Power Supply Range and Model Selector
BENCH MODELS
Model No
Type
Regulation
O/Ps
Main Output(s)
Logic Output
Power
Fan
OVP
Controls
Meters
Size mm
Weight
Triple
Single
Single
Single
Single
Single
Single
Single
Dual
Triple
Single
Single
Single
Single
Dual
Triple
Dual **
Single
Single
Single
Dual *
Dual *
Triple *
Triple *
Single
Dual
Single
Single
Triple
Single
Single
Dual
Dual
0.3 - 20V@ 0.25A
12V - 14V @ 10A
0V - 30V @ 1A
0V - 18V @ 3.3A
0V - 30V @ 2A
0V - 56V @ 1.1A
0V - 15V @ 5A
0V - 30V @ 3A
0V - 30V @ 2A
0V - 30V @ 2A
0V - 18V @ 10A
0V - 35V @ 5A
0V - 20V @ 20A
0V - 42V @ 10A
0V - 35V @ 4A
0V - 35V @ 4A
0V - 75V @ 2A
0V - 15V @ 4A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 30V @ 2A
0V - 30V @ 2A
0V - 35V @ 5A #
0V - 56V @ 4A #
0V - 35V @ 5A #
0V - 18V @ 20A
0V - 35V @ 10A
0V - 35V @ 10A #
#
0V - 60V @ 20A
5V @ 1A
15W
140W
30W
60W
60W
60W
75W
90W
120W
130W
180W
175W
400W
420W
280W
305W
300W
60W
65W
95W
130W
190W
155W
230W
60W
120W
105W
112W
215W
360W
350W
350W
840W
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Digital
Digital
Digital
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LCD
LCD
LED
LED
LED
LED
LED
LED
LED
220x82x230
190x160x273
140x160x195
140x160x195
140x160x195
140x160x195
140x160x195
140x160x195
260x160x195
260x160x195
140x160x195
140x160x195
140x160x195
140x160x195
260x160x195
260x160x195
260x160x195
155x170x265
155x170x265
155x170x300
350x170x265
350x170x300
425x170x265
425x170x300
160x160x238
308x160x238
141x171x300
141x171x300
282x171x300
210x130x350
210x130x350
210x130x350
210x130x350
1.8kg
7.8kg
3.4kg
4.4kg
4.4kg
4.4kg
5.0kg
5.0kg
7.5kg
7.5kg
3.0kg
3.0kg
3.5kg
3.5kg
4.3kg
4.3kg
4.4kg
5.0kg
5.0kg
6.0kg
9.5kg
12.0kg
13.5kg
15.5kg
4.9kg
9.6kg
5.0kg
5.0kg
10.0kg
5.0kg
5.0kg
6.0kg
7.5kg
O/Ps
Main Output(s)
Power
Fan
OVP
Controls
Meters
Size mm
Weight
RS-232
Linear
Single
RS-232
Mixed Mode Single
RS-232 & GPIB
Linear
Single
RS-232 & GPIB
Linear
Dual
RS-232 & GPIB
Linear
Triple
USB/RS232/GPIB
Linear
Single
USB/RS232/GPIB
Linear
Single
USB/RS232/GPIB
Linear
Triple
GPIB
Linear
Dual
RS-232 & GPIB Mixed Mode Single
RS-232 & GPIB Mixed Mode Single
0V - 30V @ 2A
0V - 35V @ 5A
0V - 32V @ 3.1A
0V - 32V @ 3.1A
0V - 32V @ 3.1A
0V - 35V @ 5A #
0V - 56V @ 4A #
0V - 35V @ 5A #
0V - 30V @ 2A
0V - 18V @ 20A
0V - 35V @ 10A
60W
175W
95W
190W
230W
105W
105W
215W
120W
360W
350W
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Digital
Digital
Analogue
Analogue
Analogue
Digital
Digital
Digital
Digital
Digital
Digital
LED
LED
LED
LED
LED
LED
LED
LED
LCD
LED
LED
140x160x195
140x160x195
207x170x300
350x170x300
425x170x300
141x171x300
141x171x300
282x171x300
210x130x380
210x130x350
210x130x350
4.4kg
3.0kg
6.5kg
12.5kg
16.0kg
5.0kg
5.0kg
10.0kg
11.0kg
5.5kg
5.5kg
EB2025T
Basic
Linear
TS1410
PowerPack
Linear
EL301
Compact
Linear
EL183
Compact
Linear
EL302
Compact
Linear
EL561
Compact
Linear
EL155
Compact
Linear
EL303
Compact
Linear
EL302D
Compact
Linear
EL302Tv
Compact
Linear
EX1810R
Precision
Mixed Mode
EX355
Compact
Mixed Mode
EX2020R
Precision
Mixed Mode
EX4210R
Precision
Mixed Mode
EX354D
Compact
Mixed Mode
EX354Tv
Compact
Mixed Mode
EX752M
Compact
Mixed Mode
PL154
Precision
Linear
PL320
Precision
Linear
PL330
Precision
Linear
PL320QMD
Precision
Linear
PL330QMD
Precision
Linear
PL320QMT
Precision
Linear
PL330QMT
Precision
Linear
TS3021S
Precision
Linear
TS3022S
Precision
Linear
QL355
High Precision
Linear
QL564
High Precision
Linear
QL355T
High Precision
Linear
TSX1820
Precision
Mixed Mode
TSX3510
Precision
Mixed Mode
CPX200
Precision
PowerFlex
CPX400A
Precision
PowerFlex
1.5 - 5V @ 2A
1.5 - 5V @ 5A
4V - 6V @ 4A
4V - 6V @ 7A
3.3V/5V @ 1A
THURLBY THANDAR INSTRUMENTS
EL Series
BUS PROGRAMMABLE MODELS
Model No
EL302-P
EX355-P
PL330-P
PL330D-P
PL330T-P
QL355-P
QL564-P
QL355T-P
TSP3222
TSX1820-P
TSX3510-P
Interfaces
Regulation
Logic Output
4V - 6V @ 7A
3.3V/5V @ 1A
* = Quad-mode selection of output combination - isolated, parallel, series or series tracking.
** = Multi-mode switching of output capability, 2 x 75V/2A, 1 x 75V/4A or 1 x 150V/2A.
Note: Further models may have been added since this brochure was printed.
For the latest product information please see our web site or contact our sales desk.
# = Multi-range output - maximum voltage and maximum current not available simultaneously.
Compact bench DC power supplies
low cost, linear regulated PSU range
Designed and built in Europe by:
single, dual and triple output models
RS-232 programmable model available
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon. Cambs. PE29 7DR United Kingdom
Tel: +44 (0)1480 412451 Fax: 450409 Email: sales@tti-test.com
Web: www.tti-test.com (UK website: www.tti.co.uk)
82100-1150 Iss. 4
EL series DC bench Power Supplies
compact linear PSUs offering performance and value
High performance at low cost
Low voltage auxiliary output
The EL series of DC bench power supplies has been designed to
meet the need for a compact power supply of good performance
at a reasonable price.
The new EL302Tv incorporates a third output fully variable between 1.5V and 5.0V with a fixed current limit of 2A.
They provides medium levels of power (up to 130 watts) with
fan-free cooling for silent operation.
New 3A and 5A models
Linear regulation
The EL series uses all linear regulation for the best possible performance. Excellent line and load regulation is matched by very
low output noise and good transient response.
The EL303 provides 0 to 30 volts at 0 to 3 amps, while the EL155
provides 0 to 15V at 0 to 5A.
Simultaneous digital metering
The EL series incorporates separate digital voltage and current
meters on each main output. The meters use bright 14mm (0.56")
LED displays and have an update rate of 4 per second providing
near instantaneous response.
EL-P models - operation via RS-232
Simultaneous metering of voltage and current provides accurate
information “at a glance” and avoids any possibility of misinterpretation. When an output switch is set to “off”, the current limit setting is displayed enabling conditions to be set before the load is
connected.
It offers a low-cost solution
for a basic programmable
PSU, and will be sufficient
for many applications
where the sophistication
and complexity of GPIB is
not needed.
The main outputs can operate in constant voltage or constant current mode with automatic crossover and mode indication. Coarse
and fine voltage controls are provided. The current control is logarithmic enabling low current levels to be set accurately.
Single, dual or triple outputs
The EL series includes six single output models plus one dual output and one triple output model.
The EL302D has two independent and isolated outputs each with
a 0 to 30V, 0 to 2A capability and its own on-off switch. The outputs can be wired in either series or parallel to provide voltages up
to 60 volts or currents up to 4 amps.
All outputs are intrinsically short circuit proof, and are protected
against external voltages and reverse currents.
Model
EL301
EL183
EL302
EL561
EL155
EL303
EL302D
EL302Tv
Outputs Voltage & Current
One
0 to 30V/0 to1A
One
0 to 18V/0 to 3.3A
One
0 to 30V/0 to 2A
One
0 to 56V/0 to 1.1A
One
0 to 15V/0 to 5A
One
0 to 30V/0 to 3A
Two
2 x (0 to 30V/0 to 2A)
2 x (0 to 30V/0 to 2A)
Three
+ 1.5V to 5V @ 2A
Power
30W
60W
60W
60W
75W
90W
120W
130W
The EL302P is a digitally controlled version of the EL302 with an
isolated RS-232 interface.
A simple command set
allows remote control of
voltage, current and output
enable along with read
-back of metering values
and operational status.
Local control is via three
rotary encoders providing
rapid and accurate setting
GENERAL
MAIN OUTPUTS
Voltage Range:
The set voltage can be measured using the digital meters.
Responding to the requirement for higher currents and power, two
new single output models have been added.
Constant voltage or constant current
EL SERIES
Current Range:
Operating Mode:
Voltage Setting:
Current Setting:
Load regulation:
Line regulation:
Output impedance:
Ripple & Noise
(20MHz bandwidth):
Transient Response:
Temp. Coefficient:
Output Protection:
Status Indication:
Output Switch:
Output Terminals:
OUTPUT TERMINALS
0V to 15V minimum (EL155)
0V to18V minimum (EL183)
0V to 30V minimum (EL301, EL302, EL303,
EL302D, EL302T)
0 to 56V minimum (EL561)
0A to 1A minimum (EL301)
0A to 1.1A minimum (EL561)
0A to 2A minimum (EL302, EL302D, EL302T)
0A to 3A minimum (EL303)
0A to 3.3A minimum (EL183)
0A to 5A minimum (EL155)
Constant voltage or constant current with automatic
cross-over and indication.
By coarse and fine controls.
By single logarithmic control.
<0.01% of max. O/P for a 90% load change.
<0.01% of max. O/P for a 10% line voltage change.
Typically <5mΩ in constant voltage mode. Typically >50kΩ
in constant current mode.
Typically <1mV rms, (CV mode).
<20µs to within 50mV of set level for 90% load change.
Typically <100ppm/oC.
Outputs will withstand forward voltages of up to 20V above
the rated output voltage. Reverse protection
by diode clamp for currents up to 3A.
Output ON lamps. Constant current mode lamps.
Electronic. Preset voltage and current displayed when output is off.
4mm terminals on 19mm (0.75") pitch.
METERS (main outputs)
Meter Types:
Meter Resolutions:
Meter Accuracies:
Separate 3 digit meters for voltage and current with 14mm
(0.56") LED displays. Reading rate 4/sec.
100mV, 10mA.
Voltage 0.3% ±1 digit. Current 0.6% ±1 digit.
AUXILIARY OUTPUT (EL302Tv only)
Voltage:
Meter accuracy:
Current limit:
Load regulation:
Line regulation:
Ripple & Noise
(20MHz bandwidth):
Output Protection:
Output Terminals:
Status Indication:
Current Setting:
By coarse and fine rotary encoders or RS-232 interface.
Resolution 10mV
By single rotary encoder or RS-232 interface.
Resolution 10mA
Separate 4 digit meter for voltage and 3 digit meter for current with 14mm (0.56") LED displays. Reading rate 4/sec.
Meter Resolutions:
100mV, 10mA.
Note that in constant voltage mode the meter will show the set voltage to a resolution of 10mV. However the metering resolution is limited to 100mV and when in constant current mode the last digit will be set to zero.
Meter Accuracies:
Voltage 0.3% ±1 digit. Current 0.6% ±1 digit.
RS-232 CONTROL
Setting Accuracy:
Setting Resolution:
Readback Accuracy:
Readback Resolution:
RS-232 interface, fully opto-isolated from power supply output. 9-pin D connector.
Variable from 600 baud to 9,600 baud.
Set Voltage, Set Current, Set Output On/Off, Read Voltage,
Read Current, Read On/Off, Read Mode (CV or CC).
Voltage 0.3% ±20mV. Current 0.6% ±20mA.
Voltage 10mV. Current 10mA.
Voltage 0.3% ±100mV. Current 0.6% ±20 mA.
Voltage 100mV. Current 10mA.
230V or 115V ±10%, 50/60Hz.
Adjustable internally. Installation Category II.
EL301 - 85 VA, EL302, EL302P, EL183, EL561 - 160VA,
EL155, EL303 - 250VA, EL302D, EL302T - 320VA.
TEMPERATURE & ENVIRONMENTAL
Operating Range:
Storage Range:
Environmental:
Cooling:
Safety:
EMC:
o
o
+5 C to +40 C, 20% to 80% RH.
o
o
-40 C to + 70 C.
Indoor use at altitudes to 2000m, Pollution Degree 2.
Silent fan-less convection cooling.
Complies with EN61010-1.
Complies with EN61326.
MECHANICAL
Size:
Weight:
EL301, EL302, EL302P, EL183, EL561, EL155, EL303 140x160x295 mm (WxHxD)
EL302D, EL302T - 260x160x295 mm (WxHxD).
EL301 - 3.4kg, EL302, EL302P, EL183, EL561 - 4.4kg
EL155, EL303 - 5.0kg, EL302D, EL302T - 7.5kg.
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and
reserves the right to alter specifications without prior notice.
Part of a large power supply family
TTi is one of the world’s foremost producers of laboratory power supplies.
If the EL series does not offer a model to meet your needs, then one of our
other series probably will.
QL series
Meter Types:
Baud Rate:
Remote Functions:
VA Rating:
Typically <5mVrms, <15mVpk-pk (CV mode).
Output will withstand up to 7V forward voltage.
Diode clamp reverse protection for currents up to 3A.
4mm terminals on 19mm (0.75") pitch.
UNREG lamp.
METERING
Interface:
AC Input:
EX series
(where different from EL302)
OUTPUT
4mm "binding post" terminals suitable for plugs or wires.
4mm safety sockets, suitable for shrouded plugs.
N.B. Ouput impedance and load regulation will be slightly
poorer with safety sockets because of the internal resistance
of the socket.
INPUT POWER
Variable <1.5V to >5V by front panel control.
0.3% ± 1 digit.
2A minimum.
<3% for 90% load change.
<0.2% for 10% line voltage change.
EL302P
Voltage Setting:
Standard Type:
Optional (all models):
The EX series is similar in style, size and model range to the EL series but
uses mixed-mode regulation with powers from 175W to 420W. An
RS-232 controlled version is also available.
The QL series is a high precision digitally controlled PSU range using
all-linear regulation and offering single and triple outputs. Standard and
bus-programmable versions are available, the latter having RS-232,
GPIB and USB interfaces.
TSX series
The TSX series is a half-rack sized high power single output PSU range
offering very high performance. Analogue and digitally controlled versions are available, the latter having RS-232 and GPIB interfaces.
CPX series
The CPX series is a dual output half-rack sized bench PSU range offering
PowerFlex capability. This allows higher currents to be generated at
lower voltages giving increased flexibility.
PL and TS series
The PL and TS series are long established power supplies which have become the standard for many companies across the world. Both use linear
regulation and offer a wide choice of models. The PL series is also available with RS-232 and GPIB interfaces.
Further models
TTi also produce some specialised PSUs not mentioned above. New
models are added each year. Please visit our web site for up to date information.
EL series DC bench Power Supplies
compact linear PSUs offering performance and value
High performance at low cost
Low voltage auxiliary output
The EL series of DC bench power supplies has been designed to
meet the need for a compact power supply of good performance
at a reasonable price.
The new EL302Tv incorporates a third output fully variable between 1.5V and 5.0V with a fixed current limit of 2A.
They provides medium levels of power (up to 130 watts) with
fan-free cooling for silent operation.
New 3A and 5A models
Linear regulation
The EL series uses all linear regulation for the best possible performance. Excellent line and load regulation is matched by very
low output noise and good transient response.
The EL303 provides 0 to 30 volts at 0 to 3 amps, while the EL155
provides 0 to 15V at 0 to 5A.
Simultaneous digital metering
The EL series incorporates separate digital voltage and current
meters on each main output. The meters use bright 14mm (0.56")
LED displays and have an update rate of 4 per second providing
near instantaneous response.
EL-P models - operation via RS-232
Simultaneous metering of voltage and current provides accurate
information “at a glance” and avoids any possibility of misinterpretation. When an output switch is set to “off”, the current limit setting is displayed enabling conditions to be set before the load is
connected.
It offers a low-cost solution
for a basic programmable
PSU, and will be sufficient
for many applications
where the sophistication
and complexity of GPIB is
not needed.
The main outputs can operate in constant voltage or constant current mode with automatic crossover and mode indication. Coarse
and fine voltage controls are provided. The current control is logarithmic enabling low current levels to be set accurately.
Single, dual or triple outputs
The EL series includes six single output models plus one dual output and one triple output model.
The EL302D has two independent and isolated outputs each with
a 0 to 30V, 0 to 2A capability and its own on-off switch. The outputs can be wired in either series or parallel to provide voltages up
to 60 volts or currents up to 4 amps.
All outputs are intrinsically short circuit proof, and are protected
against external voltages and reverse currents.
Model
EL301
EL183
EL302
EL561
EL155
EL303
EL302D
EL302Tv
Outputs Voltage & Current
One
0 to 30V/0 to1A
One
0 to 18V/0 to 3.3A
One
0 to 30V/0 to 2A
One
0 to 56V/0 to 1.1A
One
0 to 15V/0 to 5A
One
0 to 30V/0 to 3A
Two
2 x (0 to 30V/0 to 2A)
2 x (0 to 30V/0 to 2A)
Three
+ 1.5V to 5V @ 2A
Power
30W
60W
60W
60W
75W
90W
120W
130W
The EL302P is a digitally controlled version of the EL302 with an
isolated RS-232 interface.
A simple command set
allows remote control of
voltage, current and output
enable along with read
-back of metering values
and operational status.
Local control is via three
rotary encoders providing
rapid and accurate setting
GENERAL
MAIN OUTPUTS
Voltage Range:
The set voltage can be measured using the digital meters.
Responding to the requirement for higher currents and power, two
new single output models have been added.
Constant voltage or constant current
EL SERIES
Current Range:
Operating Mode:
Voltage Setting:
Current Setting:
Load regulation:
Line regulation:
Output impedance:
Ripple & Noise
(20MHz bandwidth):
Transient Response:
Temp. Coefficient:
Output Protection:
Status Indication:
Output Switch:
Output Terminals:
OUTPUT TERMINALS
0V to 15V minimum (EL155)
0V to18V minimum (EL183)
0V to 30V minimum (EL301, EL302, EL303,
EL302D, EL302T)
0 to 56V minimum (EL561)
0A to 1A minimum (EL301)
0A to 1.1A minimum (EL561)
0A to 2A minimum (EL302, EL302D, EL302T)
0A to 3A minimum (EL303)
0A to 3.3A minimum (EL183)
0A to 5A minimum (EL155)
Constant voltage or constant current with automatic
cross-over and indication.
By coarse and fine controls.
By single logarithmic control.
<0.01% of max. O/P for a 90% load change.
<0.01% of max. O/P for a 10% line voltage change.
Typically <5mΩ in constant voltage mode. Typically >50kΩ
in constant current mode.
Typically <1mV rms, (CV mode).
<20µs to within 50mV of set level for 90% load change.
Typically <100ppm/oC.
Outputs will withstand forward voltages of up to 20V above
the rated output voltage. Reverse protection
by diode clamp for currents up to 3A.
Output ON lamps. Constant current mode lamps.
Electronic. Preset voltage and current displayed when output is off.
4mm terminals on 19mm (0.75") pitch.
METERS (main outputs)
Meter Types:
Meter Resolutions:
Meter Accuracies:
Separate 3 digit meters for voltage and current with 14mm
(0.56") LED displays. Reading rate 4/sec.
100mV, 10mA.
Voltage 0.3% ±1 digit. Current 0.6% ±1 digit.
AUXILIARY OUTPUT (EL302Tv only)
Voltage:
Meter accuracy:
Current limit:
Load regulation:
Line regulation:
Ripple & Noise
(20MHz bandwidth):
Output Protection:
Output Terminals:
Status Indication:
Current Setting:
By coarse and fine rotary encoders or RS-232 interface.
Resolution 10mV
By single rotary encoder or RS-232 interface.
Resolution 10mA
Separate 4 digit meter for voltage and 3 digit meter for current with 14mm (0.56") LED displays. Reading rate 4/sec.
Meter Resolutions:
100mV, 10mA.
Note that in constant voltage mode the meter will show the set voltage to a resolution of 10mV. However the metering resolution is limited to 100mV and when in constant current mode the last digit will be set to zero.
Meter Accuracies:
Voltage 0.3% ±1 digit. Current 0.6% ±1 digit.
RS-232 CONTROL
Setting Accuracy:
Setting Resolution:
Readback Accuracy:
Readback Resolution:
RS-232 interface, fully opto-isolated from power supply output. 9-pin D connector.
Variable from 600 baud to 9,600 baud.
Set Voltage, Set Current, Set Output On/Off, Read Voltage,
Read Current, Read On/Off, Read Mode (CV or CC).
Voltage 0.3% ±20mV. Current 0.6% ±20mA.
Voltage 10mV. Current 10mA.
Voltage 0.3% ±100mV. Current 0.6% ±20 mA.
Voltage 100mV. Current 10mA.
230V or 115V ±10%, 50/60Hz.
Adjustable internally. Installation Category II.
EL301 - 85 VA, EL302, EL302P, EL183, EL561 - 160VA,
EL155, EL303 - 250VA, EL302D, EL302T - 320VA.
TEMPERATURE & ENVIRONMENTAL
Operating Range:
Storage Range:
Environmental:
Cooling:
Safety:
EMC:
o
o
+5 C to +40 C, 20% to 80% RH.
o
o
-40 C to + 70 C.
Indoor use at altitudes to 2000m, Pollution Degree 2.
Silent fan-less convection cooling.
Complies with EN61010-1.
Complies with EN61326.
MECHANICAL
Size:
Weight:
EL301, EL302, EL302P, EL183, EL561, EL155, EL303 140x160x295 mm (WxHxD)
EL302D, EL302T - 260x160x295 mm (WxHxD).
EL301 - 3.4kg, EL302, EL302P, EL183, EL561 - 4.4kg
EL155, EL303 - 5.0kg, EL302D, EL302T - 7.5kg.
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and
reserves the right to alter specifications without prior notice.
Part of a large power supply family
TTi is one of the world’s foremost producers of laboratory power supplies.
If the EL series does not offer a model to meet your needs, then one of our
other series probably will.
QL series
Meter Types:
Baud Rate:
Remote Functions:
VA Rating:
Typically <5mVrms, <15mVpk-pk (CV mode).
Output will withstand up to 7V forward voltage.
Diode clamp reverse protection for currents up to 3A.
4mm terminals on 19mm (0.75") pitch.
UNREG lamp.
METERING
Interface:
AC Input:
EX series
(where different from EL302)
OUTPUT
4mm "binding post" terminals suitable for plugs or wires.
4mm safety sockets, suitable for shrouded plugs.
N.B. Ouput impedance and load regulation will be slightly
poorer with safety sockets because of the internal resistance
of the socket.
INPUT POWER
Variable <1.5V to >5V by front panel control.
0.3% ± 1 digit.
2A minimum.
<3% for 90% load change.
<0.2% for 10% line voltage change.
EL302P
Voltage Setting:
Standard Type:
Optional (all models):
The EX series is similar in style, size and model range to the EL series but
uses mixed-mode regulation with powers from 175W to 420W. An
RS-232 controlled version is also available.
The QL series is a high precision digitally controlled PSU range using
all-linear regulation and offering single and triple outputs. Standard and
bus-programmable versions are available, the latter having RS-232,
GPIB and USB interfaces.
TSX series
The TSX series is a half-rack sized high power single output PSU range
offering very high performance. Analogue and digitally controlled versions are available, the latter having RS-232 and GPIB interfaces.
CPX series
The CPX series is a dual output half-rack sized bench PSU range offering
PowerFlex capability. This allows higher currents to be generated at
lower voltages giving increased flexibility.
PL and TS series
The PL and TS series are long established power supplies which have become the standard for many companies across the world. Both use linear
regulation and offer a wide choice of models. The PL series is also available with RS-232 and GPIB interfaces.
Further models
TTi also produce some specialised PSUs not mentioned above. New
models are added each year. Please visit our web site for up to date information.
Power Supply Range and Model Selector
BENCH MODELS
Model No
Type
Regulation
O/Ps
Main Output(s)
Logic Output
Power
Fan
OVP
Controls
Meters
Size mm
Weight
Triple
Single
Single
Single
Single
Single
Single
Single
Dual
Triple
Single
Single
Single
Single
Dual
Triple
Dual **
Single
Single
Single
Dual *
Dual *
Triple *
Triple *
Single
Dual
Single
Single
Triple
Single
Single
Dual
Dual
0.3 - 20V@ 0.25A
12V - 14V @ 10A
0V - 30V @ 1A
0V - 18V @ 3.3A
0V - 30V @ 2A
0V - 56V @ 1.1A
0V - 15V @ 5A
0V - 30V @ 3A
0V - 30V @ 2A
0V - 30V @ 2A
0V - 18V @ 10A
0V - 35V @ 5A
0V - 20V @ 20A
0V - 42V @ 10A
0V - 35V @ 4A
0V - 35V @ 4A
0V - 75V @ 2A
0V - 15V @ 4A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 32V @ 2.1A
0V - 32V @ 3.1A
0V - 30V @ 2A
0V - 30V @ 2A
0V - 35V @ 5A #
0V - 56V @ 4A #
0V - 35V @ 5A #
0V - 18V @ 20A
0V - 35V @ 10A
0V - 35V @ 10A #
#
0V - 60V @ 20A
5V @ 1A
15W
140W
30W
60W
60W
60W
75W
90W
120W
130W
180W
175W
400W
420W
280W
305W
300W
60W
65W
95W
130W
190W
155W
230W
60W
120W
105W
112W
215W
360W
350W
350W
840W
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
Digital
Digital
Digital
Analogue
Analogue
Analogue
Analogue
Analogue
Analogue
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LED
LCD
LCD
LED
LED
LED
LED
LED
LED
LED
220x82x230
190x160x273
140x160x195
140x160x195
140x160x195
140x160x195
140x160x195
140x160x195
260x160x195
260x160x195
140x160x195
140x160x195
140x160x195
140x160x195
260x160x195
260x160x195
260x160x195
155x170x265
155x170x265
155x170x300
350x170x265
350x170x300
425x170x265
425x170x300
160x160x238
308x160x238
141x171x300
141x171x300
282x171x300
210x130x350
210x130x350
210x130x350
210x130x350
1.8kg
7.8kg
3.4kg
4.4kg
4.4kg
4.4kg
5.0kg
5.0kg
7.5kg
7.5kg
3.0kg
3.0kg
3.5kg
3.5kg
4.3kg
4.3kg
4.4kg
5.0kg
5.0kg
6.0kg
9.5kg
12.0kg
13.5kg
15.5kg
4.9kg
9.6kg
5.0kg
5.0kg
10.0kg
5.0kg
5.0kg
6.0kg
7.5kg
O/Ps
Main Output(s)
Power
Fan
OVP
Controls
Meters
Size mm
Weight
RS-232
Linear
Single
RS-232
Mixed Mode Single
RS-232 & GPIB
Linear
Single
RS-232 & GPIB
Linear
Dual
RS-232 & GPIB
Linear
Triple
USB/RS232/GPIB
Linear
Single
USB/RS232/GPIB
Linear
Single
USB/RS232/GPIB
Linear
Triple
GPIB
Linear
Dual
RS-232 & GPIB Mixed Mode Single
RS-232 & GPIB Mixed Mode Single
0V - 30V @ 2A
0V - 35V @ 5A
0V - 32V @ 3.1A
0V - 32V @ 3.1A
0V - 32V @ 3.1A
0V - 35V @ 5A #
0V - 56V @ 4A #
0V - 35V @ 5A #
0V - 30V @ 2A
0V - 18V @ 20A
0V - 35V @ 10A
60W
175W
95W
190W
230W
105W
105W
215W
120W
360W
350W
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Digital
Digital
Analogue
Analogue
Analogue
Digital
Digital
Digital
Digital
Digital
Digital
LED
LED
LED
LED
LED
LED
LED
LED
LCD
LED
LED
140x160x195
140x160x195
207x170x300
350x170x300
425x170x300
141x171x300
141x171x300
282x171x300
210x130x380
210x130x350
210x130x350
4.4kg
3.0kg
6.5kg
12.5kg
16.0kg
5.0kg
5.0kg
10.0kg
11.0kg
5.5kg
5.5kg
EB2025T
Basic
Linear
TS1410
PowerPack
Linear
EL301
Compact
Linear
EL183
Compact
Linear
EL302
Compact
Linear
EL561
Compact
Linear
EL155
Compact
Linear
EL303
Compact
Linear
EL302D
Compact
Linear
EL302Tv
Compact
Linear
EX1810R
Precision
Mixed Mode
EX355
Compact
Mixed Mode
EX2020R
Precision
Mixed Mode
EX4210R
Precision
Mixed Mode
EX354D
Compact
Mixed Mode
EX354Tv
Compact
Mixed Mode
EX752M
Compact
Mixed Mode
PL154
Precision
Linear
PL320
Precision
Linear
PL330
Precision
Linear
PL320QMD
Precision
Linear
PL330QMD
Precision
Linear
PL320QMT
Precision
Linear
PL330QMT
Precision
Linear
TS3021S
Precision
Linear
TS3022S
Precision
Linear
QL355
High Precision
Linear
QL564
High Precision
Linear
QL355T
High Precision
Linear
TSX1820
Precision
Mixed Mode
TSX3510
Precision
Mixed Mode
CPX200
Precision
PowerFlex
CPX400A
Precision
PowerFlex
1.5 - 5V @ 2A
1.5 - 5V @ 5A
4V - 6V @ 4A
4V - 6V @ 7A
3.3V/5V @ 1A
THURLBY THANDAR INSTRUMENTS
EL Series
BUS PROGRAMMABLE MODELS
Model No
EL302-P
EX355-P
PL330-P
PL330D-P
PL330T-P
QL355-P
QL564-P
QL355T-P
TSP3222
TSX1820-P
TSX3510-P
Interfaces
Regulation
Logic Output
4V - 6V @ 7A
3.3V/5V @ 1A
* = Quad-mode selection of output combination - isolated, parallel, series or series tracking.
** = Multi-mode switching of output capability, 2 x 75V/2A, 1 x 75V/4A or 1 x 150V/2A.
Note: Further models may have been added since this brochure was printed.
For the latest product information please see our web site or contact our sales desk.
# = Multi-range output - maximum voltage and maximum current not available simultaneously.
Compact bench DC power supplies
low cost, linear regulated PSU range
Designed and built in Europe by:
single, dual and triple output models
RS-232 programmable model available
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon. Cambs. PE29 7DR United Kingdom
Tel: +44 (0)1480 412451 Fax: 450409 Email: sales@tti-test.com
Web: www.tti-test.com (UK website: www.tti.co.uk)
82100-1150 Iss. 4
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