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Sorensen XFR Series : Specifications
Common
Switching Frequency XFR 2.8 kW: Nominal 31 kHz (62 kHz output ripple) XFR 1.2 kW: 6 V to 40 V models: nominal 78 kHz (156 kHz output ripple); 60 V to 600 V models: nominal 62.5 kHz (125 kHz output ripple).
Time Delay 7 sec maximum from power on until output stable
Voltage Mode Transient Response Time < 3 ms for output voltage to recover within 0.5% of its rated voltage after a step change in load current of up to 10% to 90% of rated output
Maximum Voltage Differential ±600 Vdc from output to safety ground
Remote Start/Stop and Interlock 2.5-15 V signal or TTL-compatible input, selectable logic
Remote Analog Programming Voltage and current programming inputs (source must be isolated): 0-5 k, 0-10 k resistances; 0-5 V, 0-10 V (default) voltage sources
Remote Analog Monitoring Voltage and current monitor outputs 0-5 V, 0-10 V (default) ranges for 0-100% of output
Remote Programming & Monitoring Accuracy 1% zero to full scale output for the default range
Maximum Remote Sense Line Drop Compensation 5 V / line (Line drop is subtracted from total voltage available at supply output.)
Front Panel Voltage and Current Control 10-turn voltage and current potentiometers
Front Panel Voltage Control Resolution 0.02% of maximum voltage
Main Output Connector XFR 2.8 kW: 7.5 - 100 V models: nickel-plated copper bus bars with bus bar cover and strain relief; 150V to 600 V models: 4-terminal, wire clamp connector with cover and strain relief; XFR 1.2 kW: 6 - 40 V models: nickel-plated copper bus bars with bus bar shield; 60 - 600 V models: 4-terminal wire clamp connector with strain relief
Approvals CE-marked units meet: EN61010-1, EN61000-6-2 and EN61000-6-4; UL Listed to UL3111-1; CSA certified to CSA C22.2 No 1010.1 Meets USA EMC standard: FCC, part 15B, Class A; Meets Canadian EMC standard: ICES-001, Class A.
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Input
Input Voltage Ranges XFR 2.8 kW: 190-264 Vac, 1φ (24.3 A @ 208 Vac; 20.5 A @ 230 Vac typical), 47-63 Hz; Option: M2 3φ 208 Vac input XFR 1.2 kW: 85-130 Vac or 190-264 Vac, 1φ (17 A @ 120 Vac; 8.8 A @ 230 Vac typical), 47-63 Hz. Automatic range detect.
AC Input Connector Type 3-terminal, 34 A, 250 V, wire clamp connector with strain relief cover
Protection Features
Over-voltage protection
Over-temperature protection
Environmental
Operating Temperature XFR 2.8 kW: 0 to 50°C, XFR 1.2 kW: 0 to 50°C; 6 V model: for rack mounted units, derate output current by 1.5 A per °C for operating temperatures between 30 - 50°C
Storage Temperature -20°C to 70°C
Humidity (Non-condensing) Up to 90% RH, non-condensing
Physical XFR 2.8 kW XFR 1.2 kW
Dimensions Width: 19” (429.4 mm)
Height: 3.5” (88.9 mm)
Depth: 21” (533.5 mm) 		Width: 19” (429.4 mm)
Height: 1.7” (43.2 mm)
Depth: 20” (508.1 mm)
Weight 33 lb (15 kg) 18 lb (8.2 kg)
Model Output Voltage Output Current Output Power Line Regulation2
Voltage Current
XFR 7.5-300 0-7.5 V 0-300 A 2250 W 2.75 mV 32 mA
XFR 12-220 0-12 V 0-220 A 2640 W 3.2 mV 24 mA
XFR 20-130 0-20 V 0-130 A 2600 W 4 mV 15 mA
XFR 33-85 0-33 V 0-85 A 2805 W 5.3 mV 10.5 mA
XFR 40-70 0-40 V 0-70 A 2800 W 6 mV 9 mA
XFR 60-46 0-60 V 0-46 A 2760 W 8 mV 6.6 mA
XFR 100-28 0-100 V 0-28 A 2800 W 12 mV 4.8 mA
XFR 150-18 0-150 V 0-18 A 2700 W 17 mV 3.8 mA
XFR 300-9 0-300 V 0-9 A 2700 W 32 mV 2.9 mA
XFR 600-4 0-600 V 0-4 A 2400 W 62 mV 2.4 mA
XFR 6-200 0-6 V
0-200 A 1200 W 2.6 mV 22 mA
XFR 7.5-140 0-7.5 V 0-140 A 1050 W 2.75 mV 16 mA
XFR 12-100 0-12 V 0-100 A 1200 W 3.2 mV 12 mA
XFR 20-60 0-20 V 0-60 A 1200 W 4 mV 8 mA
XFR 35-35 0-35 V 0-35 A 1225 W 5.5 mV 5.5 mA
XFR 40-30 0-40 V 0-30 A 1200 W 6 mV 5 mA
XFR 60-20 0-60 V 0-20 A 1200 W 8 mV 4 mA
XFR 100-12 0-100 V 0-12 A 1200 W 12 mV 3.2 mA
XFR 150-8 0-150 V 0-8 A 1200 W 17 mV 2.8 mA
XFR 300-4 0-300 V 0-4 A 1200 W 32 mV 2.4 mA
XFR 600-2 0-600 V 0-2 A 1200 W 62 mV 2.2 mA
Model Load Regulation Meter Accuracy
Voltage Current Voltage (1% of Vmax + 1 count) Current (1% of lmax + 1 count)
XFR 7.5-300 6.5 mV 65 mA 0.09 V 4 A
XFR 12-220 7.4 mV 49 mA 0.13 V 2.3 A
XFR 20-130 9 mV 31 mA 0.3 V 1.4 A
XFR 33-85 11.6 mV 22 mA 0.43 V 0.95 A
XFR 40-70 13 mV 19 mA 0.5 V 0.8 A
XFR 60-46 17 mV 14.2 mA 0.7 V 0.56 A
XFR 100-28 27 mV 10.6 mA 1.1 V 0.38 A
XFR 150-18 35 mV 8.6 mA 1.6 V 0.19 A
XFR 300-9 65 mV 6.8 mA 4 V 0.1 A
XFR 600-4 125 mV 5.8 mA 7 V 0.05 A
XFR 6-200 8.2 mV
45 mA 0.07 V 2.5 A
XFR 7.5-140 6.5 mV 33 mA 0.09 V 1.5 A
XFR 12-100 7.4 mV 25 mA 0.13 V 1.1 A
XFR 20-60 9 mV 17 mA 0.3 V 0.7 A
XFR 35-35 12 mV 12 mA 0.4 V 0.45 A
XFR 40-30 13 mV 11 mA 0.5 V 0.4 A
XFR 60-20 17 mV 9 mA 0.7 V 0.3 A
XFR 100-12 27 mV 7.4 mA 1.1 V 0.13 A
XFR 150-8 35 mV 6.6 mA 1.6 V 0.09 A
XFR 300-4 65 mV 5.8 mA 4 V 0.05 A
XFR 600-2 125 mV 5.4 mA 7 V 0.03 A
Model Output Noise (0-20MHz) Output Ripple (rms)
Voltage (p-p) Voltage Current
XFR 7.5-300 100 mV 10 mV 1600 mA
XFR 12-220 100 mV 10 mV 1200 mA
XFR 20-130 100 mV 10 mV 400 mA
XFR 33-85 100 mV 15 mV 300 mV
XFR 40-70 150 mV 15 mV 200 mA
XFR 60-46 150 mV 15 mV 100 mA
XFR 100-28 175 mV 25 mV 80 mA
XFR 150-18 200 mV 25 mV 40 mA
XFR 300-9 400 mV 40 mV 20 mA
XFR 600-4 500 mV 100 mV 10 mA
XFR 6-200 75 mV
9 mV 750 mA
XFR 7.5-140 75 mV 9 mV 500 mA
XFR 12-100 75 mV 9 mV 500 mA
XFR 20-60 75 mV 9 mV 500 mA
XFR 35-35 120 mV 9 mV 300 mA
XFR 40-30 150 mV 9 mV 200 mA
XFR 60-20 150 mV 9 mV 100 mA
XFR 100-12 150 mV 9 mV 100 mA
XFR 150-8 150 mV 18 mV 50 mA
XFR 300-4 200 mV 27 mV 25 mA
XFR 600-2 400 mV 72 mV 15 mA
Model Drift (8 hours) Temp Coeffcient
Voltage
(0.5% of Vmax)		 Current
(0.05% of lmax)		 Voltage (0.02% of Vmax ºC) Current (0.03% of Vmax ºC)
XFR 7.5-300 3.75 mV 150 mA 1.5 mV 90 mA
XFR 12-220 6 mV 110 mA 2.4 mV 66 mA
XFR 20-130 10 mV 65 mA 4 mV 39 mA
XFR 33-85 16.5 mA 42.5 mA 6.6 mV 25.5 mA
XFR 40-70 20 mV 35 mA 8 mV 21 mA
XFR 60-46 30 mV 23 mA 12 mV 13.8 mA
XFR 100-28 50 mV 14 mA 20 mV 8.4 mA
XFR 150-18 75 mV 9 mA 30 mV 5.4 mA
XFR 300-9 150 mV 4.5 mA 60 mV 2.7 mA
XFR 600-4 300 mV 2 mA 120 mV 1.2 mA
XFR 6-200 3 mV
200 mA 1.2 mV 60 mA
XFR 7.5-140 3.75 mV 70 mA 1.5 mV 42 mA
XFR 12-100 6 mV 50 mA 2.4 mV 30 mA
XFR 20-60 10 mV 30 mA 4 mV 18 mA
XFR 35-35 17.5 mV 17.5 mA 7 mV 10.5 mA
XFR 40-30 20 mV 15 mA 8 mV 9 mA
XFR 60-20 30 mV 10 mA 12 mV 6 mA
XFR 100-12 50 mV 6 mA 20 mV 3.6 mA
XFR 150-8 75 mV 4 mA 30 mV 2.4 mA
XFR 300-4 150 mV 2 mA 60 mV 1.2 mA
XFR 600-2 300 mV 1 mA 120 mV 0.6 mA
Model Program Slew Rate OVP Adjustment Range (5% to 110% of Vmax) Efficiency
Rise time Fall time
XFR 7.5-300 100 ms 100 ms 0.375-8.25 V 80%
XFR 12-220 100 ms 100 ms 0.6-13.2 V 82%
XFR 20-130 100 ms 100 ms 1-22 V 85%
XFR 33-85 100 ms 100 ms 1.65 - 36.6 V 85%
XFR 40-70 100 ms 100 ms 2-44 V 87%
XFR 60-46 100 ms 100 ms 3-66 V 90%
XFR 100-28 170 ms 170 ms 5-110 V 90%
XFR 150-18 170 ms 170 ms 7.5-165 V 90%
XFR 300-9 170 ms 170 ms 15-330 V 91%
XFR 600-4 170 ms
100 ms 30-660 V 91%
XFR 6-200 100 ms
100 ms 0.3-6.6 V 75%
XFR 7.5-140 100 ms 100 ms 0.375-8.25 V 78%
XFR 12-100 100 ms 100 ms 0.6-13.2 V 81%
XFR 20-60 100 ms 100 ms 1-22 V 81%
XFR 35-35 100 ms 100 ms 1.75-38.5 V 83%
XFR 40-30 100 ms 100 ms 2-44 V 83%
XFR 60-20 100 ms 100 ms 3-66 V 86%
XFR 100-12 170 ms 170 ms 5-110 V 84%
XFR 150-8 170 ms 170 ms 7.5-165 V 84%
XFR 300-4 170 ms 170 ms 15-330 V 85%
XFR 600-2 170 ms 170 ms 30-660 V 85%
Interface Specifications with RS-232 or GPIB Interface Installed
Model Program Accuracy Readback Accuracy
Voltage (mV) Current (mA) OVP (mV) Voltage (mV) Current (mA)
XFR 7.5-300 10 +0.12% 900 +0.15% 40 30 +0.12% 900 +0.1%
XFR 12-220 75 +0.12% 750 +0.15% 75 75 +0.12% 750 +0.1%
XFR 20-130 75 +0.12% 500 +0.15% 100 75 +0.2% 500 +0.1%
XFR 33-85 75 +0.3% 425 +0.1% 175 75 +0.3% 425 +0.1%
XFR 40-70 75 +0.3%
350 +0.15% 200 75 +0.3% 350 +0.1%
XFR 60-46 150 +0.3% 250 +0.1% 300 150 +0.35% 250 +0.1%
XFR 100-28 150 +0.35% 140 +0.15% 500 150 +0.35% 140 0.1%
XFR 150-18 225 +0.35% 120 +0.1% 750 225 +0.35% 120 +0.1%
XFR 300-9 225 +0.35% 80 +0.1% 1500 225 +0.35% 80 +0.1%
XFR 600-4 300 +0.35%
 80 +0.1% 3000 300 +0.35% 80 +0.1%
XFR 6-200 10 +0.12%
500 +0.12% 30 30 +0.12% 500 +0.1%
XFR 7.5-140 10 +0.12% 500 +0.1% 40 30 +0.12% 500 +0.1%
XFR 12-100 75 +0.12% 460 +0.1% 75 75 +0.12% 460 +0.1%
XFR 20-60 75 +0.12% 250 +0.1% 100 75 +0.12% 250 +0.1%
XFR 35-35 75 +0.3% 200 +0.1% 175 75 +0.12% 200 +0.1%
XFR 40-30 75 +0.3% 150 +0.15% 200 75 +0.12% 150 +0.1%
XFR 60-20 150 +0.25% 120 +0.1% 400 150 +0.25% 120 +0.1%
XFR 100-12 150 +0.35% 80 +0.1% 500 150 +0.35% 80 +0.1%
XFR 150-8 225 +0.35% 80 +0.1% 750 225 +0.1% 80 +0.1%
XFR 300-4 225 +0.35% 80 0.1% 1500 225 +0.1% 80 +0.1%
XFR 600-2 300 +0.35% 75 +0.1% 3000 300 +0.1% 75 +0.1%
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