 63 94 125 156 188 25mV 150mV 200 25 50 75 100 125 150 25mV 175mV 250 20 40 60 80 100 120 30mV 200mV 330 15 30 45 61 76 91 30mV 200mV 400 12 25 38 50 63 75 40mV 300mV 600 8 17 25 33 42 50 60mV 350mV * By way of paralleling 5kW, 10kW & 15kW supplies Output Ripple & Noise (Voltage Mode) See Output: Voltage & Current Ranges Chart Above. Ripple and noise specified at full load, nominal AC input Ripple (Current Mode) <+/- 0.04% of full scale rms current DC Voltage Slew Rate 100 msec 5-95% of full scale typical (Contact factory for model specific slew rates) DC Current Slew Rate 45A / ms typical Line Regulation (±10% of nominal AC input, constant load) Voltage Mode: +/- 0.01% of full scale Current Mode: +/- 0.05% of full scale Load Regulation (no load to full load, nominal AC input) Voltage Mode: +/- 0.02% of full scale Current Mode: +/- 0.1% of full scale Load Transient Response Recovers within 1ms to +/-0.75% of steadystate output for a 50% to 100% or 100% to 50% load change Efficiency 87% typical at nominal line and max load Stability ±0.05% of set point after 8 hrs. warm-up at fixed line, load and temperature Temperature Coefficient 0.02%/ C of maximum output voltage rating for voltage set point 0.03%/ C of maximum output current rating for current set point Output Float Voltage Negative terminal within +/- 150 V of chassis potential Physical Dimensions Width: 19.00” (48.3 cm), Depth 25.0” (63.5 cm)   Height: 5-15 kW Units: 3U – 5.25” rack mount (13.34 cm) 20-30 kW units: 6U – 10.5” rack mount (26.67 cm) Weight & Shipping Weight Weight 3U, 5kW ~ 40 lbs (18kg) 3U, 10kW ~ 60 lbs (27kg) 3U, 15kW ~ 80 lbs (36kg) 6U, 20kW ~ 120 lbs (54kg) 6U, 25kW ~ 140 lbs (63kg) 6U, 30kW ~ 160 lbs (72kg) Shipping Weight 3U, 5kW ~ 70 lbs (32kg) 3U, 10kW ~ 90 lbs (41kg) 3U, 15kW ~ 110 lbs (50kg) 6U, 20kW ~ 150 lbs (68kg) 6U, 25kW ~ 170 lbs (77kg) 6U, 30kW ~ 190 lbs (86kg)   Product Configurator   DC Electronic Loads DC Modular Supply Discontinued Products Product Support Contact Sales Programming & Read-back Specifications   Programming Read-Back / Monitoring   Accuracy Resolution Accuracy Resolution Front panel Display SGA: +/- (0.5%fs + 1 digit) SGI, Voltage: +/- 0.1% of full scale SGI, Current: +/- 0.4% of full scale SGA: 3.5 digits SGI: 4.0 digits SGA: +/- (0.5%fs + 1 digit) SGI, Voltage: +/- 0.1% of full scale SGI, Current: +/- 0.4% of full scale SGA: 3.5 digits SGI: 4.0 digits Knob control & Display read-back Remote Analog Interface Voltage: +/-0.25% of full scale for 0-5V range, +/-0.5% of full scale for 0-10V range Current: 0.8% of full scale NA +/-1.0% of full scale (0 - 10V) NA 25-pin D-sub connector (0~5V or 0~10V) Remote Digital Interface Voltage: +/- 0.1% of full scale, Current: +/- 0.4% of full scale +/-0.002% of full scale Voltage: +/- 0.15% of full scale, Current: +/- 0.4% of full scale +/-0.002% of full scale RS-232C (Standard on SGI), Optional IEEE-488.2 and Optional LXI Compliant 10/100 base-T Ethernet (see Options) OVP +/- 1% of full scale +/-0.002% of full scale     Programming range: 5-110% Configured from front panel, remote analog or via optional digital inputs User I/O Disconnect & Polarity-reversal relay control ( Only available with Ethernet Option ) Digital 10-pin Molex type connector Chart Below Analog User I/O Pinouts 1 Isolated Remote ON/OFF 14 Isolated TTL/CMOS ON/OFF Control 2 Isolated Circuit Return 15 Remote Voltage Programming 3 Remote Overvoltage Set 16 Remote Current Programming 4 Voltage Return for Pins 9, 15, or 21 17 Fault State 5 Remote ON/OFF 18 Shutdown Fault 6 Circuit Common 19 Output Voltage Monitor 7 Output Current Monitor 20 Voltage Return for Pins 9, 15, or 21 8 Local Voltage Control Monitor 21 Voltage Control Resistance 9 Remote Voltage Programming 22 Current Control Resistance 10 Remote Current Programming 23 Current Return for Pins 10, 16, or 22 11 Local Current Control Monitor 24 Circuit Common 12 60V Remote Sense 25 Current Return for Pins 10, 16, or 22 Digital User I/O Pinouts ( Ethernet Option Only ) 1 Fold Back Monitor 2 Direct Shutdown 3 Fault Indication 4 Trigger Out 5 Common 6 Polarity output reversal signal 7 Isolation relays relay open signal 8 Sense relays open signal 9 Common 10 Trigger in

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