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Single-output power supplies
up to 200 W output power - TOE 8941

Overview

newPerformance in absolute perfection

Compact power supply for your applications

The TOE 8941 series power supplies are suitable for applications associated with:
Research / development
Laboratory / testing / experiments
Production / test bays
Quality assurance
Service / training



200 W in compact design
The TOE 8941 series single-output power supplies have an extreme compact design. As a result of the high efficiency of all units, the complete output power of 200 W is available at the front via safety sockets. A rear output via a screw-type terminal block is optional.

Autoranging
Power supplies with autoranging can source their rated power over a wide and stepless range of voltage and current combinations.
Autoranging power supplies from TOELLNER have a significantly larger operating range than standard power supplies with the same output power.



Adjustment using incremental spinwheels
The output values are adjusted with a selectable resolution using wear-free incremental spinwheels, guaranteeing reliable and precise setting of all output parameters and operating functions even after many years of use.

Display
The set and measured values for voltage, current and power as well as the menu control functions are output on a 2-row LCD with 20 characters/row.

Highest degree of safety
is guaranteed for your applications by comprehensive protective measures: adjustable overvoltage protection, limit function, fast power OFF switching, polarity reversal protection, resistance to reverse current, various internal electronic monitoring functions.

Innovative remote sensing circuit
Benefit from an innovative sensing circuit which keeps the correct voltage at the input terminals of the load. Additionally it protects sensitive loads if there is a break in the sensor line. The sensing inputs are available at the rear.

Adjustable output power
The possibility for directly setting the power is a further exceptional feature of this series. The output power of 200 W can then be reduced down to 5 % of the maximum output power.

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Models

  Voltage Current Power
TOE 8941-20
0 - 20 V 0 - 20 A
200 W
TOE 8941-40 0 - 40 V
0 - 10 A
200 W
TOE 8941-60 0 - 60 V
0 - 7 A
200 W
TOE 8941-80 0 - 80 V
0 - 5 A
200 W
TOE 8941-130 0 - 130 V
0 - 3 A
200 W

Outputs
-
Floating for all models
- Safety sockets at front
- Optional outputs at rear on screw terminal block

Technical data

Output TOE 8941-20 TOE 8941-40 TOE 8941-60 TOE 8941-80 TOE 8941-130
Voltage 0 - 20 V 0 - 40 V 0 - 60 V 0 - 80 V 0 - 130 V
Current 0 - 20 A 0 - 10 A 0 -  7 A 0 - 5 A 0 -  3 A
Power adjustable in range 10 - 200 W 10 - 200 W 10 - V 200 W 10 - 200 W 10 - 200 W
Setting resolution
Voltage
Current
Power

5 mV
5 mA
0.1 W

10 mV
2 mA
0.1 W

10 mV
1 mA
0.1 W

20 mV
1 mA
0.1 W

20 mV
1 mA
0.1 W
Setting accuracy
Voltage
Current
Power

0.1 % + 10 mV
0.2 % + 20 mA
0.4 % + 1 W

0.1 % + 20 mV
0.2 % + 10 mA
0.4 % + 1 W

0.1 % + 30 mV
0.2 % + 7 mA
0.4 % + 1 W

0.1% + 40 mV
0.2 % + 5 mA
0.4 % + 1 W

0.1% + 60 mV
0.2 % + 3 mA
0.4 % + 1 W
Deviation in regulation with 100 %
change in load
Voltage
Current


10-4 + 5 mV
5 x 10-4 + 10 mA


10-4 + 5 mV
5 x 10-4 + 5 mA


10-4 + 5 mV
5 x 10-4 + 3 mA


10-4 + 5 mV
5 x 10-4 + 2 mA


10-4 + 5 mV
5 x 10-4 + 1.5 mA
With change in line voltage 85 V — 265 V < 0.5 mV
< 0.5 mV < 0.5 mV < 0.5 mV < 1 mV
Regulation time with change in load
from 20 % to 100 % Irated
Tolerance: 0.2 % Urated

100 μs

100 μs

100 μs

100 μs

100 μs
Setting time of output voltage
with change in setpoint
0 V to Vrated no-load/full load
Vrated to 1 V no-load/full load



6 ms/10 ms
30 ms/8ms



8 ms/10 ms
50 ms/10 ms



10 ms/15 ms
100 ms/25 ms



15 ms/20 ms
200 ms/50 ms



50 ms/60 ms
1.5 s/400 ms
Residual ripple (rms)
10 Hz to 10 MHz

Voltage
Current


  3mV
12 mA


3 mV
10 mA


6 mV
7 mA


10 mV
5 mA


12 mV
2 mA
Measuring accuracy
Voltage
Current
Power

0.1 % + 20 mV
0.2 % + 30 mA
0.4 % + 1 W

0.1 % + 30 mV
0.2 % + 20 mA
0.4 % + 1 W

0.1 % + 45 mV
0.2 % + 10 mA
0.4 % + 1 W

0.1 % + 60 mV
0.2 % + 7 mA
0.4 % + 1 W

0.1 % + 80 mV
0.2 % + 5 mA
0.4 % + 1 W
Temperature coefficient
Voltage
Current

10-4/K
10-4/K

10-4/K
10-4/K

10-4/K
10-4/K

10-4/K
10-4/K

10-4/K
10-4/K
Analog interface
Control voltage
(reference potential is the negative pole of the output)
0 - 5 V for
0 - 5 V for




0 - 20 V
0 - 20 A




0 - 40 V
0 - 10 A




0 - 60 V
0 - 7 A




0 - 80 V
0 - 5 A




0 - 130 V
0 - 3 A
Protection functions
Adjustment range for OVP
Adjustment range for limit

3 - 22 V
0 - 20 V

3 - 44 V
0 - 40 V

3 - 66 V
0 - 60 V 

3 - 88 V
0 - 80 V 

3 - 143 V
0 - 130 V 
Resistant to feedback
Voltage
Current

100 V
20 A

100 V
10 A

100 V
7 A

100 V
5 A

160 V
3 A

General data

Output
Insulation
Floating and electrically isolated
± 250 V against ground
Analog interface
Control voltage
Input impedance

0 - 5 V each for 0 - Vmax bzw. 0 - Imax
Approx. 10 kOhm
Line voltage 85 V to 265 V, 47 Hz to 63 Hz
Power consumption Approx. 250 VA / 250 W
Protective measures Protection class 1 in accordance with DIN EN 61010-1
EMC EN 61326
Operating temperature 0 °C to 40 °C
Storage temperature -20 °C bis 70 °C
Reference temperature 23 °C  ± 1 °C
Dimensions
with feet
224 x   88 x 357 mm (W x H x D)
224 x 103 x 357 mm (W x H x D)
19" system ½ 19", 2 HU
Weight Approx. 5 kg 
Housing Aluminium/steel

Order informations + Options

TOE 8941-20 Power supply  20 V / 20 A 
TOE 8941-40 Power supply  40 V / 10 A 
TOE 8941-60 Power supply  60 V / 7 A 
TOE 8941-80 Power supply   80 V / 5 A
TOE 8941-130 Power supply  130 V / 3 A

Options

TOE 8940/015 GPIB interface
TOE 8940/025 USB interface
TOE 8940/035 LAN and USB interface
TOE 8940/251 output at rear
Interlock/inhibit options
The interlock and inhibit control options permit external enabling or OFF/ON switching of the main output by means of a switch or a TTL signal.

Interlock option TOE 8940/101
Control via
contact
Control via
TTL-Signal
Power supply
output
Close Low ON
Open High OFF
Interlock option TOE 8940/101
Control via
contact
Control via
TTL-Signal
Power supply
output
Close Low OFF
Open High ON
Cable and adapters
TOE 9101 USB/GPIB adpter
TOE 9009 IEEE-488 cable, 2 m 
TOE 9521 19" adapter, 2 HU asymetric for single
TOE 9522 19" adapter, 2 HU parallel installation set for 2 units

Supplied accessories
- 1 Power cord
- 1 instruction manual

Free driver for für LabViewTM


19" adapter, TOE 9522
2 HU, parallel installation set for 2 units of the TOE 8941 series

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