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location：Intelligent Power Distribution Products > Medium Voltage Ring Main Unit

Safe Series
(Partnered with ABB)

Features
The Safe series ring main unit is a fully sealed system developed by ABB, where all live components and switches are enclosed within a stainless steel casing. The entire switchgear is unaffected by external environmental conditions, ensuring operational reliability and personal safety while achieving maintenance-free operation. By selecting expandable busbars, any combination can be achieved, enabling full modularity. The expandable busbars are completely insulated and shielded, ensuring high reliability and safety.
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  • Features
  • Parameter
  • Application field

  • Voltage level

    Product features:

    1.Latest ABB ring main switch technology, augmenting product performance and reliability

    2.The integrated DTU application technology merges protection, measurement, and control functionalities

    3.The compact switchgear, merely 325mm wide, is suitable for a wider range of usage scenarios

    4.The breaking current of 12kV Safe-V circuit breaker module is up to 25kA, and the rated current of the CB in the CB modulecan reach up to 1250A


  • GB7251.1-2005，IEC60439-1，EN60439.1，

    Standards: GB72511-2005, IEC60439-1, EN604391,

    DIN_VDE0660, Part 500 BS5486, UTE63-410

    Electrical characteristics

    Rated voltage

    Rated insulation voltage

    690V / 1000V AC，3P，1500V DC

     

    Rated working voltage

    400V / 690V AC，3P，750V DC

    Rated impulse withstand voltage Uimp

    6 / 8 / 12kV

    Overvoltage level

    II / III / IV

    Pollution level

    3

    Rated working frequency

    Up to 60Hz

    Rated current

    Main bus

    Rated current Ie

    Up to 6300 A

    Rated peak withstand current Ipk

    Up to 220 kA

    Rated short-time withstand current Icw

    Up to 100 kA

     

    Power distribution bus

    Rated current Ie

    Up to 2000 A

    Rated peak withstand current Ipk

    Up to 176 kA

    Rated short-time withstand current Icw

    Up to 80 kA

    Structural features

    Size

    Cabinet and support components DIN41488

    The modulus is E = 25mm (in compliance with the DIN43660 standard)

     

    The recommended height is 2200mm

    Recommended widths for the device include 400, 600, 800, 1000, and 1200mm

    Recommended depths are 600mm, 800mm, 1000mm, and 1200mm

    Surface protection

    Frame

    Aluminium zinc coated

     

    Internal compartment partition and component installation board

    Aluminium zinc coated

    Enclosure

    Electric lacquer bright grey RAL 7035 color standard

    Protection level

    Partition form

    Compliant with IEC60529 or 00PI05004NID

    Up to IP54

     

    Internal compartment separation feature

    Up to Form 4b

    Plastic parts

    Halogen-free and self-extinguishing

    DIN VDE0304 Part 3

     

    No CFC, flame retardant

    IEC60707

  • Power grids, substations, industrial zones, transportation, real estate, telecommunications, environmental protection, municipal and technical facilities, among others.