DHR Family

Compact and versatile transducers for high AC and DC currents

    DHR - Compact Current sensors

    The DHR product family is engineered for the measurement of DC, AC, and pulse currents, featuring nominal values ranging from 100 to 1000 A True RMS with signal conditioning.

    The range of DHR current sensors includes various output types, such as 4-20 mA, 0-5 V, or 0-10 V. Specifically, DHR C5 and DHR C10 offer a 0-5 V and 0-10 V output, while DHR C420 provides a 4-20 mA current output. 

    Irrespective of the specific model, DHR current transducers are designed to cover a broad bandwidth range, spanning from DC 20 to 6000 Hz. 

    Leveraging Hall effect sensor technology (open loop), DHR ensures dependable and precise current measurements in applications related to smart grids and automation.

    DHR – Features and benefits

    DHR current sensors

    Main characteristics

    • VFD and SCR waveforms current measurement
    • True RMS output
    • Panel mounting
    • Eliminates insertion loss
    • Insulating plastic case recognized according to UL 94-V0 

    Benefits

    • Large aperture for cable up to ⌀ 32 mm
    • High insulation between primary and secondary circuits
    • Easy installation

    Typical applications

    DHR sensors, known for their capability to measure DC, AC, and pulse currents, are frequently employed in a variety of smart grid and automation applications. Some instances of these applications include:

    • VFD Controlled Loads: VFD output indicates how the motor and attached load are operating
    • SCR Controlled Loads: Accurate measurement of phase angle fired or burst fired (time proportioned) SCRs. Current measurement gives faster response than temperature measurement
    • Switching Power Supplies and Electronic Ballasts: True RMS sensing is the most accurate way to measure power supply or ballast input power

    LEM DHR – Download & Technical Characteristic

    Product Document Primary nominal RMS voltage Secondary Nominal Signal Value Op. Temperature
    DHR 100 C10

    Datasheet

    100 A 0-10V -40 to 70° C
    DHR 100 C420

    Datasheet
    3D

    100 A 4-20mA -40 to 70° C
    DHR 200 C10 Datasheet 200 A 0-10V -40 to 70° C
    DHR 200 C420 Datasheet
    3D
    200 A 4-20mA -40 to 70° C
    DHR 200 C5 Datasheet 200 A 0-5V -40 to 70° C
    DHR 300 C10 Datasheet
    3D
    300 A 0-10V -40 to 70° C
    DHR 300 C420 Datasheet
    3D
    300 A 4-20mA -40 to 70° C
    DHR 300 C5 Datasheet 300 A 0-5V -40 to 70° C
    DHR 400 C10 Datasheet 400 A 0-10V -40 to 70° C
    DHR 400 C420 Datasheet
    3D
    500 A 4-20mA -40 to 70° C
    DHR 500 C10 Datasheet 500 A 0-10V -40 to 70° C
    DHR 500 C420 Datasheet
    3D
    500 A 4-20mA -40 to 70° C
    DHR 600 C10 Datasheet
    3D
    600 A 0-10V -40 to 70° C
    DHR 600 C420 Datasheet
    3D
    600 A 4-20mA -40 to 70° C
    DHR 600 C5 Datasheet 600 A 0-5V -40 to 70° C
    DHR 1000 C10 Datasheet 1000 A 0-10V -40 to 70° C
    DHR 1000 C420 Datasheet
    3D
    1000 A 4-20mA -40 to 70° C

    DHR Sensors – ASK FOR SAMPLES / QUOTATIONS

    Looking to receive samples or a quotation? Please click on the contact button below and provide us with the information you need on this product series. Our sales team will get back to you shortly.

    Contact Us