Chint NXBLE63 – 2P/C40

Chint NXBLE63 – 2P/C40 is a 2 – pole (2피) miniature residual current circuit breaker. Its main parameters and functions are as follows:

핵심 매개변수

정격전류: 40에이 (“Q40” indicates that the tripping characteristic is Type C and the rated current is 40A);

극수: 2피 (cuts off both the live wire and the neutral wire simultaneously);

잔류 전류 보호: 교류형 (detects ordinary AC leakage). The residual operating current is usually 30mA (an industry conventional value, and some models support options such as 50mA/75mA);

차단 용량: 6그만큼 (can safely cut off circuits with a short – circuit current of not less than 6000A);

Applicable Voltage: 230다섯 (for single – phase circuits);

Mechanical/Electrical Life: The mechanical life is 20,000 타임스, and the electrical life is 10,000 타임스.

Main Functions

1. 잔류 전류 보호: When there is electric shock to the human body (current ≥ 30mA) or equipment leakage in the circuit, the power supply is quickly cut off within 0.1 second to prevent electric shock casualties;
2. 과부하 보호: If the circuit load is too large (current exceeds 40A), it will automatically disconnect to avoid overheating and fire of the circuit;
3. Short – Circuit Protection: When a short circuit occurs in the circuit (current increases sharply in an instant), the circuit is cut off immediately to protect electrical appliances and the circuit;
4. 절연 기능: It can be used as a switch for infrequent on – off of the circuit under normal conditions.

응용 시나리오

가정용 전기: For high – power socket circuits in kitchens, living rooms, 등. (에어컨과 같은, 전기 온수기), it replaces traditional air switches and adds residual current protection;

작은 – scale Commercial Places: For socket or lighting circuits in convenience stores and offices, meeting the electricity demand within 40A;

Decoration and Renovation: Upgrading the residual current protection of old circuits to meet the new national standard’s requirement that “socket circuits must be equipped with residual current protection”.

Installation and Use Precautions

– It should be selected according to the actual load of the circuit to avoid “a big horse pulling a small cart” 또는 “a small horse pulling a big cart”;

– Press the “test button (T key)” once a month to verify whether the residual current protection function is normal;

– When installing, the live wire (엘) 그리고 중성선 (N) must be distinguished. If the wiring is reversed, the residual current protection function may fail.