24kV/2000A/31.5kA Circuit Breaker Embedded Pole

Payment Terms: T/T,L/C,WU
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Basic Info.
  • Type: High Voltage 
  • Poles Number:
  • Brand Name: PURANA 
  • Rated Voltage: 24kV 
  • Rated Current: 2000A 
  • Rated Breaking Current: 31.5kA 
  • Material: Epoxy resin 
  • Type: Insulator 
  • Model No.: PEP24-2000-31.5C 
  • Place of Origin: Zhejiang  
  • Min.Order: 3 Piece/Pieces
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 3000PCS/MONTH
  • Packing:In wooden cases or cartons
  • Delivery Date: 20-30 days after receiving downpayment

PURANA insist on the best material, latest APG technology and highest standard production control, which can make sure that our embedded poles can reach the highest quality:

1. Innovative APG casting can prevent effects shock, moisture and dust on the interrupter;
2. China best vacuum interrupter manufacturer, also it can be designated by clients;
3. All Germany imported epoxy resin, it has good cracking resistance characteristic and glass transition temperature can reach 110℃;
4. Choosing the T2 cooper, shaped by the forging and pressing, then the upper and lower outgoing terminals has good inner compactness and conductivity;
5. All Germany imported glass fiber has excellent shock resistance and tensile strength make sure the best quality of embedded pole.


Embedding the vacuum interrupter in a special cast resin makes the pole parts of the circuit-breaker notably robust and at the same time protects the vacuum interrupter from impact, dust, moisture and external damage. PURANA insist on the best material, latest APG technology and highest standard production control, which can make sure that our embedded poles can reach the highest quality. Maintenance-free for life, modular in structure and extremely robust and compact in design – characteristics enabling embedded poles for vacuum circuit breakers to fulfill the highest quality standards and making them highly reliable even in adverse conditions. With their intelligent overall design, the embedded poles can easily be assembled into vacuum circuit-breakers, making them the optimum choice for apparatus manufacturers. As a further plus, embedded poles function is absolutely stable in the widest conceivable range of climatic conditions.
High dielectric strength without any further external precautions;
Optimum protection of the vacuum interrupter from moisture, dust and external damage;
Suitable for all conceivable climatic conditions and site altitudes;
Absolutely reliable with long service life;
Easy assembly on circuit-breakers;
Highest quality standard;
Efficient increase in dielectric strength without use of greenhouse gases.

Main Technical Datas:

1Rated voltage24KV
2Rated Current2000A/2500A
3Rated frequency50/60HZ
4Rated short-circuit breaking current31.5KA
5Breaking operations of rated short-circuit breaking current20 times
6Rated short-circuit making current80KA
7Rated peak withstand current80KA
8Rated short-time withstand current(4s)31.5KA
9Rated breaking current of single capacitor bank630A
10Rated breaking current of back-to-back capactior bank400A
11Short-time power-frequency withstand voltage (1min)65KV/79KV
12Lightning impulse withstand voltage (peak)125KV/145KV
13Circuit resistance at rated contact force≤25µΩ
14Mechanical endurance10000 times
15Contact closing force due to bellows and atmosphere 120±50N
16Counterforce at rated contact storke200±50N
17Contact limit erosion3mm
18Storage life20 years
19Partial discharge≤3PC
20Rated operating sequence0-0.3s-CO-180s-CO

Mechanical Datas of Vacuum Circuit Breaker:

1Rated contact stroke12±1mm
2Contact connect storke4±1mm
3Average opening speed1.3±0.2m/s
4Average closing speed0.6±0.2m/s
5Rate contact pressure3100±200N
6Contact bouncing duration at closing operation≤2ms
7Out of simultaneity of contact closing and opening ≤2ms
8Max. Overtravel≤2mm

Drawing of Embedded Pole:

Mixed-Embedded All-in Machine:

Automatic Machine of Raw Material:

Production Equipments:

Production Testers:

Testing before Ex-work:


Send message to this supplier
Ms. Sharon (Sales)
Tel: 86-574-63037416
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Contact Method
Purana Electric Co., Ltd.
No.145, Danshan North Road, Hushan Town, Cixi City, Ningbo, Zhejiang, China (Mainland) / 315300
Fax: 86-574-63022858
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