ChinaCircuitBreakerFactory Rcbo circuit breaker( MK7L-40 Residual Current Circuit Breaker With Overcurrent Protection) General RCBO circuit breaker is applicable to electric circuits with rated voltage 230VAC, frequency 50/60Hz and rated current up to 40Amp. The RCBO provides indirect protection to the operator s body under such situation that the exposed live parts should be connected to a proper earth pole, RCBO also provides overcurrent protection to circuits in household,commercial and other similar installations. Moreover, it prevents potential fire danger caused by earth faullt current in case overcurrent protection device fails. Special tips: 1. RCBO circuit breaker with rated sensitivity up to 30mA could be used as supplementary protecting device in case other protecting device fails its protection against electric shock. 2. RCBO breaker designed for householf installation and other similar application,is for non-professional operation,and no maintenance is required. 3. RCBO breaker provides no protection against electric shock ersulted from direct contacts of both protected lines,or leakage current between these two lines. 4. Particular devices such as surge protective devices,surge arrester etc are recommended to install at upstream line to RCBO as precaution against potential against potential surge voltage and current occuring at its power input side. 5. Satisfying conditions and applications as mentioned above,RCCB with ON-OFF indicating device is considered suitable for isolation function. 6. RCBO overcurrent protection value is fixed and is not subject to further adjustment. Functions Switching and isolation function Protetion against overload and short-circuit currents Protection against the effects of sinusoidal alternating earth fault currents Protection against indirect contacts and additional protection against fire hazard caused by insulation faults Used in residential building Technical specifications Standard:IEC61009-1 Approvals:CB,CE,VDE(applying) Type(wave form of the earth leakage sensed):AC,A Rated current In(A):6,10,16,20,25,32,40 Number of poles:1P+N Rated voltage Ue(AC):230V Rated insulation voltage(AC):500V Rated frequency(Hz):50/60 Rated residual currents I n(mA):30,100,300 Rated breaking capacity acc.to IEC 61009 ultimate Icn(KA):6 Rated impulse withstand voltage(1.2/50)Uimp(kV):8 Dielectric test voltage at ind.freq.for 1 min.(kV):2.5 Surge current resistance(wave 8/20)(A):3000 Tripping characteristic:B,C Characteristic curve B(In):3-5 Characteristic curve C(In):5-10 Electrical life(0-C):4000 Mechanical life(0-C):10000 Degree of protection:IP40(top),IP20(termina),with connected conductors Mounting position:any Conductor cross-sections Terminal could use for busbar connection thickness(mm):0.8-2, Wiring(mm^2):1-25 Terminals Terminal tightening torque(N.m):2.5-3 The relatative humidity is max95% when ambient temperature(鈩冿級锛?5 Storage temperature(鈩冿級锛?40-+70 Altitude Max.(meters):2000ChinaCircuitBreakerFactory website:http://www.ilead-times.com/circuit-breaker/