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Learn more by watching our Major Tech MT575 | 10kV High Voltage Tester video.
The Major Tech MT575 is a digital insulation resistance tester with four test voltage ranges of 1000V, 2500V, 5000V, and 10,000V DC, rated CAT IV 600V and CAT III 1000V. It measures insulation resistance up to 2TΩ on the 10,000V range, with a short circuit current output up to 5mA for testing large plant. The MT575 also measures AC and DC voltage from 30V to 600V and stores 200 results in memory for recall on the display. A microprocessor-controlled two-line display shows the insulation reading, elapsed test time, output voltage, and output current together.
Insulation faults in HV motors, transformers, and long cable runs rarely announce themselves before a breakdown stops production. Proving the condition of that plant needs test voltages well beyond what a 1kV megohmmeter can drive through the insulation. The MT575 applies up to 10,000V DC with auto-ranging to 2TΩ, enough stress to expose weakness a lower voltage never reveals. Its 5mA short circuit current is sized for cables, transformers, motors, generators, and large wiring installations.
For contractors maintaining industrial plant, DAR and PI testing turns a one-off reading into trend data that supports condition reports and re-energisation decisions. Test time adjusts from 1 to 30 minutes, and the MT575 runs the timed sequence, freezes the result on auto hold, and saves it among 200 recallable stored results. Auto discharge bleeds the test object down after every run before the leads come off. The kit ships with test leads, crocodile clips, a carrying case, shoulder strap, and eight C cells.
The MT575 applies test voltages up to 10,000V DC and is a tool for trained personnel following safe isolation procedures; confirm the circuit is de-energised and discharged before connection. Its voltmeter function reads only from 30V to 600V, so it does not replace a general-purpose multimeter for low voltage work. The instrument warns visually and audibly when external voltage above 30V is present, and auto discharge runs after each test before leads are removed.
(MT575)
Four ranges select on the rotary switch: 1000V, 2500V, 5000V, and 10,000V DC, with auto-ranging on each. Maximum insulation resistance readings run from 200 gigohms on the 1000V range up to 2 teraohms on the 10,000V range.
Dielectric absorption ratio and polarisation index compare insulation readings taken at set intervals during a timed test. The ratios indicate moisture and contamination in windings and cables, giving a condition picture that a single spot reading cannot. Both display directly on the tester.
Yes. Up to 200 measurement results save in memory and recall onto the two-line display for review. A date and time calendar is built in, and auto hold freezes each reading when the timed test completes.
Test time adjusts from 1 minute to 30 minutes. The display shows the insulation reading, elapsed measuring time, output voltage, and output current throughout, and the circuit discharges automatically once the test finishes.
The tester warns visually and audibly when external voltage above 30V AC or DC is present, and it should only connect to circuits that are isolated and discharged. It is rated CAT IV 600V and CAT III 1000V to IEC 61010-1.
Test leads, crocodile clips, a carrying case, a shoulder strap, eight C batteries, and the instruction manual. The tester runs on the eight LR14 C cells with a CR2032 cell fitted, and low battery indication shows when replacement is due.
The MT575 carries a 2 year warranty for both domestic and commercial use, starting from the invoice date. Lodge a claim by returning the unit to Sparky Direct with proof of purchase and a fault description; it is then forwarded to Major Tech's authorised service centre for assessment. Allow 7 to 14 working days.
The Major Tech MT575 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
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How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 2 Year
Commercial Use: 2 Year
Warranty Method: Return to Sparky Direct
All Major Tech Meters sold through Sparky Direct are covered by the manufacturer’s warranty. If you believe your meter is faulty or defective, you may request an assessment under this warranty policy.
To initiate a warranty claim:
Return to Sparky Direct
Ship the meter back to Sparky Direct along with:
Please ensure the unit is securely packaged to prevent damage in transit.
Forwarded for Assessment
Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.
Major Tech’s service lab will assess the returned unit to determine:
As Major Tech’s service labs are independent providers, Sparky Direct cannot govern or guarantee turnaround times or any costs incurred for repairs outside of warranty coverage.
| Function | Range | Resolution | Accuracy |
|---|---|---|---|
| DC voltage | 30 – 600V | 1V | ± (2% + 3 Digits) |
| AC voltage | 30 – 600V | 1V | ± (2% + 3 Digits) |
| Insulation resistance 1000V | 1000V | 200GΩ | ± (5% + 5 Digits) |
| Insulation resistance 2500V | 2500V | 500GΩ | ± (5% + 5 Digits) |
| Insulation resistance 5000V | 5000V | 1TΩ | ± (5% + 5 Digits) |
| Insulation resistance 10000V | 10000V | 2TΩ | ± (5% + 5 Digits) |
| Short circuit current | 5mA | ||
| Overrange indication | Yes | ||
| Polarisation index | Yes | ||
| Dielectric absorption ratio | Yes | ||
| Auto discharge | Yes | ||
| Data logging | Yes | ||
| Data Hold | Yes | ||
| Back Light | Yes | ||
| Enclosure | Robust moulded case | ||
| Low battery indication | Yes | ||
| Power source | 8 x LR14, 1 x CR2032 | ||
| Weight | 2120g | ||
| Dimensions | 250 x 190 x 127mm | ||
| Safety Specs | IEC61010-1 CatIV 600V |
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Major Tech |
| SKU | MT575 |
| Model # | MT575 |
| TYPE | VALUE |
|---|---|
| Type | Insulation Tester |
| Brand | Major Tech |
| Height (mm) | 250 |
| Width (mm) | 190 |
| Depth (mm) | 127 |
| Power Source | 8 x LR14, 1 x CR2032 |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
For website terms and conditions https://www.sparkydirect.com.au/terms-of-use
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