Australian Resistors – Supplier of Wire Wound Resistors and Power Resistors

Low Profile Power Resistors – Uses and Applications

The low profile FRW Series Power Resistors are a popular choice for power resistors where mounting space is limited. Benefits of this series are:

Vertical or Horizontal mounting
Stackable option
Efficient heat distribution
Lighweight
Excellent mechanical rigidity and abilioty to withstand vibration
Overall high power to space ratio

Currently the FRW series is available in the following wattages:

20W
30W
50W
65W
75W

The standard tolerance is 5% for 50 ohms and above and 10% below 50 ohms. Custom tolerances down to 1% are available on request. Full data here

May 5th, 2026|flat mount power resistors, Power Resistor|

January 2026 Update

Happy New Year and welcome back to our first blog post in 2026. We look forward to serving our customers with high quality products and prompt service in the year ahead.

Our Product Range In Summary:

Rheostats
Power Wirewound Resistors
Precision Wirewound Resistors
Flameproof Wirewound Resistors
Current Sensing Resistors
Adjustable Power Resistors
Low Profile Power Resistors
High Power 1000 Watt Power Resistors
Metal Clad Panel Mount Resistors

A product summary page can be found here

We welcome all enquiries and can be reached on 0428261110

January 6th, 2026|Applications, High Power Resistors, metal clad resistors, Power Resistor|

Current Sensing Resistors Available – FSR Series Resistors

Current sense resistors are widely used throughout the electronics and in particular the power control industry. Typical applications can include:

Motor control – both a.c. and d.c. Current sensing resistors are often used in motor control to sense for possible overload conditions. Automatic garage door openers will typically employ a current sense resistor to determine if the garage door has jammed and if this is the case the current sense resistor is employed to sense an abnormal increase in motor current and stop the motor for safety reasons.
Power Inverters and U.P.S.
Solar Chargers
Pump monitoring circuitry
24 Volt truck […]

May 2nd, 2025|current sense resistor, Power Resistor|

Metal Clad Resistors – Now Available Up To 1000 Watts

Metal clad resistors are commonly used in a wide range of applications, including:

Audio Amplifiers
Chasis Mount Applications
Motor Control
Power Supplies
Switch Mode Power Supplies
Industrial Controllers
Temperature Control
DC to DC Converters
Solar Inverters

As well as our standard GMR Series of metal clad resistors (which range in power rating from 5 watts to 250 watts), we are also able to offer a the high power SMRH metal clad resistor range. These are available from 60 watt rating up to 1000 watts. Available resistance values are up to 10k ohm up to 150 watt, 30k ohn up to 500 […]

April 4th, 2025|metal clad resistors, Power Resistor, Resistor Applications|

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Tapped Power Resistors

High Power Resistors, Power Resistor, Tapped Resistors

Tapped Power Resistors

There are many applications where it is necessary to have one or several “taps’ on a power resistor. This allows to have different resistance values available on a single wire wound resistor. Applications requiring tapped power resistors can include:

power supplies
inverters
industrial controllers
heating element switching
heating and ventillation
automotive
rail signalling
dummy loads
remote controlled doors

As an example, out tubular wire wound resistors can be supplied with taps as specified by the customer. There is a small reduction in the power rating since winding space is lost. Termination to the added taps is generally via standard ‘quick connect’ […]

March 5th, 2025|High Power Resistors, Power Resistor, Tapped Resistors|

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|

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|

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|

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|

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|