Yueqing lightning surge integrity sales Schneider Electric miniature circuit breakers! ! ! Tel: 15157772419 Online QQ: 3229842726 First, the circuit breaker (air switch) knowledge Introduction breakers, also known as air switch, also known as automatic switch, low-voltage circuit breakers. The principle is: when the operating current exceeds the rated current, short-circuit, loss of pressure, etc., automatically cut off the circuit. Currently, the total household switch common with knife switch with porcelain insert Insurance (which has been eliminated) or air switch (with leakage protection MCB). Currently DZ series home use air switch, a common model / specification: C16, C25, C32, C40, C63 and other specifications, where C represents the tripping current, namely the current take-off, such as take-off current of 32 C32 represents security, general 6500W heater installation to use C32, installation 7500W, 328500W food use of open space C40. (Note: The power ÷; Voltage = amps, the 6500W ÷; 220V = 29.55 & asymp; 32A) Second, the product description ◆ Manufacturer: Schneider Merlin Gerin (Schneider Electric) [Note: The current brand integration, product LOGO above Schneider is] ◆ Series: EA9 = Easy9 series ◆ Product categories: R = earth leakage circuit breaker (circuit breaker + leakage module); ◆ breaking capacity: N = 6000A ◆ Poles: 2 = 2P ◆ Tripping curve (C) : Protection normal load and distribution cable ◆ Rated current: 6A 10A 16A 20A 25A 32A 40A 50A 63A ◆ rated residual operating current: 30 = 30mA ◆ detectable residual current Type C: C = AC class three basic parameters ◆ Compliance : GB16917 / IEC61009; ◆ rated voltage: (AC V): 230/400 ◆ Rated current: (A): 6 ~ 63 ◆ Breaking Capacity: (KA): 6 ◆ Tripping characteristics: C ◆ rated residual operating current: 30mA , AC class ◆ Number of poles: 1P + N / 2/3 / 4P ◆ Mechanical life: 20,000 times ◆ Connection: 6 to 32, and the following applies to 25mm2 wire; 40 to 63, and the following applies to 35mm2 wire; ◆ obtain CCC certification Fourth, the main advantage EA9R leakage protection circuit breakers, pre-assembled leakage protection circuit breaker (earth leakage circuit breaker + annex), is the maximum to avoid the risk of misuse assembled drain attachment. It provides both overload, short circuit, leakage protection. When the action occurs leakage protection device, positive means of a red mechanical fault indication can distinguish leakage and other protection. Fifth, select the circuit breaker (air switch) Ampere calculation 1 = 735W & asymp; 750W 1.5 匹 = 1.5 ×; 750W = 1125W 2 匹 = 2 ×; 750W = 1500W 2.5 匹 = 2.5 ×; 750W = 1875 W This calculation method to Such push. (1) Example: 3 A number of air conditioner should switch to select? (220V voltage) 750W ×; 3 匹 = 2250W ×; 3 times (rush current) = 6750W ÷; 220V = 30.68A & asymp; 32A. (2) Example 5 A number of air-conditioned switch should be chosen? (380V voltage) 750W ×; 5 匹 = 3750W ×; 3 times (rush current) = 1125W ÷; 380V = 29.60 & asymp; 32A (power ÷; Voltage = amps) Note: The air switch operating at rated average life of 20,000 load times. In understanding the GFCI, air switch principle, function of the general situation in the optional distribution box for customers in the process, should be based on lighting small, socket, air conditioning, large matching principle. For flexible distribution solutions according to customer requirements and decoration personality differences, combined with the actual situation. There are numerous species distribution, the following configuration options on five common characteristics, installation considerations for your reference. Sixth, the explanation points 1. micro leak electrical leakage annex action time, there is no sense of delay, but the action is a process, and this process will take some time, IEC10091 in 5.3.8 and GB16917.1 in 5.3.8 regulations for this are clearly defined, requiring maximum operating time of less than 0.3 seconds, this product basically can do 0.06 seconds; 2. GFCI only leakage protection, earth leakage circuit breaker and short-circuit protection, overload protection and leakage protection; 3. The use of bar code management system, reliable bar code and security labels double insurance system, dual recognition, dual protection. Seven breaker (air switch) polarity and representation unipolar 220V 220V bipolar cutting FireWire FireWire and the zero line and cut off three 380V three-phase 380V three-phase line to shut off all four firing a phase zero line all cut off. Eight, the purchase of electricity should install modern home lighting circuits, power outlet circuits, air-conditioning circuit, separate the wiring, when one of the circuit (such as jack circuit) fails, the other can still supply circuit is normal. Outlet circuit leakage protection device should be installed to prevent leakage caused by household appliances, personal electric shock. 1, total household distribution box switch generally choose bipolar 32-63A miniature circuit breaker or disconnecting switch. 2, the lighting circuit is generally small circuit breaker 10-16A. 3, outlet circuit usually selected 16-20A leakage protection circuit breaker. 4, air-conditioning circuit generally choose 16-25A miniature circuit breakers. 5, the use of bipolar or 1P + N (phase + neutral) breaker, when the line short-circuit or leakage fault, immediately cut off the power supply line and the neutral line to ensure personal safety and the safety of electrical equipment. Choose above for reference only, actual household electrical power is not the same, according to the specific choice of design electrician prevail.