Chint NXBLE32-3PC32 잔류 전류 작동 회로 차단기

Chint NXBLE323PC32 is a 잔류 전류 작동 회로 차단기 과전류 보호 기능 포함 (RCBO) suitable for threephase circuits. It integrates overload, shortcircuit, 및 잔류 전류 보호 기능, and is mainly used for safety protection in terminal power distribution systems.

핵심 매개변수 및 기능

1. Rated Current and Pole Number

정격전류 (~ 안에): 32에이, applicable to circuits where the total current of threephase loads does not exceed 32A (such as small commercial equipment, 모터, 등.).

극수: 3피 (threephase threewire). It can disconnect three phase wires simultaneously, and is suitable for threephase systems without a neutral wire or scenarios that require disconnecting threephase power supplies.

2. 트리핑 특성

Curve Type C: Suitable for conventional resistive loads (such as lighting, heating equipment). It can trip quickly when the current reaches 510 정격 전류의 배, preventing circuit damage caused by overload.

3. Residual Current Protection Function

정격 잔류 작동 전류 (IΔn): 30엄마 (default value). When the residual current reaches 30mA, the circuit breaker will cut off the power supply within 0.1 초, effectively preventing electric shock and electrical fires.

잔류 전류 보호 유형: AC형. It can detect powerfrequency sinusoidal AC residual current and is suitable for common household and industrial equipment.

4. Breaking Capacity and Voltage Level

Rated ShortCircuit Breaking Capacity (중환자실): 6그만큼. It can reliably break the circuit when the shortcircuit current is as high as 6000A, protecting the circuit from severe damage.

정격전압: 400뷔와 (threephase), which conforms to the standard voltage of domestic threephase power distribution systems.

설계 및 설치

1. Structure and Dimensions

전체 치수: 폭 45mm (for 3P), depth 76.8mm, height 94.5mm. It adopts standard 35mm DIN rail mounting, saving space in the distribution box.

배선 방법: Incoming wires can be connected from both the top and bottom. It supports wires with a maximum crosssectional area of 25mm². The torque of the terminal blocks must be operated in accordance with standards (refer to the instruction manual for recommendations).

2. 환경 적응성

작동 온도: 35℃ to +70℃, adaptable to a wide range of environmental temperatures.

보호 수준: IP20 (for direct installation) or IP40 (for installation inside distribution boxes), preventing the intrusion of foreign objects.

3. 인증 및 표준

It complies with China’s CCC certification and the international IEC 610091 기준, and has passed CQC test verification, ensuring reliable quality.

응용 시나리오

ThreePhase Motor Protection: Used for equipment such as small water pumps and compressors to prevent equipment damage and safety accidents caused by overload, 단락, 및 잔류 전류.

Commercial and Industrial Power Distribution: Applied in threephase power supply systems of places like restaurants and small factories to provide comprehensive circuit protection.

Temporary Power Supply Facilities: Suitable for scenarios requiring mobile power supply such as construction sites and event venues to ensure electricity safety.

선택 및 주의사항

1. 현재 매칭

Select the rated current according to the total load current to avoid overload. If multiple devices are connected in parallel, the derating factor should be considered (예를 들어, when more than 9 devices are installed side by side, the current should be derated to 0.76In).

2. Selection of Residual Operating Current

30mA is suitable for direct contact protection (such as human electric shock). If higher sensitivity is required, a 10mA model can be considered (but it is necessary to confirm whether the load allows this).

3. 대체 모델 및 호환성

If neutral wire protection is required, a 3P+N model (such as NXBLE323P+NC32) 선택할 수 있습니다; if the load current is larger, it can be upgraded to the NXBLE63 series (with a frame current of 63A).

4. 가격 및 구매 채널

The price of a single unit is approximately 80120 인민폐.

설치 및 유지 관리

1. 설치 단계

Turn off the upperlevel power supply, clamp the circuit breaker onto the 35mm DIN rail, and connect the threephase incoming and outgoing wires according to the marks to ensure firm wiring.

Before closing the switch, test the residual current protection function: 테스트 버튼을 누르세요 (marked “T”), and the circuit breaker should trip immediately.

2. 정기점검

Operate the test button once a month to check whether the residual current protection function works normally.

Regularly clean the dust on the surface of the circuit breaker and check whether the terminal blocks are loose.

요약

Chint NXBLE323PC32 is a costeffective threephase RCBO with balanced parameter configuration, suitable for various industrial and commercial scenarios. Its 30mA residual current protection, Type C tripping characteristic, and 6kA breaking capacity can effectively ensure circuit safety. During selection and installation, reasonable configuration should be made according to the actual load requirements and the structure of the power distribution system, and electrical installation specifications should be followed.