Embedded pole is to embed the conductive parts related to vacuum interrupter and circuit breaker into easily solidified solid insulating materials such as epoxy resin or thermoplastic materials, and form pole at the same time. The pole of the circuit breaker becomes an integral part.1250A embedded pole for circuit breakers has stable insulation performance. When the vacuum interrupter is embedded with epoxy resin solid material, it is far away from the influence of the external environment. Its performance will not be affected by dust, moisture, small animals, dew or dirt.
| SEP-12/630(1250)-25P2 | |||
| Main Technical Specification | |||
| Parameter name | Unit | Value | |
| 1 | Rated frequency | Hz | 50 |
| 2 | Rated Voltage | kV | 12 |
| 3 | Rated short-time（1min） power-frequency withstand voltage | kV | 48 |
| 4 | Rated lightning impulse withstand voltage（Peak） | kV | 85 |
| 5 | Rated Current | A | 630/1250 |
| 6 | Rated short-circuit breaking current | kA | 25 |
| 7 | Breakding operations of rated short circuit breaking current | Times | 30 |
| 8 | Rated short-time withstand current | kA | 25 |
| 9 | Rated duration of short-circuit | s | 4 |
| 10 | Rated peak withstand current | kA | 63 |
| 11 | Rated short-circuit making current | kA | 63 |
| ※12 | Rated breaking current of single capacitor bank | A | 400/630 |
| ※13 | Rated breaking current of back-to-back capacitor bank | A | 400 |
| 14 | Circuit resistance at lowest rated contact force | μΩ | ≤25 |
| 15 | Closing force due to bellow and atmosphere | N | 110±40 |
| 16 | Force required to hold contacts open at full stroke | N | 150±50 |
| 17 | Contacts limit erosion | mm | 3 |
| 18 | Mechanical endurance | Times | 10000 |
| 19 | Storage life | years | 20 |
| 20 | Magnitude of partial discharge（13.2kV） | pC | ≤5 |
| 21 | Rated operating sequence | O-0.3s-CO-180s-CO | |
| （Mechanical date of matching switchgear） | |||
| 1 | Clearance between open contacts | mm | 9±1 |
| 2 | Over-travel | mm | 4±1 |
| 3 | Average opening speed (0～75% contact gap) | m/s | 1.1±0.2 |
| 4 | Average closing speed(30% contact gap-contact close position) | m/s | 0.7±0.2 |
| 5 | Rated added external contact final force | N | 2400±200 |
| 6 | Contact bouncing duration at closing operation | ms | ≤2 |
| 7 | Closing and Opening non-simultaneity of three-phase contacts | ms | ≤1 |
| 8 | Maximum Rebound during opening | mm | ≤2 |
| Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB1984-2014 | |||
| ※Rated characteristics to be given on request | |||
1250A Embedded Pole For Circuit Breakers features:
High dielectric strength without any additional external precautions;
Best protect the vacuum interrupter from moisture, dust and external damage;
Applicable to all possible climatic conditions and site altitude;
Absolutely reliable and long service life;
Easy to install on the circuit breaker;
The highest quality standards;
Maintenance free;
Effectively improve the dielectric strength without using greenhouse gases
More reliable, low noise, small size, stronger structure, convenient installation, more environmental protection and maintenance free.
EP series embedded pole is an essential component of medium and high voltage circuit breaker. With vacuum as the medium, it can respond to arc extinguishing in time when the high-voltage circuit is cut off. It can be applied to indoor and outdoor vacuum circuit breakers, medium voltage switchgear and other power transmission and distribution systems. The current of vacuum interrupter can be 400A, 630A, 1250A, 2000a, 2500A, 3150A, or even 4000A. It can be applied to the rated voltage of 12kV, 24kV or 36kV.1250A Embedded Pole For Circuit Breakers is a good choice
1250A Embedded Pole For Circuit Breakers: CE, CCC, CQC, IP68, ISO9001-2015
Realize zero defect of products and wholeheartedly provide customers with high-quality products with stable quality, reliable performance and high added value.
1. Your inquiry will be replied within 24 hours.
2. We offer you professional service in fluent English.
3. Keep the mass production as the sample in high quality
4. Freight forwarder: faster, safer, and convenient.
5. Quality: we have QC on each process,provide high quality products.
Any problem or needed please feel free let us know, we are glad to service for you
We are factory, we can provide competitive price. And all the products will be shipped after quality inspection. Usually we quote within 24 hours after we get your inquiry.
Q1: Are you a trading company or factory?
A1:We are factory with more than 10 years experience in this field.
Q2: how about the quality control in your factory?
A2: all products will be 100% inspected before shipment.
Q3: When can I get the price?
A3: Usually we will quote within 24 hours after receiving your inquiry.
Q4: What is the acceptable payment term?
A4: Credit Card, West Union, Paypal or T/T.
Q5: How could I get a sample?
A5: if you can’t buy our product in your local area, we can send a sample to you. Sample will be charged by retail price, and plus all related shipping costs. Express delivery charge depends on the quantity of the samples.
