TFZ(R)N25-12D series Indoor high voltage vacuum load switch

Short Description:


  • Port: tianjing
  • Supply Ability: TENPRO
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product characteristics

    ·True double-break design

    ·Small size and low cost

    ·Easy to operate

    ·High mechanical life

    ·Self-contained sensor and display

    ·Low environmental requirements

    ·Optional wall-mounted operation

    TFZ (R) N25-12D series

    Indoor high voltage vacuum load switch

    Outline

    TFZN25, TFZRN25 type vacuum load switch and combined electrical apparatus, used for load control and short circuit protection in three-phase AC 50Hz ring network or terminal power supply and industrial electric equipment. Load switch splits load, closed loop current, no-load transformer and cable charging current, and the combination can break any current up to the rated short current. It uses direct-action isolation break and vacuum arc extinguishing chamber linkage. And it has manual and electric functions.

    TFZN25, TFZRN25 vacuum load switch and combined electric apparatus are designed with special transmission structure. The arc extinguishing chamber is only subjected to high pressure at the moment of closing and breaking, so the size is small and the price is low.

    TFZN25, TFZRN25 vacuum load switch and combined electrical apparatus can realize one-time operation of Isolation fracture and arc extinguishing chamber fracture

    TFZN25, TFZRN25 vacuum load switch and combined electrical apparatus have high temperature resistance, strong insulation and flame retardant transparent glass cover between static contact and dynamic conductive simple, which effectively ensure the safe operation and personal safety of the equipment. The load switch and the grounding switch are provided with a reliable mechanical interlock, which ensures safe and convenient maintenance.

    Characteristic

    This switch has a real double fracture design. Compared with ZFN21 and other vacuum series switches, the overall installation has the features of simple design, convenient installation, simple and efficient debugging, small size, low cost, etc. It avoids the characteristics of numerous accessories, complicated lock installation and difficult debugging of other types of switches, and has great cost performance advantages. The switch can be equipped with a sensor and a display, which can save considerable materials and manufacturing costs for a large number of users, such as a complete set of companies, and has great market value.

    The switch, with sensors and display series of products, is used in cable branch box, and can effectively save space, greatly reduce the volume of outdoor boxes. The production cost is greatly reduced.

    Main technical parameters

    Serial No.

    Item

    Unit

    Parameter

    TFZN25-12D/T630-20

    TFZRN25-12D/T200-31.5

    1

    rated voltage

    KV

    12

    2

    rated frequency

    Hz

    50

    3

    rated current

    A

    630

    200

    4

    rated insulation level

    1min power frequency withstand voltage

    KV

    Arc-extinguishing chamber fracture 30; ground, interphase 42; isolated fracture 48

    lightning shock withstand voltage

    ground, interphase 75; isolated fracture 85

    5

    rated dynamic stable current (peak)

    KA

    50

    -

    6

    4s thermal stable current

    KA

    20

    -

    7

    rated active load current

    A

    630

    -

    8

    rated closed-loop current

    A

    630

    -

    9

    rated cable charging and breaking current

    A

    10

    -

    10

    breaking off capacity of no load transformer

    KVA

    1250

    -

    11

    rated short-circuit breaking current

    KA

    -

    31.5

    12

    rated transfer current, rated transfer current

    A

    -

    3150

    13

    Fuse type

     

    -

    SDLAJ-12 SFLAJ-12

    14

    impactor output energy

    J

    -

    2-5 (medium)

    15

    rated short-circuit closing current

    KA

     

    50

    16

    earthing switch rated dynamic stable current

    KA

     

    50

    17

    2s thermal stable current of earthing switch

    KA

     

    20

    18

    auxiliary circuit rated voltage

    V

     

    ≌220、100

    19

    mechanical life

    times

     

    10000


  • Previous:
  • Next:

  • Send your message to us:

    INQUIRY NOW
    • * CAPTCHA: Please select the Cup

    Related Products

    WhatsApp Online Chat !