1SM1L series of leakage circuit breaker (hereinafter referred to as circuit breaker) rated insulation voltage of 800V, for AC 50HZ, rated voltage 400V, rated current to 630A circuit for frequent conversion and the motor is not frequent use of the start. Circuit breaker with overload, short circuit, under voltage and residual current protection, to protect the line and power equipment from harm. The circuit breaker has an isolation function, the symbol indicates " "
The circuit breaker breaking high, short arc, anti-vibration; can be installed vertically (that is, vertical), can also be installed horizontally (that is, horizontal). The circuit breaker can not be poured into the line, allowing only 1,3,5 connected to the power cord, 2,4,6 then load line. The circuit breaker performs the following standards: IEC60947-1 and GB, T14048.1;
IEC 60947-2 and GB14048.2 low voltage circuit breakers and Appendix B "circuit breakers with residual current protection"
2. Model and its meaning
1. When the leakage occurs, leakage alarm module sends a signal, and asked the circuit breaker trip with I said; when the leakage occurs, leakage alarm module made a signal, but requires the circuit breaker does not trip with II said.
2. said N is not installed over the current trip parts, and the N pole is directly connected; B said N pole is not installed over current trip parts, and the N pole with the other three together, points; C said N pole installed Current trip parts, and the N pole with the other three poles together, points; D said N-pole installed over-current trip parts, and N pole directly connected.
1, according to the number of products is divided into three poles and four poles.
2, wiring is divided into: board before wiring, board wiring, plug-in wiring.
3, according to the type of over-current release is divided into: hot-electromagnetic (double) type, electromagnetic (instant) type two.
4, according to whether the circuit breaker with accessories is divided into: with accessories and no two accessories. Internal accessories: shunt release, undervoltage release, leakage alarm unit module, auxiliary contacts and alarm contacts. External accessories: rotary handle operating structure, electric operating mechanism.
4. Working environment requirements
1, the installation site elevation of 2000M below.
2, the ambient temperature is not higher than +40 ℃, not less than -5 ℃; and 24 hours average does not exceed 35 ℃.
The relative humidity of the installation site does not exceed 50% at a maximum temperature of + 40 ° C; there may be a higher relative humidity at lower temperatures, and measures should be taken for occasional condensation due to temperature changes.
3, pollution level is 3.
4, the main circuit of the installation category III, auxiliary circuit and control circuit installation category II.
5, the circuit breaker should be installed in the absence of explosion hazard and no conductive dust, not enough to corrode the metal and damage the insulation.
6, should be where there is no rain and snow invasion.
5. Main feature
1, the conventional leakage circuit breaker protection module power supply sampling for the two-phase, and this series of circuit breaker protection module power supply sampling, for the three-phase, so the lack of a phase, circuit breaker leakage protection module is still working properly.
2, field adjustable: rated residual operating current I n and residual current operating time (non-delay and delay) adjustable according to the actual situation.
3, low voltage protection: When the phase voltage is reduced to 50V, leakage protection module can still work properly.
4, with leakage alarm output function: When the equipment or line residual current reaches or exceeds the set value, with leakage alarm unit module circuit breaker output a passive contact signal, drive the corresponding alarm device.
6. Main technical performance
indicators (see Table 1)
7. Release mode and internal accessory code (see Table 2)
8. Protection characteristics
Circuit breaker protection characteristics in Table 3, Table 4, the residual current protection action time in Table 5.
1, the circuit breaker of various characteristics set by the manufacturer, the user can not be adjusted in use.
2, the rated residual operating current of the circuit breaker, the residual current action time (non-delay and delay), the user can be adjusted according to actual needs (should be carried out by professionals).
3, in the main circuit power state, the rated residual operating time for the non-delay circuit breaker, hand by the residual current action test button should be immediately tripped. On the delay of the circuit breaker, press the test button and keep the delay time value, the circuit breaker can trip.
4, circuit breaker leakage tripping, the panel on the leakage indicator button outward protruding (closing and then deducted to be pressed to reset).
5, with leakage alarm unit module circuit breaker, when the occurrence of leakage alarm, the module must be reset on the reset button, circuit breaker leakage protection module to work properly.
6, undervoltage release must be energized, the circuit breaker can then buckle and closing, otherwise it will damage the circuit breaker.