2-12V AC/DC Powerlock

Code: EPU0115

The Powerlock power supply has both a lockable AC and DC outputs ranges by a simple key making it impossible for students to change the voltage. The Powerlock offers 2,4,6,8,10 and 12 in both DC and AC. Outputs may also be used simultaneously up to the rated output required. For safety, the output is also protected by a simple push button cut-out. Each unit is supplied with 2 that can be used on all Powerlock units if needed. Supplied with 2 keys.

Description

  • Output voltages AC & DC
  • 2,4,6,8,10,12 voltage range in AC and DC
  • Current 5A
  • Voltage type – Stepped
  • Output type – Full wave rectified, non-regulated
  • Push button trip reset
  • Mains input 230/240V AC, 50Hz
  • Supplied with mains plug and lead
  • Manufactured in the UK

Quick Comparison

Settings2-12V AC/DC Powerlock removeDual Output PSU (12VAC/12VDC) removeIrwin Portable Appliance Tester (PATCH) leads removeIrwin 4 x D Cell Battery Holder Pack of 10 removeIrwin De-Mountable Transformer removeBERT - Battery Electrical Resistance Tester remove
Name2-12V AC/DC Powerlock removeDual Output PSU (12VAC/12VDC) removeIrwin Portable Appliance Tester (PATCH) leads removeIrwin 4 x D Cell Battery Holder Pack of 10 removeIrwin De-Mountable Transformer removeBERT - Battery Electrical Resistance Tester remove
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Description

Code: EPU0115

The Powerlock power supply has both a lockable AC and DC outputs ranges by a simple key making it impossible for students to change the voltage. The Powerlock offers 2,4,6,8,10 and 12 in both DC and AC. Outputs may also be used simultaneously up to the rated output required. For safety, the output is also protected by a simple push button cut-out. Each unit is supplied with 2 that can be used on all Powerlock units if needed. Supplied with 2 keys.

Code: IPC-1402-P

This instrument (IPC-1402-P) is designed as a general purpose laboratory power supply. 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 12V 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.
Additional spare or replacement leads for our Portable Appliance Tester and Checker.
By connecting an ac power source to one of the coils and reading the voltage from the other coil transformer action (either step up or step down) may be readily demonstrated. The efficiency of the transformer may be studied –does the efficiency change if the laminate top is not firmly fixed? What happens if it is not present? Other more esoteric effects such as Magnetostriction may also be studied.

Code: EBR5010

BERT is a simple way of introducing electrical resistance and resistivity to a class. It consists of a circuit board that may be drawn on using the supplied pencil. Connecting the two sides of the board together by a pencil line gives a conducting track and the LED lights. The brightness of the LED gives an indication of the resistance of the path.  Drawing the line thicker decreases the resistance, as does shortening the path. Resistances in parallel may be studied and a “volume control” simply made.   BERT may also be used to test various materials to see whether they are conductors or insulators. Liquids and pastes may also be tested.  The conductivity of the class may be studied as well as how a switch works.  When you are finished the pencil lines may be removed with the supplied eraser.
Content
  • Output voltages AC & DC
  • 2,4,6,8,10,12 voltage range in AC and DC
  • Current 5A
  • Voltage type - Stepped
  • Output type - Full wave rectified, non-regulated
  • Push button trip reset
  • Mains input 230/240V AC, 50Hz
  • Supplied with mains plug and lead
  • Manufactured in the UK
Description: Dual Output PSU (12VAC/12VDC) Part Number: IPC-1402-P 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 12VDC Maximum DC Output Current: 3A

Code: EPT5001LDS

Additional spare or replacement leads for our Portable Appliance Tester and Checker.

Code: EBH0004

The Irwin Tapped Battery Holder holds 4 x D (R20) batteries with outputs at 1.5, 3, 4.5 and 6V. Batteries and leads not supplied. Each output has a 4mm socket. Manufactured in the UK from premium strong perspex.

Code: L1017

A demountable transformer kit is an ideal way to demonstrate transformer action.  The kit comprises three coils, one with 300 turns, one with 600 turns and one with 1200 turns. These slide onto a laminated steel frame to form several possible transformer configurations.
A stunningly effective way of teaching the basics of electrical resistance. The kit comprises of: 
  • 1 x BERT circuit board
  • 1 x PP3 battery
  • 1 x 3B pencil
  • 1 x crocodile clip connecting lead
  • 1 x eraser
  • 1 x full set of teaching notes.
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