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        Major Tech MT783 | 400A AC/DC Clamp Adapter | 30mm Jaw

        The Major Tech MT783 is a 400A AC/DC clamp adapter designed for use with multimeters capable of 4000 or 6000 count millivolt measurements. With a 30mm jaw opening, it allows non-intrusive current measurements without breaking the circuit or affecting insulation. It delivers high-accuracy readings with an output of 10mV/A on the 40A range and 1mV/A on the 400A range, making it suitable for a wide range of electrical applications.

        Equipped with a non-contact voltage (NCV) detection feature, the MT783 quickly identifies live circuits within a 50V to 600V range. It operates at a frequency of 50/60Hz and runs on two AAA batteries, ensuring reliable performance. Compact and lightweight at just 173g, the adapter is easy to handle and store. Designed as an accessory for the Major Tech MT878, it enhances versatility for electricians and professionals requiring accurate AC/DC current measurement.

        Major Tech MT783 Features

        • 400A AC/DC Current Measurement – Provides precise readings without disconnecting circuits.
        • 30mm Jaw Opening – Accommodates a variety of conductor sizes.
        • Non-Contact Voltage Detection (NCV) – Identifies live circuits from 50V to 600V.
        • Compatible with Most Meters – Works with 4000 or 6000 count millivolt-compatible multimeters.
        • Compact & Lightweight – Weighs only 173g and operates on two AAA batteries.

        MT783 FAQ

        Q: Can this adapter be used with any multimeter?
        A: Yes, it is compatible with meters that support millivolt measurements, including 4000 and 6000 count models.

        Q: What is the NCV feature used for?
        A: The non-contact voltage detector allows quick identification of live circuits without direct contact.

        Q: Does this work with the Major Tech MT878?
        A: Yes, the MT783 is designed to be an accessory for the MT878 multimeter.

        (MT783)

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.

        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        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.

        How to Lodge a Warranty Claim

        To initiate a warranty claim:

        1. Return to Sparky Direct
          Ship the meter back to Sparky Direct along with:

          • A copy of your proof of purchase
          • A brief description of the issue
          • Your contact details

          Please ensure the unit is securely packaged to prevent damage in transit.

        2. Forwarded for Assessment
          Upon receiving your meter, we will forward it to Major Tech’s authorised service centre for inspection, testing, and calibration.

        Assessment Process

        Major Tech’s service lab will assess the returned unit to determine:

        • Whether the fault is due to a manufacturer’s defect (covered under warranty), or
        • If the issue is the result of user error or no fault is found.

        Outcomes

        • If approved under warranty: The product will be repaired or replaced at no cost to you.
        • If not covered under warranty: The lab may offer repair services, which will be quoted and billed directly to you by the service provider.

        Important Notes

        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.

        Please allow up to 7-14 working days for the return of your product.

        Function Range Accuracy
        Jaw Size Ø 30mm Max -
        DC Voltage 0.1A – 400A ± (2.8% + 0.5A)
        AC Voltage 0.1A – 400A ± (2.8% + 0.5A)
        NCV 50V to 600V -
        Frequency 50/60 Hz -
        Low Battery Indicator Yes -
        Batteries 2x AAA 1.5V -
        Weight 173g -
        Dimensions (LxWxH) 150mm x 58mm x 35mm -

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Major Tech
        SKU MT783
        Barcode # 6008229041648
        Package Weight 0.290kg
        Package Width 0.160m
        Package Height 0.055m
        Package Length 0.235m
        View Datasheet
        View Manual
        TYPE VALUE
        Type AC Clamp Meter
        Brand Major Tech
        Voltage (V) 50-600
        Dimensions 150 x 58 x 35mm
        Batteries 2 x AAA 1.5V
        Weight 173g
        Jaw Size 30mm
        Current 400A AC/DC
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