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Description
SIWOW1 intelligent universal circuit breakers
Product General
SIWOW1 universal circuit breakers (hereinafter referred to as circuit breakers) are applicable for the distribution network of AC50HZ, with rated operation voltage of 400V, 690V, and rated operating current 6,300A and below, for distributing electric energy and protecting the circuit and power supply equipment from overload, undervoltage, short circuit, ground connection and other damages. The circuit breakers, adopting intelligent controller with precise selective protection and multi-functions, have complete protection functions and are especially suitable for power distribution network which needs to improve power supply reliability and avoid unnecessary power failure. Of which, the PT40-2H/PT40-3H intelligent controller, with communication interface, is convenient to be connected to the field bus and can realize remote functions of "remote measurement", "remote adjustment", "remote control", and "remote communication", so as to meet the requirements of automated control. To configure leakage mutual inductor and the matched intelligent controller can also realize electric leakage protection. The impulse withstand voltage of circuit breakers at an altitude of 2000m can reach 8kV (to correct of the same altitude according to the standard, 12kV at most).
The circuit breakers of 1,000A or below (rated operating current) can protect the motor from overload, short circuit , under voltage and ground fault in the network of AC50Hz and 400 V, and can use for infrequent starting of the motor under normal
Operating environment
Ambient air temperature should be not higher than +40℃, and the average temperature within 24h should be not higher than +35℃. The lower limit of ambient air temperature is -5℃.
Note: For using under ambient air temperature of higher than +40℃ or lower than -5℃, users should negotiate with the manufacturer.
The altitude of installation site should be not higher than 2,000 m.
When the maximum temperature is +40℃, the relative humidity of air should be not higher than 50%, and a higher relative humidity is allowed at a lower temperature. For instance, it can reach 90% at 20℃. Special measures should be taken to cope with the condensation due to temperature change occasionally.
The pollution degree is Level 3.
The circuit breakers are installed in the cabinet with door frame. The protection class can reach IP40.
Use class is B
The installation class of main circuit of circuit breakers, undervoltage trip coils, and the primary coil of power transformer is IV; and the installation class of the rest of the auxiliary circuits and control circuits is III.
The vertical angle of installation should be not more than 5°.
Transportation and storage condition: -25℃- +55℃, up to +70℃ in a short period of time (within 24 h).
SIWOW1 Model description

SIWOW1 Main technical data and performance index

SIWOW1 Order sepcifications

SIWOW3 Model description

SIWOW3 Main technical parameters and technological index


SIWOW3 Order sepcifications

Shenyang SIWO Electric Equipment Company was established in 1999. SIWO is a poineer of Chinese low-voltage industry, occupy higher share in Chinese market.The company specialized in electric power distribution, control appliances, terminal appliances, power electronic devices ,and other series. Above products are all independent design, develop, product and sale.
The company was located in China,Liaoning province, Shenyang Dadong area, Puyu road No.22. Its total area of 80000 square meters, registered capital of 30 million yuan, existed staff about 500 people, and had 2 subsidiaries ——SIWO electronic and SIWO mould.
The company's main products including low voltage isolating switch, isolating switch fuse , automatic transfer switch , universal type circuit breaker, moulded case circuit breaker, mini circuit breaker, intelligent electric instrument, motor protector, contactor, thermal relay, etc.
Products and services had been involved in the National Olympic Games Arena, Asian Games Arena, Shanghai World’s Expo Arena and other public projects.It can provide whole solutions and electric products for rail transportation, airport, hospital, highway, finance, petrochemical, electric power network, communication, energy, real estate and other fields.
The company’s produces were strict implemented IEC,CE, CB, national standards, through CCC comprehensive certification , has 43 patents, and won the Well-Known Trademark in China, brand-name products in Liaoning province and so on, the technical performance reach the advanced level.
The company has excellent technology team, professional laboratories, automated production lines, high-tech testing equipments, modern warehousing management , efficient service systems, the products be strictly managed from the processes of purchase, product, test and sale, ensuring the excellent quality and reliable performance.
Company has 24 offices in China, its marketing networks across the country, obtained affirmations of over 2000 designing institutes.Parts of products have exported to international markets.