Australian Resistors – Supplier of Wire Wound Resistors and Power Resistors

Wirewound Resistors – Basic Resistor Principles

Understanding Critical Parameters In Resistor Selection – Ohms Law
Going back to college fundamental physics is helpful in understanding the most commonly used parameters used in specifying wirewound and power resistors. Good engineering practice will generally mean that a certain degree of ‘over specifying’ will result in long term reliability and performance of the final product – be it a motor control circuit, power supply, resistor bank, heating or cooling appliances or printed circuit board control circuitry.

Resistance – Ohms Law

Ohms law is possibly the most fundamental equation taught in electrical engineering. It is the foundation principle used to determine the relationship […]

June 17th, 2014|metal clad resistors, Power Resistor, resistor theory, Wire Wound Resistors, wirewound resistor selection|

Power Resistors – Light Rail Braking Load Bank

Power Resistor Range And Specifications
There are many applications for a power resistor where a very substantial power rating is required that exceeds the wattage available from our range of power resistors. The current range of power resistors covers a range from power ratings from 5 watts to 1000 watts.

The corresponding ceramic former lengths range from, for example, 51mm for the DG series resistor rated at 20 watts, to 165mm for the HA series 100 watt resistor up to the YM type power resistor that has a 1Kwatt rating and has a ceramic length of 475mm.

There are numerous applications where a […]

January 16th, 2014|Power Resistor|

Power Resistor – HP 250 Watt Tubular Resistor

The range of tubular power resistors has been expanded to include a 250 watt version of this versatile range of resistors. This makes a useful addition to the range and higher power ratings are now available including 200 watt, 250 watt and 350 watt. High power resistors have been used in hundreds of applications by Australian industry over the last 40 years.
Termination Options For Power Resistors
This range of power resistors has a very versatile range of terminal options to suit different end applications and wiring situations giving manufacturers the ability to quickly wire up the resistors into the finished product. Termination […]

December 6th, 2013|Power Resistor|

Power Resistors – HA series power resistor application – Industrial Fan Speed Control

Application In Industrial Oven Manufacture
A Sydney based client approached us as they needed assistance in finding a suitable solution for an oven fan speed control application. The client manufactures a range of industrial ovens used for a variety of purposes from paint curing to baking enamel finishes onto metallic machined components. The ovens are constructed and designed using a motorised conveyer belt system that feeds the required items into a heating chamber which is heated by way of a number of high power industrial heating elements. When the items exit through the oven they then need to be slowly cooled […]

November 18th, 2013|Power Resistor|

Impulse Tolerant Power Resistor Application

Power Resistor – ASW Series Application Example
The ASW series power resistor by nature of its construction lends itself to high current in rush applications and have excellent impulse tolerant characteristics. Deigned primarily for printed circuit board mounting applications they have been used in products ranging from UPS’s, D.C. to D.C. converters, electrical metering and power conversion circuits.
Electrical Metering Application For Power Resistor
The ASW 2 precision wound power resistor is rated at 3 watts and has an available resistance range from 0.5 ohms to 1800 ohms and has available tolerances ranging from 1 percent to 5 percent. A client was developing a […]

November 7th, 2013|Power Resistor|