Introduction DZ158-125, MCCB DZ158-125 MCCB has a beautiful appearance compact, light weight, excellent performance, reliable, high breaking capacity, tripping quickly, rail, housing and components using high impedance Burning and impact resistant plastic, long service life, mainly used in AC 50Hz single-pole, 230V, two, three, four poles 400V; rated current 63A125A circuit for overload and short circuit protection product details DZ158-125, MCCB 1.DZ158S-100 MCCB scope DZ158S-100 molded case circuit breaker has tripped signal control function for AC 50Hz, rated working voltage up to 400V, rated current up to 100A of the line, the line carried away Breaking away from the control or automatic signal control breaking, while the line from overload and short circuit protection role, but also can be used as the line is not operating frequency conversion purposes. DZ158S-100 molded case circuit breakers are widely used in the IC card prepaid meter to control the line supporting the use of on-off. While protecting overload or short circuit and the motor can also be used as infrequent line conversion and infrequent start motor used. DZ158S-100 MCCB comply GB14048.2 voltage switchgear and control equipment, low-voltage circuit breakers standard; identical with IEC60947-2 standard. 2.DZ158S-100 molded case circuit breaker model and the meaning frame degree rated current (A) Function code indicating tripping signal control design number MCCB 3.DZ158S-100 molded case circuit breakers normal operating conditions and Installation conditions 3.1 Ambient air temperature -5 ℃ ~ + 40 ℃, 24h average does not exceed 35 ℃. 3.2 Altitude: installation site does not exceed 2000m. 3.3 atmospheric conditions at the installation site at the highest relative humidity at 40 ℃ not more than 50% at a lower temperature allows a higher relative humidity, e.g., up to 90% at 20 ℃, and taking into account temperature variations in the product condensation on and take the necessary measures. 3.4 Installation category: Ⅲ grade. 3.5 Pollution degree: 3 3.6 Mounting: The TH35-7.5 steel rail mounting 3.7 Installation conditions with shunt trip breaker should generally be mounted vertically, the inclination of all places does not exceed 5 °; handle up to the position of power ; installation should be no significant impact and vibration. 4.DZ158S-100 MCCB main parameters and technical performance 4.1 Classification 4.1.1 Poles: unipolar two lines (1P + N), three-pole four-wire (3P + N); 4.1.2 short circuit tripping characteristics : 8 ~ 12In. 4.2 4.2.1 The main technical parameters Rated operating voltage Ue (V): unipolar two lines: 230; three-pole four-wire: 400; 4.2.2 rated control supply voltage Us: AC 230V, 50Hz; 4.2.3 Rated current In ( A): 63,80,100. 4.2.4 Frame rated current Inm (A): 100; 4.2.5 Signal Control tripping time; a signal control trip delay time (t):.. 0.5s≤t <2s; b signal control off Buckle instantaneous time (t): t <0.1s; 4.2.6 rated short-circuit breaking capacity Icu (A): 6000; 4.2.7 overcurrent protection characteristics (see table) Rated Current (A) initial state test current expectations specified time Result Remarks In = 63A A In> 63A 63 80 100 Cold 1.05In t≥1h t≥2h not trip immediately after the trials conducted before 1.30In t <1h t <2h tripping current steady rise in the 5s to the provisions of value Cold 8In t≥0.2s not connected to the current cold 12In trip by closing the auxiliary switch t <0.2s trip connected to the current 4.2.8 Dielectric strength by closing the auxiliary switch: breaker can withstand 2500V, which lasted 1min power frequency pressure. 4.2.9 Mechanical Electrical Life: Electrical Life: 1500, Mechanical life: 8500 times. 5.1 The main structure and working principle 5.1.1 4.2.10 short circuit tripping characteristic curve structure (see figure) 5. DZ158S-100 Moulded Case Circuit Breaker Features: This signal is controlled by the circuit breakers and circuit breakers DZ158-125 Moulded Case release assembled. DZ158-125 MCCB main by insulated shell, operating mechanism, static and dynamic contact, delay, instantaneous release, arc chamber and other components. Signal control release mainly by the signal input port, a signal voltage detecting circuit, trip coil and other components. Between MCCB and release by putting linkage. 5.1.2 works: by using the signal input port control signal to the circuit breaker trip unit plus the control electrode voltage, i.e., signal voltage (provided by the distal end of the control line), then the circuit breaker handle to the closed position, by operating mechanism driven by the moving contacts and reliable operation of the static contact contact with the fixed contact, and picks up the line. When the line overload fault, overload current to heat the bimetal element bending, overload release action, pushing the locking mechanism is reset, enabling breaking line; when the line short-circuit fault, short-circuit current to the instantaneous release action, push lock agency reset for breaking function. When because of a need to be immediately cut off the line, you can disconnect the control voltage via a remote control system, this time after the signal voltage detection circuit to get a signal on the trip coil output voltage signal to drive the entire trip coil operation and drive at the same time The locking mechanism reset for breaking function; therefore, the product line in different state, can achieve the purpose of breaking. 5.2 Wiring: Before installing should select the appropriate wires molded case circuit breakers connected to the line, the recommended wire cross-sectional area of ??the table, and check the circuit breaker used in normal working conditions are consistent. Nominal copper wire cross-sectional area (mm * mm) Rated current In (A) 16 63 25 80 35 100 5.3 Features: 5.3.1 breaker operating mechanism with energy storage mechanism for the free trip, contact fast closing, to overcome the negative impact due to the speed of the speed of the operating handle human caused, greatly improving the life of the product; In normal operation, the contacts can only stay in the closed or open position; 5.3.2 high breaking capacity up to 6kA; 5.3 .3 trip signal control signal input port, a signal processing system and the electromagnetic release composition driving element, with the circuit breaker via the included external signal cable, you can achieve remote control signal; high signal control circuit element performance, stable, strong anti-interference, to ensure reliable operation of the product. 5.3.4 Combined with Touch protection terminals, safe; 5.3.5 housing and components are imported high-retardant, high temperature, impact resistant plastic. 5.3.6 products are small, light weight, compact, modular design; 5.3.7 unique appearance and reasonable use of the spatial layout; 5.3.8 products using rail installation, convenient and timesaving.