Power Supply|Physics – Central Science Supplies

Multiple Output Linear DC Power Supply

adminbenscience — Tue, 13 Oct 2026 17:05:19 +0000

DC_Power_Supply_ES-2303E – Datasheet

The ES2000 series are linear DC power supplies with 3 channels, 195W to 315W output. In constant voltage and
current operations, the power supply provides high regulation and low ripple & noise. Auto series and parallel
operations double output voltage and current. Heat sink and automatic cooling fan control give sufficient cooling to
the power supply and minimize fan noise. The output ON/OFF control and preset voltage & current function protect
the power supply and related loads from unexpected damages. The ES2000 series are widely used in applications
of powering operational amplifier, push pull stages, logic circuit and definition systems.
Features
 Two independent adjustable outputs 0~30V/0~3A x2, 0~30V/0~5A x2
 Constant voltage and constant current operations, auto CV and CC switch
 Low ripple and noise, low temperature drift
 Auto Series and Parallel tracking operations
 Output ON/OFF control
 High efficiency, high power density
 Over load and reverse polarity protections
 Dual-color four digital panel meters

SPECIFICATION

Constant voltage operation
Line regulation ≤0.01%+3mV
Load regulation ≤0.01%+3mV (I≤3A); ≤0.02%+5mV (I>3A)
Ripple & Noise (5Hz~1MHz) ≤1mVrms (I≤3A); ≤2mVrms (I>3A)
Constant current operation
Line regulation ≤0.2%+3mA
Load regulation ≤0.2%+3mA (I≤3A); ≤0.2%+5mA (I>3A)
Ripple & Noise ≤3mArms (I≤3A); ≤6mArms (I>3A)
Tracking operation
Parallel Line regulation ≤0.01%+3mV
Load regulation ≤0.01%+3mV (I≤3A); ≤0.02%+5mV (I>3A)
Series Line regulation ≤0.01%+5mV
Load regulation ≤300mV
Tracking error ≤0.5%+10mV of the master, no load (with load, add load regulation ≤300mV)
Display
Voltmeter 3 digits LED display
Ammeter 3 digits LED display
Resolution 100mV/10mA
Accuracy Real voltage and current output: ±(1% reading+2 digits)
Preset voltage and current: ±(1% reading+8 digits)
General
Insulation Between base and output terminal: ≥20MΩ/500VDC
Between base and AC power cord: ≥300MΩ/500VDC
Operating environment 0℃~40℃, ≤80%RH
Storage environment -10℃~70℃, ≤70%RH
Power source AC110V/220V±10%, 50/60Hz
Accessories Power cord x1, Operation manual x1

Power Supply AC/DC Varivolt 0-12 V / 6 A

adminbenscience — Tue, 13 Oct 2026 16:53:09 +0000

Continuously variable 0-12VAC and full-wave rectified DC at maximum 6A continuously or 8A for short periods (IPC-0074-P). Resettable thermal cut-out. Outputs from two pairs of colour coded 4mm sockets. Output voltage is indicated by means of a calibrated scale. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 255 x 220 x 110mm overall

Mass: 4.75kg

AC Output Voltage Range: 0 to 12VAC

Maximum AC Output Current: 6A (8A short period of time)

DC Output Voltage Range: 0 to 12VDC

Maximum DC Output Current: 6A (8A short period of time)

Power Supply AC/DC Varivolt 0-20V / 6 A

adminbenscience — Tue, 13 Oct 2026 16:53:06 +0000

Continuously variable 0-20VAC and full-wave rectified DC at maximum 6A continuously or 8A for short periods (IPC-0195-P). Resettable thermal cut-out. Outputs from two pairs of colour coded 4mm sockets. Output voltage is indicated by means of a calibrated scale. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 255 x 220 x 110mm overall

Mass: 4.75kg

AC Output Voltage Range: 0 to 20VAC

Maximum AC Output Current: 6A (8A short period of time)

DC Output Voltage Range: 0 to 20VDC

Maximum DC Output Current: 6A (8A short period of time)

Power Supply High Voltage 0-30/300V DC,6.3V AC

adminbenscience — Tue, 13 Oct 2026 16:46:40 +0000

Voltages of 0 to 30VDC and 0 to 300VDC at up to 60mA (IPC-0294-P). Outputs are fully floating to provide negative voltages if required and are taken from pairs of colour coded 4mm sockets on the front panel. Each output has a continuously variable voltage control, with electronic current limiting circuitry. An indication of the output voltage is given by a graduated scale on each voltage control. A pair of 4mm sockets on the front panel provide 6.3VAC at up to 2A for filament heating. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 2.4kg

DC Output Voltage Range No1: 0 to 30VDC

DC Output Voltage Range No2: 0 to 300VDC

Maximum DC Output Current: 60mA (both ranges)

AC Output Voltage: 6.3VAC

Maximum AC Output Current: 2A

Power Supply Dual Output 12V AC / 24V DC

adminbenscience — Tue, 13 Oct 2026 16:46:01 +0000

This instrument is designed as a general purpose laboratory power supply (IPC-0978-P). It has two isolated outputs which operate independently of each other.

The AC output is selected by means of a 4-position switch on the front panel. Selected voltages are 2, 4, 6 and 12V at 4A continuously, or up to 5A for periods of 1 hour. The output is supplied via a pair of 4mm sockets on the front panel colour coded white. The output is protected from overload or short circuit by a current sensing circuit breaker mounted on the front panel.

The DC output is smoothed and regulated and is continuously variable from 0V to 24V at currents up to 3A. Voltage ripple typically less than 50mV. The output is supplied via a pair of 4mm sockets on the front panel colour coded red (positive) and black (negative). The output is protected from short circuit or overload by an electronic regulator.

The outputs may be used simultaneously as long as the combined load does not exceed 3A.

Power on is indicated on the front panel by a green LED. An illuminated on/off switch is mounted on the rear panel adjacent to a fused IEC mains inlet. Enclosed in a robust metal case with a durable powder coated finish. Supplied with detachable mains lead and instructions.

A pair of graphs showing how the output voltage of this power supply varies as the current supplied is increased is included in the instruction leaflet for this instrument.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 2.9kg

AC Output Voltage Range: 2, 4, 6 and 12VAC

Maximum AC Output Current: 4A (5A upto 1 hour)

DC Output Voltage Range: 0 to 24VDC

Maximum DC Output Current: 3A

Power Supply DC Regulated 0-15 V / 1 A

adminbenscience — Tue, 13 Oct 2026 16:33:18 +0000

Designed for use with electronic modules, transistors, amplifiers etc. (IPC-0572-P). where the current required is not more than 1A, this power supply provides a smoothed and regulated DC output voltage with a ripple typically less than 50mV. Output up to 15VDC positive and negative (with respect to zero) in 5 stepped ranges: 5, 6, 9, 12 and 15VDC. The outputs are from three 4mm sockets: positive, zero and negative, colour coded red, blue and black respectively. The outputs are switched by means of a rotating knob. Overload and short circuit protection is built in. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 2.3kg

DC Output Voltage Range: 5, 6, 9, 12 and 15VDC (both negative and positive)

Maximum DC Output Current: 1A

Power Supply Student AC/DC 0-14 V / 5 A

adminbenscience — Tue, 13 Oct 2026 16:32:59 +0000

Voltage 2, 4, 6, 9, 12 or 14VAC or full-wave rectified DC at 4A continuously, or up to 5A for periods of 1 hour (IPC-0256-P). Voltage ranges are selected and locked by means of a removable key. In any incidence of overload, including direct short, a current sensing circuit breaker mounted on the front panel will operate and disconnect the output voltage. Outputs are taken from colour coded 4mm sockets mounted on the front panel. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish. Supplied with key and instruction

A pair of graphs showing how the output voltage of this power supply varies as the current supplied is increased is included in the instruction leaflet for this instrument.

Accessory
Spare Key – IPC-0257-P

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 2.8kg

AC Output Voltage Range: 2, 4, 6, 9, 12 and 14VAC

Maximum AC Output Current: 4A (5A upto 1 hour)

DC Output Voltage Range: 2, 4, 6, 9, 12 and 14VDC

Maximum DC Output Current: 4A (5A upto 1 hour)

Power Supply Lovolt AC/DC 0-14 V / 5A

adminbenscience — Tue, 13 Oct 2026 16:32:15 +0000

Voltage 2, 4, 6, 9, 12 or 14VAC or full-wave rectified DC at 4A continuously, or up to 5A for periods of 1 hour (IPC-0234-P). Voltages are selected by means of a rotating switch on the front panel. In any incidence of overload, including direct short, a current sensing circuit breaker mounted on the front panel will operate and disconnect the output voltage. Outputs are taken from colour coded 4mm sockets mounted on the front panel. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish. Supplied with mains lead and instructions.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 2.8kg

AC Output Voltage Range: 2, 4, 6, 9, 12 and 14VAC

Maximum AC Output Current: 4A (5A upto 1 hour)

DC Output Voltage Range: 2, 4, 6, 9, 12 and 14VDC

Maximum DC Output Current: 4A (5A upto 1 hour)

Transformer Multitap AC 0-12 V / 8 A

adminbenscience — Tue, 13 Oct 2026 16:21:27 +0000

Outputs tapped at 0, 2, 3, 8 and 12VAC at currents up to 6A continuous or 8A for periods of up to 1 hour

(IPC-0484-P).
Output is from 4mm sockets radially spaced from a central common socket. Voltage outputs of 1, 2, 3, 4, 5, 6, 9, 10, and 12VAC can be selected by choice of sockets. An illuminated on/off switch is mounted on the rear panel adjacent to a fused appliance inlet. Housed in a robust metal case with a durable powder coated finish.

Electrical Supply: 220-240VAC, 50-60Hz

Dimensions: 179 x 190 x 85mm overall

Mass: 3.3kg

AC Output Voltage Tappinngs: 0, 2, 3, 8 and 12VAC

Maximum AC Output Current: 6A (8A up to 1 hour)

Battery Eliminator 0-6VDC 1A

adminbenscience — Tue, 13 Oct 2026 16:15:49 +0000

Power Up Your Experiments with the Battery Eliminator 0-6VDC 1A Power Supply
Introducing our Battery Eliminator 0-6VDC 1A Power Supply, a cost-effective and versatile solution for your power needs. Designed as a low-cost alternative to dry cell batteries, this power supply is housed in a robust ABS plastic case and offers a regulated DC output in the range of 0-6V with a maximum current of 1A. Say goodbye to the hassle of constantly replacing batteries and enjoy a steady power source for your experiments and applications.

Key Features of the Battery Eliminator 0-6VDC 1A:

Economical Battery Replacement: The Battery Eliminator DC Power Supply provides a practical and economical alternative to traditional dry cell batteries. It is the ideal choice for applications where batteries are typically used, offering a more cost-efficient and sustainable power solution.
Robust Construction: Housed in a durable ABS plastic case, this power supply is built to withstand the rigors of laboratory and educational settings. Its robust construction ensures longevity and reliability, making it a valuable addition to your equipment.
Smooth and Regulated DC: Enjoy the benefits of smooth and regulated DC output with this power supply. It offers selectable output voltage levels of 1.5V, 3V, 4.5V, and 6V, allowing you to tailor the power to your specific requirements. Whether you’re conducting experiments or powering electronic devices, this power supply delivers consistent and stable DC voltage.
Convenient Output Sockets: The power supply is equipped with 4mm red and black sockets for easy and secure connections. These sockets provide a hassle-free way to connect your devices or experiments, ensuring a reliable power source.

Dimensions:

Overall Dimensions: 150 x 100 x 80mm
Weight: 0.85kg

The Battery Eliminator DC Power Supply is your dependable source of regulated DC power, eliminating the need for traditional batteries and providing cost-effective and consistent power for your experiments and applications. With its robust construction, selectable voltage levels, and convenient output sockets, it’s a valuable tool for educators, researchers, and electronics enthusiasts.

Notes: This power supply is intended for educational and experimental purposes only and is not suitable for critical or sensitive applications.