ZN23-40.5 MV vacuum circuit breaker is indoor MV distribution device of three-phase AC 50Hz, rated voltage 40.5kV, can be matched with JYN35/GBC-35 type switch cabinet. Suitable for control and protection in power plant, substation and power distribution system, especially suitable for frequent operation places. The vacuum circuit breaker is handcart type, with reasonable structure, convenient maintenance, safe and reliable use.
Principle of Operation
The circuit breaker is equipped with middle sealing longitudinal magnetic field vacuum interrupter, when the dynamic, static contact of vacuum interrupter is separated charged, contact gap will produce vacuum arc and extinguished when the current over zero. Due to the special structure of contact, the contact gap will produce appropriate longitudinal magnetic field during contact arc, the arc uniformly distributed on the surface of the contact, maintaining a low arc voltage, so that less electric corrosion speed and the arc chamber with high arc media recovery strength, improve the circuit breaker breaking short-circuit current capability and life electrical.
Technical Parameter
Model Description
Overall and Mounting Dimensions(mm)
Applying Ambient Conditions
1. The environment temperature: upper limit +40ºC, lower limit -15ºC (cold area -25ºC);
2. Altitude: not more than 2000m;
3. Relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;
4. Saturated steam pressure: daily average value is not higher than 2.2×10-3Mpa,monthly average is not higher than 1.8×10-3Mpa;
5. Earthquake intensity does not exceed 8 degrees;
6. No fire, explosion, pollution, chemical corrosion and severe vibration place.
Company Profile
Xuzhou Wojifan Electrical Equipment Co., Ltd. Was established in August 2024. The address is located in Pizhou Electronics Industrial Park, Jiangsu Province. Located at the junction of Jiangsu, Shandong, Henan and Anhui provinces, the transportation is extremely convenient and the transportation conditions are unique.
Xuzhou Wojifan Electrical Equipment Co., Ltd. Mainly produces S13, S20, S22 series 10KV, 20KV, 35KV oil-immersed power transformers; SH15 amorphous alloy transformer; SCB12, SCB13, SCB14, SCB18 series 10KV, 20KV, 35KV epoxy resin cast dry type power transformers; SCBH15 amorphous alloy transformer; SGB series non-encapsulated dry power transformer, low loss power transformer such as on-load voltage regulation; Combined American type, box-type substation, etc. The technical standard strictly adopts the international GB10941-2013; GB/T6451-2015, GB/T1094.11-2007/GB/T10228-2015 standards.
Service
Packing and delivery
Our advantages
Our company has won the trust and support of our customers with its excellent quality, comprehensive service and honest cooperation. In addition to the domestic market, our products are exported to Central Europe, Eastern Europe, Southeast Asia, the Middle East, Africa, America, Australia and other regions and countries.
In line with the principle of integrity and honesty, we provide perfect services for new and old customers, so that you can get affordable products, assured equipment and thoughtful service. We provide you with professional technical solutions and services. If you have any problem, please feel free to contact us and our technicians will find a complete solution for you.
FAQ:
Q1: Can you customize my products or put my logo on your products?
A1: Yes, we offer OEM and ODM services. Please inform us formally before production.
Q2: What's your terms of payment?
A2: T/T 30%, 70% balanced paid before shipment.
Q3: Could I have prices of your products?
A3: Welcome. Please feel free to send us an inquiry here. We will reply you within 24 hours.
Q4: What's the lead time?
A4: It largely depends on order quantity. Please let us know your requirement, we will do our best to deliver the goods in time.
Audited Supplier 
ZN23-40.5 MV vacuum circuit breaker is indoor MV distribution device of three-phase AC 50Hz, rated voltage 40.5kV, can be matched with JYN35/GBC-35 type switch cabinet. Suitable for control and protection in power plant, substation and power distribution system, especially suitable for frequent operation places. The vacuum circuit breaker is handcart type, with reasonable structure, convenient maintenance, safe and reliable use.
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