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        SUNGROW DTSU666-20 | 3 Phase Smart Energy Meter Dual Channel CT

        The Sungrow DTSU666-20 is a highly accurate 3-phase smart energy meter designed for real-time monitoring of electrical consumption. With Class 1 measurement accuracy and a dual-channel CT input, it provides precise data for solar and energy management systems. This meter supports RS485 Modbus communication for seamless integration with inverters and monitoring platforms.

        Designed for durability and efficiency, the DTSU666-20 has an overall power consumption of just 1.5W and an IP20-rated enclosure for safe indoor installations. It operates within a voltage range of 85-485V AC and supports current measurement up to 3000A when using Rogowski coils. The LCD display allows easy access to electrical parameters, making it ideal for commercial and residential energy monitoring applications.

        Key Features:

        • Class 1 measurement accuracy provides precise real-time energy monitoring.
        • Dual CT input supports split-core CTs up to 250A and Rogowski coils up to 3000A.
        • RS485 Modbus communication enables integration with inverters and energy monitoring systems.
        • Wide voltage range operates between 85-485V AC for flexible applications.
        • LCD display allows easy access to voltage, current, and power readings.
        • Low power consumption of only 1.5W for efficient operation.
        • Compact DIN-rail mounting at 72mm x 118mm x 65.5mm for easy installation.

        DTSU666-20 FAQ

        Q: What is the measurement accuracy of this energy meter?
        A: The DTSU666-20 has Class 1 accuracy for highly precise energy monitoring.

        Q: How does this meter communicate with inverters?
        A: It uses an RS485 Modbus interface for seamless integration with monitoring systems.

        Q: What current transformer (CT) options are compatible?
        A: It supports split-core CTs (100A or 250A) and Rogowski coils (up to 3000A).

        (DTSU666-20)

        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: 1 Years from installation date but no more than 2 years from manufacturing date.
        Commercial Use: 1 Years from installation date but no more than 2 years from manufacturing date.
        Warranty Method: Return to Sparky Direct

        Parameters Specifications
        Nominal voltage 230/400Vac
        Input voltage range 57.7/100Vac ... 265/460Vac
        Input current 3x(5)80A
        Grid frequency 50Hz/60Hz
        Operating temperature -30°C ... +60°C
        Relative humidity < 75%
        Dimensions (W x H x D) 72 x 65 x 100 (mm)

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

        Brand SUNGROW
        SKU DTSU666-20
        View Datasheet
        View Manual
        TYPE VALUE
        Type Energy Meter
        Brand Sungrow
        Colour White
        IP Rating IP20
        Accuracy Class 1
        Mounting Type 35mm Din-rail
        Terminal Holes Size 1 - 6mm²
        Insulation Resistance ＞ 100MΩ
        Rated Voltage (V) 240/415
        Comm Terminal Size 0.2 - 1mm²
        CT Type 100A, 250A

        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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