High Voltage FZW28-12F Type User Demarcation Load Switch (Watchdog)

FOB Reference Price:Get Latest Price
US $500-5,000 / Piece | 1 Piece/Pieces (Min. Order)
Supply Ability:
10000 Piece/Pieces per Year
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Quick Details
Place of Origin:
Beijing, China (Mainland)
Brand Name:
Model Number:
High Voltage
Poles Number:
Rated voltage:
Rated frequency:
mechanical endurance:
Rated current:
FZW28-12F Medium Voltage Outdoor Vacuum Circuit Breaker (VCB)
Main loop resistance:
≤ 500μΩ
Operating voltage:
SF6 gas rated pressure:
0 psig concentration was above 93%
Packaging & Delivery
Packaging Details
Wooden case; One suit, one case
Delivery Time
Shipped in 30 days after payment
Product Description



FZW28-12F (FFK) type user dividing vacuum load switch (referred to as the demarcation switch) used in outdoor column installed occasions, has manual and electric operation function.The switch body is introduced by Toshiba Co of Japan VSP5-12 technology, the switch is a maintenance-free load switch.Vacuum interrupter and SF6 gas on ground and interphase insulating medium. This product conforms to GB3804 AC high voltage load switch: "GBT11022" and "high voltage switchgear and controlgear standards common technical requirements". FZW28-12F type dividing vacuum load switch (FZW28-12 switch and FDR-01 controller) with fault detection function, protection and control functions and communication functions, installed in the 10KV overhead transmission line, can realize the automatic removal of single-phase grounding fault and automatic isolation of interphase short circuit fault.Mounting points for 10KV distribution line user line responsibility demarcation point, also can be applied to meet the requirements of the branch line junction.

2.Normal Service Condition


2.2.Humidity monthly:≤90%
2.3.Wind pressure:≤35m/s
2.4. Seismic level: ≤8 degree
2.5.Ambient air temperature:-45℃~40℃(It’s satisfied under condition of -40℃ in heavy cold area)
Note: When product is used under the condition out of above range, user and manufacturer shall consult to confirm.


4.Main Features and Advantages:

> Can detect the milliamperes line of zero sequence current and 25 times the alternate with short circuit current rating, and its accurate, action quick;

> The same specification products can be used in different neutral grounding operation pattern of the electric power distribution system;

> Vacuum arcing, SF6 outer insulation, built-in isolation dao and arcing chamber asynchronous linkage, switch points and ability,good safety;

> Latch type spring operation mechanism, pole type manual close brake, manual or electric points off sluice, simple operation is convenient;

> Work power (voltage transformer) can built-in, complete sets of equipment maintenance overall from high;

> All parts of full seal, uv resistance, resistance to gel properties is good;

> All the air plug electrical connections, and installation are put into operation quick, convenient, accurate, reliable;

> Generally choose not to have communication mode can run according to need to configure communication module and flexible wired or wireless communication mode choice for centralized data management.

The Excellences

1. Excellent Manufacturing

1.1The Workshop and Equipment

The workshop is clean, wide and professional. There are quantities sets of world-advanced special manufacturing and testing equipments. including automatic silicon steel sheet longitudinal-transverse cutting line, automatic electromagnetic wire continuous extrusion unit and alrge kerosene vapor phase drying system.

1.2 The Technical Engineers

The company has invited experts an dengineering technicians from large and midium-sized transformer factories as its managerial an dtechnical personnel. All production and manufacture procedures are under strict control.

2. Excellent Quality

2.1 The Advanced Technology

With Sillcon Gra Phics Indk work station and a complete set of specialized design soft ware introduced from USA, all design procedures of the product like temperature rise, field-strength computation are made by computers.

---- 1200kv lightening pulse generator

2.2 The Automatic Monitering System

The company is always persuiting for the principle of "development by technology and creating famous brand by quality".

Circuit Breaker  microcomputer automatic test monitering systems.                                                                                         -----

2.3 The Certificates

The company conducts all-course management in acccordance to ISO9001 quality system and have obtained registration certificates .

3. Excellent Services

3.1 Customer Supreme

We firmly believe that good service is the extention of the products. We always treat our clients with passion and patience. "Quality first, customer supreme“ is our principle that we will follow on forever.

3.2 We provide you free fee for technical consultation and instruction.

3.3 We give you 24-hour quick response.

3.4 We can arrange experienced technicians to help you install the equipments and train your staff on site.

Previous Cases

We have been worked in electric industry for nearly 20 years.Our products are sold to South America, North America, South-east Asia and Africa, and we have won lots of cooperations and recognitions for our best price and top quality! Meanwhile we have built a long cooperative relationship with the clients from all over the world!

Our Company

Beijing Daelim Green EP Tech Co., Ltd. 

LOCATED IN: Beijing of China
SPECIALIZED IN: Electrical equipment
PRODUCTION MAINLY: Power transformer, current transformer, potential transformer, vacuum & SF6 circuit breaker, load break switch, disconnector, switchgear panel, power plant, transmission line equipment.
PRODUCTS ARE SOLD TO: Southeast Asia, the Middle East, Europe, Africa, North America and South America.

More information please search for http://bjdaelim.en.alibaba.com

Sales Records
Packing & Delivery

The circuit breakers are prepared and waiting for packaging.

One suit, one case. The circuit breaker is packed in a hard wooden case.

The circuit breaker on the truck is to the way of delivery port.

The circuit breaker is transfered onto a ship.

The circuit breaker is on a cargo to your country.

Raiway transportation.( You can choose the transportation way you want.)


Q: How long is your delivery time?
A: Generally it is 60 days if the goods are in stock. or it is 80 days if the goods are not in stock, it is according to quantity.

Q: Which market do you already sell? 

A: We already ship to Europ, Middle East, South America, Asia, Afria etc. 

Q: What is the standard of package?
A: Export standard package or special package according to customer requirement

Q: What is your terms of payment ?
A: Payment<=10000USD, 100% in advance. Payment>=10000USD, 30% T/T in advance ,balance before shippment.

Q:Why choice  Daelim?
A:After compare quality,delivery and price you will find out answer

If you have another question, pls feel free to contact us as below:

Trade Manager: Zoe
Whatsapp: 86-13261710235