Model

XFR
7.5-140

XFR
12-100

XFR
20-60

XFR
35-35

XFR
40-30

XFR
60-20

XFR
100-12

XFR
150-8

XFR
300-4

XFR
600-2

 Output Ratings:

Output Voltage

0-7.5V

0-12V

0-20V

0-35V

0-40V

0-60V

0-100V

0-150V

0-300V

0-600V

Output Current

0-140A

0-100A

0-60A

0-35A

0-30A

0-20A

0-12A

0-8A

0-4A

0-2A

Output Power

1050W

1200W

1200W

1225W

1200W

1200W

1200W

1200W

1200W

1200W

Line Regulation: (2)

Voltage
(0.01% of Vmax+2mV)

2.75mV

3.2mV

4mV

5.5mV

6mV

8mV

12mV

17mV

32mV

62mV

Current
(0.01% of Imax+2mA)

16mA

12mA

8mA

5.5mA

5mA

4mA

3.2mA

2.8mA

2.4mA

2.2mA

Load Regulation: (3)

Voltage
(0.02% of Vmax+5mV)

6.5mV

7.4mV

9mV

12mV

13mV

17mV

27mV

35mV

65mV

125mV

Current
(0.02% of Imax+5mA)

33mA

25mA

17mA

12mA

11mA

9mA

7.4mA

6.6mA

5.8mA

5.4mA

Meter Accuracy:

Voltage
(0.5% of Vmax+1 count)

0.05V

0.07V

0.2V

0.3V

0.3V

0.4V

0.6V

0.9V

3V

4V

Current
(0.5% of Imax+1 count)

0.8A

0.6A

0.4A

0.3A

0.3A

0.2A

0.07A

0.05A

0.03A

0.02A

Output Noise & Ripple: (4)

Voltage rms

5mv

5mv

5mv

5mv

5mv

5mv

5mv

7mv

10mV

25mV

Voltage p-p (0-20MHz)

40mV

40mV

60mV

60mV

60mV

60mV

60mV

60mV

80mV

140mV

Current rms

175mA

100mA

85mA

25mA

25mA

10mA

5mA

3mA

2mA

1mA

Drift (8 hours): (5)

Voltage
(0.05% of Vmax)

3.8mV

6mV

10mV

17.5mV

20mV

30mV

50mV

75mV

150mV

300mV

Current
(0.05% of Imax)

70mA

50mA

30mA

17.5mA

15mA

10mA

6mA

4mA

2mA

1mA

Temperature Coefficient: (6)

Voltage
(0.02% of Vmax/°C)

1.5mV

2.4mV

4mV

7mV

8mV

12mV

20mV

30mV

60mV

120mV

Current
(0.03% of Imax/°C)

42mA

30mA

18mA

10.5mA

9mA

6mA

3.6mA

2.4mA

1.2mA

0.6mA

Program Slew Rate: (7)

Rise Time

100ms

100ms

100ms

100ms

100ms

100ms

170ms

170ms

170ms

170ms

Fall Time

100ms

100ms

100ms

100ms

100ms

100ms

170ms

170ms

170ms

170ms

OVP Adjustment Range:

(5% to 110% of Vmax)

0.375 -
8.25V

0.6 -
13.2V

1 -
22V

1.75 -
38.5V

2 -
44V

3 -
66V

5 -
110V

7.5 -
165V

15 -
330V

30 -
660V

Efficiency: (8)

80%

82%

84%

84%

84%

84%

84%

87%

86%

85%

(1) Specifications indicate typical performance at 25°C ±5°C, nominal line input of 120VAC.
(2) For input voltage variation over the AC input voltage range, with constant rated load.
(3) For 0-100% load variation, with constant nominal line voltage.
(4) Measured at full rated output with a resistive load.
(5) Maximum drift over 8 hours with constant line, load, and temperature, after 30-minute warm-up.
(6) Change in output per °C change in ambient temperature, with constant line and load.
(7) Measured with stepped 0-10V analog programming source and a resistive load.
(8) Typical efficiency at 100 VAC input and rated output power.
(9) Derate output current on 6V model by 1.5A/deg C for operating temperatures 35 to 50 deg C.

RS-232 or GPIB Interface Specifications (with optional interface installed)

Model

XFR
7.5-140

XFR
12-100

XFR
20-60

XFR
35-35

XFR
40-30

XFR
60-20

XFR
100-12

XFR
150-8

XFR
300-4

XFR
600-2

Program Resolution (16 Bit)

Voltage (mV)

0.13

0.2

0.34

0.59

0.67

1.01

1.68

2.52

5.04

10.1

Current (mA)

2.35

1.68

1.01

0.59

0.5

0.34

0.2

0.13

0.07

0.03

OVP (mV)

0.13

0.2

0.34

0.59

0.67

1.01

1.68

2.52

5.04

10.1

Program Accuracy

Voltage (mV)
(0.2%+10mV)

25

34

50

80

90

130

210

310

610

1210

Current (mA)
(0.3%+10mA)

430

310

190

115

100

70

46

34

22

16

OVP (mV)
(0.5%+100mV)

138

160

200

275

300

400

600

850

1600

3100

Readback Resolution (16 Bit)

Voltage (mV)

0.13

0.2

0.34

0.59

0.67

1.01

1.68

2.52

5.04

10.1

Current (mA)

2.35

1.68

1.01

0.59

0.5

0.34

0.2

0.13

0.7

0.03

Readback Accuracy

Voltage (mV)
(0.2%+20mV)

35

44

60

90

100

140

220

320

620

1220

Current (mA)
(0.3%+20mA)

440

320

200

125

110

80

56

44

32

26

 XFR 1.2kW General Specifications

Operational AC Input Voltage

85-130VAC or 190-264VAC, 1 phase (17 @ 120VAC; 8.8A @ 230VAC typical), 47-63Hz

Switching Frequency

Nominal 78kHz (156kHz output ripple)

Time Delay

7s maximum from power on until output stable

Voltage Mode Transient Response Time

3ms for output voltage to recover within 0.5% of its previous level after a step change in load current of up to 10% to 90% of rated output

Maximum Voltage Differential

±600VDC from output to safety ground

Remote Start/Stop and Interlock

TTL-compatible input, selectable logic

Remote Analog Programming

Voltage and current programming inputs (source must be isolated): 0-5k, 0-10k resistances; 0-5V (default), 0-10V voltage sources

Remote Analog Monitoring

Voltage/ current monitor outputs 0-5V, 01-10V ranges for 0-100% of output

Remote Programming and Monitoring Accuracy

<1% of full scale output for the default range

Maximum Remote Sense Line Drop Compensation

5V/line (Line drop is subtracted from total voltage available at supply output)

Operating Temp. Range

0 to 50°C

Storage Temperature Range

–40 to 85°C

Humidity Range

0 to 80% RH, non-condensing

Front Panel Voltage and Current Control

10-turn voltage and current potentiometers

Front Panel Voltage Control Resolution

0.02% of maximum voltage

AC Input Connector Type

3-Terminal, 34A/250V, wire clamp connector with strain relief cover

Main Output Connector

7.5 to 40V models: nickel-plated copper bus bars with bus bar cover; 60V to 600V models: 4-terminal wire clamp connector with strain relief

Weight

Approximately 8.2kg (18 lb)

Approvals

CE-marked, units meet IEC 1010-1 safety standard, and EN50081-2 and EN50082-1 EMC standards. Additional standards: CSA C22.2 No. 1010.1, UL 3101, and FCC, part 15, class A EMI standard

 XFR 1.2kW Options

GPIB-XFR

GPIB Interface Card (16 Bit)

RS-232-XFR

RS-232 Interface Card (16 Bit)

ISOL-XFR

Isolated Interface Card provides isolated analog control and readback of output voltage and current

M13

Locking Bushings on front panel controls

Specifications(1) for the XFR 2.8kW Series (Specifications are subject to change without notice)

Model

XFR
7.5-300

XFR
12-220

XFR
20-130

XFR
40-70

XFR
60-46

XFR
100-28

XFR
150-18

XFR
300-9

XFR
600-4

Output Ratings:

Output Voltage

0-7.5V

0-12V

0-20V

0-40V

0-60V

0-100V

0-150V

0-300V

0-600V

Output Current

0-300A

0-220A

0-130A

0-70A

0-46A

0-28A

0-18A

0-9A

0-4A

Output Power

2250W

2640W

2600W

2800W

2760W

2800W

2700W

2700W

2400W

Line Regulation: (2)

Voltage
(0.01% of Vmax + 2mV)

2.75mV

3.2mV

4mV

6mV

8mV

12mV

17mV

32mV

62mV

Current
(0.01% of Imax + 2mA)

32mA

24mA

15mA

9mA

6.6mA

4.8mA

3.8mA

2.9mA

2.4mA

Load Regulation: (3)

Voltage
(0.02% of Vmax + 5mV)

6.5mV

7.4mV

9mV

13mV

17mV

27mV

35mV

65mV

125mV

Current
(0.02% of Imax + 5mA)

65mA

49mA

31mA

19mA

14.2mA

10.6mA

8.6mA

6.8mA

5.8mA

Meter Accuracy:

Voltage
(0.5% of Vmax + 1 count)

0.05V

0.07V

0.2V

0.3V

0.4V

0.6V

0.9V

3V

4V

Current
(0.5% of Imax + 1 count)

3A

2A

0.8A

0.5A

0.3A

0.2A

0.1A

0.06A

0.03A

Output Noise & Ripple:

Voltage rms

4mV

5mV

6mV

6mV

6mV

12mV

15mV

20mV

35mV

Voltage p-p
(0-20MHz)

50mV

50mV

60mV

60mV

60mV

75mV

100mV

120mV

200mV

Current rms

400mA

200mA

100mA

50mA

30mA

10mA

5mA

5mA

0.7mA

Drift (8 hours): (4)

Voltage
(0.05% of Vmax)

3.8mV

6mV

10mV

20mV

30mV

50mV

75mV

150mV

300mV

Current
(0.1% of Imax)

300mA

220mA

130mA

70mA

46mA

28mA

18mA

9mA

4mA

Temperature Coefficient: (5)

Voltage
(0.02% of Vmax/°C)

1.5mV

2.4mV

4mV

8mV

12mV

20mV

30mV

60mV

120mV

Current
(0.03% of Imax/°C)

90mA

70mA

40mA

25mA

15mA

9mA

5.5mA

2.7mA

1.2mA

Program Slew Rate: (6)

Rise Time

100ms

100ms

100ms

100ms

100ms

170ms

170ms

170ms

170ms

Fall Time

100ms

100ms

100ms

100ms

100ms

170ms

170ms

170ms

170ms

OVP Adjustment Range:

(5% to 110% of Vmax)

0.375 -
8.25V

0.6 -
13.2V

1 -
22V

2 -
44V

3 -
66V

5 -
110V

7.5 -
165V

15 -
330V

30 -
660V

Efficiency: (7)

81%

84%

87%

86%

88%

89%

90%

90%

90%

(1) Specifications indicate typical performance at 25°C ± 5°C, nominal line input of 208VAC.
(2) For input voltage variation over the AC input voltage range, with constant rated load.
(3) For 0-100% load variation, with constant nominal line voltage.
(4) Maximum drift over 8 hours with constant line, load, and temperature, after 30-minute warm-up.
(5) Change in output per °C change in ambient temperature, with constant line and load.
(6) Measured at full rated ouput with a resistive load.
(7) Typical efficiency at 200 VAC input and rated output power.

RS-232 or GPIB Interface Specifications (with optional interface installed)

Model

XFR
7.5-300

XFR
12-220

XFR
20-130

XFR
40-70

XFR
60-46

XFR
100-28

XFR
150-18

XFR
300-9

XFR
600-4

Program Resolution (16 Bit)

Voltage (mV)

0.13

0.2

0.34

0.67

1.01

1.68

2.52

5.04

10.1

Current (mA)

5.04

3.69

2.18

1.17

0.77

0.47

0.3

0.15

0.07

OVP (mV)

0.13

0.2

0.34

0.67

1.01

1.68

2.52

5.04

10.1

Program Accuracy

Voltage (mV) (0.2%+10mV)

25

34

50

90

130

210

310

610

1210

Current (mA) (0.3%+10mA)

910

670

400

220

148

94

64

37

22

OVP (mV) (0.5%+100mV)

138

160

200

300

400

600

850

1600

3100

Readback Resolution (16 Bit)

Voltage (mV)

0.13

0.2

0.34

0.67

1.01

1.68

2.52

5.04

10.1

Current (mA)

5.04

3.69

2.18

1.17

0.77

0.47

0.3

0.15

0.07

Readback Accuracy

Voltage (mV) (0.2%+20mV)

35

44

60

100

140

220

320

620

1220

Current (mA) (0.3%+20mA)

920

680

410

230

158

104

74

47

32