Tel: 0428261110|E: sales@australianresistors.com.au

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Power Resistor Application In High Wattage Power Supplies

We receive a large number of enquiries for power resistors for applications in a wide range of power supplies. High wattage power supplies are used in railway power converters and controllers, signalling and safety monitoring systems. The need for pulse tolerant and transient resistant resistors is especially important as the railway environment is electrically “noisy” and swtiching of high voltage transformers can create transients with voltages greater than 1KV for short periods of time (Typically microseconds).

The Y Series of Power Resistors  is suitable for applications requiring 500 Watt to 1200 Watt power rating and are especially useful in high temperature environments. […]

November 3rd, 2024|Applications, High Power Resistors, Resistor Applications, Wire Wound Resistors|
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May 2021 – Metal Clad Power Resistors for Electronic Door Bells

We have had a number of  enquiries for 25-30 ohm 50 Watt power resistors for electronic door bells recently. The GMR series range of metal clad wire wound resistors offers the GMR-50W 50 watt aluminium housed resistor which suits this application due to its small physical dimensions, solid construction and excellent stability. Data can be found here

We have also introduced a high power range of aluminium housed resistors, the SMRH series. Data can be found here

June 2nd, 2021|Applications, Resistors For Door Bells|
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February 2020 – Resistor Supplier Update

A new year is underway at Australian Resistors. We continue to be one of Australia’s leading suppliers of wire wound resistors, power resistors and specialist resistor products with a history of supplying resistors to the Australian manufacturing sector spanning well over fifty years.

We pride ourselves on offering expert technical advice and prompt delivery and look forward to working with you on whatever project you have. Please note our new contact phone number – 0428261110

February 20th, 2020|Uncategorized|
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April 2019 Update – Australian Resistors

Australian Resistors has closed its manufacturing facility in Minto but continues to supply locally made product as well as a wide range of internationally sourced product – see our products page for further details and contact us for any assistance.

 

 

April 9th, 2019|resistor suppliers Australia|
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Custom Power Resistor Assemblies

As well as our standard range or wire wound resistors and power resistors we are adept at manufacturing custom power resistor assemblies and power resistor load banks. We have manufactured a wide range of custom resistor products for over 50 years and have supplied them into a wide range of industries including:

railways
busses
white goods (including range hoods, cook tops, washing machines
renewable energy
power stations
electrical metering
industrial electronics

Based on customers electrical requirements for their custom resistor assembly, we can generally come up with prototype samples with 2 weeks which allows our clients to evaluate them ‘in circuit’. […]

May 28th, 2018|Custom Power Resistor Assemblies, Power Resistor, Wire Wound Resistors|
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Wire Wound Resistors – Local Manufacturing Advantages

Being a local manufacturer of wire wound resistor assemblies has offered local manufacturers many benefits over the last 50 years. Based in Minto, N.S.W. , we can manufacture wire wound resistors up to 1200 watts and custom resistor bank assemblies into the kilowatts. The basic design and technology behind wire wound resistors has not changed greatly over the last 70 years and this is testament to the reliability of their construction. Our tubular power resistors offer local manufacturers many benefits when a high power resistor is required that is of quality construction and available on very short lead time. These benefits […]

December 28th, 2017|Power Resistor, resistor manufacturer, resistor quality, resistor samples, Wire Wound Resistors|
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October 2017 – Resistor Manufacturing Applications

Having manufactured wire wound resistors for well over 50 years there are very few applications that we have not come across. Current sensing resistors are often required in applications from motor speed control, electric motor overload sensing circuits and the likes. With the increased uptake of solar power in Australia in recent years, both off grid and grid connected there have been a number of local manufacturers (particularly in South Australia), involved in the manufacture of solar inverters ranging from 50 watts up to several kilowatts. One of the requirements of switch mode solar inverters is the need for a […]

October 18th, 2017|current sense resistor, solar power|
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Wire Wound Resistor and Power Resistor Manufacturing Update – July 2017

13 July 2017

Current manufacturing lead times on our range of power resistors and wirewound resistors are currently running at 1 to 2 weeks, however for urgent orders please contact us and we can generally expedite delivery if required.

For reasonable quantities we can supply aluminium housed (metal clad) resistors in the following wattages:

5 watts
10 watts
25 watts
50 watts
80 watts
100 watts
250 watts

These resistors feature compact size for their wattage and are mechanically robust and offer high precision. The are available in a non inductive winding as an option.

Resistor Samples

We can provide samples of resistors for engineering evaluation and can typically supply samples with […]

July 13th, 2017|manufacturing lead times july 2017, Power Resistor, resistor samples, Wire Wound Resistors|
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Electricians Application For Power Wire Wound Resistors

Our range of wire wound resistors have been used in thousands of applications for over 50 years in Australia. An inner west Sydney electrician has used our metal clad resistors in an interesting application recently. The application involved using a 0.01 ohm, 50 watt power resistor in a current sensing application on an industrial sized electric motor driven roller door. The door was driven by a 1.5 kilowatt a.c. electric motor. The application for the power resistor was to detect the current drawn by the motor and detect current overload conditions that could be experienced when the roller door stalled, […]

July 5th, 2016|Applications, metal clad resistors, Power Resistor|
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Power Resistors

23 May 2016. By definition, power resistors are designed to dissipate high power ratings (current times voltage across the resistor) at a nominated electrical resistance. This is often necessary when working with electrical circuits where significant voltage and / or electrical current are present. Ohms Law dictates that the power dissipated in a power resistor can be calculated as:

Power = Current squared x Electrical resistance or

Power – Current x Voltage dropped across the resistor

These are fundamental ways to determine the correct wattage of the power resistor required for a particular electrical application or circuit. The specification for power resistors not only […]

May 23rd, 2016|Power Resistor|
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