1. 안전 정보
경고: Electrical shock hazard. This product must be installed and serviced by qualified personnel only. Failure to follow these instructions can result in serious injury or death.
- 회로 차단기를 설치하거나 정비하기 전에 항상 주 배전반에서 전원을 차단하십시오.
- 전기 시스템을 다룰 때는 적절한 개인 보호 장비(PPE)를 착용하세요.
- Verify that the circuit breaker rating matches the requirements of the electrical system and load.
- 과열을 방지하기 위해 모든 연결 부분이 단단하고 안전하게 되어 있는지 확인하세요.
- Do not use "used" breakers. Siemens strongly recommends against the use of "used" breakers, as their installation in a Siemens panel will void the panel's warranty.
2. 제품 오버view
The Siemens B250 is a 50-Amp Double Pole 120/240-Volt 10KAIC Bolt-in Circuit Breaker designed for use in Siemens panel boards. It provides overcurrent protection for electrical circuits.

Figure 1: Siemens B250 50-Amp Double Pole Bolt-in Breaker. This image shows the front and side profile of the circuit breaker, highlighting its compact design and terminal connections.
주요 특징:
- UL 인증을 획득하여 안전성과 규정 준수를 보장합니다.
- Panel board mounting for secure installation.
- Double pole configuration for 120/240-Volt applications.
- Type BL design.
3. 사양
| 상표 | 지멘스 |
| 모델 | B250 |
| 현재 평가 | 50 Amps |
| 권tage | 120/240 볼트 |
| 극 수 | 2 |
| 중단 등급 | 10KAIC |
| 장착 유형 | 패널 장착형(볼트 고정형) |
| 제품 크기(D x W x H) | 30"D x 8"W x 6"H (Note: These dimensions appear to be for packaging or a larger assembly, not the breaker itself. Refer to technical drawings for precise breaker dimensions.) |
| 품목 무게 | 8 온스 |
| 인증 | UL 인증 |
| 한국어: | 783643263598 |
Note: Product dimensions provided may refer to packaging. Always consult technical drawings for precise device measurements.
4. 설정 및 설치
Installation of the Siemens B250 circuit breaker requires adherence to all national and local electrical codes. This is a bolt-in type breaker, designed for specific Siemens panel boards.
설치 단계:
- 전원 차단: Ensure all power to the electrical panel is completely disconnected at the main service disconnect. Verify with a voltag전자 테스터.
- 패널 접근: Carefully remove the cover of the electrical panel to expose the bus bar and breaker slots.
- 브레이커 배치: Align the Siemens B250 breaker with the appropriate bolt-in terminals on the panel's bus bar. Ensure the breaker's lugs are properly seated over the bus bar studs.
- 보안 연결: Use the provided or appropriate fasteners to securely bolt the breaker to the bus bar. Tighten to the manufacturer's specified torque settings.
- 와이어 연결: Connect the load wires to the breaker's terminals. For a double pole breaker, connect the two hot wires to the respective terminals. Ensure wires are stripped to the correct length and terminals are tightened securely.
- 패널 재조립: 모든 연결이 안전하게 확인되면 패널 덮개를 다시 씌우십시오.
- 전원 복원: 메인 서비스 패널에 전원을 공급합니다.

그림 2: 측면 view of the Siemens B250 circuit breaker, illustrating the bolt-in mechanism and terminal design. This view helps in understanding how the breaker connects to the panel's bus bar.
설치 과정의 어떤 부분이든 확실하지 않은 경우 자격을 갖춘 전기 기술자에게 문의하세요.
5. 운영
The Siemens B250 circuit breaker is designed to automatically interrupt the flow of electricity when an overcurrent or short circuit condition occurs, protecting the circuit and connected equipment.
정상 작동:
- In the "ON" position, the breaker allows electricity to flow through the circuit.
- In the "OFF" position, the breaker manually disconnects the circuit.
차단기 트립:
When an overload or short circuit occurs, the breaker will automatically move to a tripped position, typically indicated by the handle being in the center or fully "OFF" position, depending on the design.
트립된 차단기 재설정:
- 원인 식별: Before resetting, identify and correct the cause of the trip (e.g., unplug overloaded appliances).
- 전체 OFF: Move the breaker handle firmly to the full "OFF" position. You may hear a click.
- 완전 켜짐: Then, move the handle firmly to the full "ON" position.
- If the breaker immediately trips again, do not attempt to reset it further. There is likely a persistent fault that requires professional attention.
6. 유지관리
The Siemens B250 circuit breaker is a sealed unit and contains no user-serviceable parts. Proper maintenance primarily involves ensuring the surrounding environment is suitable and periodic visual inspection.
- 시각적 검사: Periodically inspect the breaker and its connections for any signs of damage, discoloration, loose wires, or excessive heat.
- 청결: Keep the area around the electrical panel and breakers clean and free from dust, debris, and obstructions.
- 환경 조건: Ensure the operating environment is within the specified temperature and humidity ranges for electrical equipment.
Do not attempt to open or repair the circuit breaker. If damage is observed, replace the unit with a new, identical Siemens B250 breaker.
7. 문제 해결
This section addresses common issues you might encounter with your Siemens B250 circuit breaker.
브레이커 트립이 자주 발생합니다.
- 초과 적재: The circuit may be drawing more current than the breaker's rating. Reduce the load by unplugging appliances or redistributing them to other circuits.
- 단락: A direct connection between hot and neutral/ground wires can cause an immediate trip. This requires immediate investigation by a qualified electrician.
- 접지 결함: If a ground fault circuit interrupter (GFCI) is part of the circuit, it may be tripping due to current leakage to ground.
- 결함이 있는 가전제품/배선: A defective appliance or damaged wiring can cause repeated trips. Disconnect appliances one by one to isolate the fault.
Breaker Does Not Fit in Panel:
- 비호환성: Ensure the panel board is designed for Siemens Type BL bolt-in breakers. Not all bolt-in panels are universally compatible.
- 잘못된 모델: Verify that you have the correct Siemens B250 model for your specific panel.
- 물리적 장애: Check for any physical obstructions within the panel or on the bus bar that might prevent proper seating.
If troubleshooting steps do not resolve the issue, or if you suspect a serious electrical problem, contact a qualified electrician immediately. Do not attempt repairs beyond your expertise.
8. 보증 정보
Siemens provides a warranty for its products under normal use and service. For specific warranty terms and conditions, please refer to the official Siemens warranty documentation or contact Siemens customer support.
중요 보증 안내: 지멘스는 "중고" 차단기 사용을 강력히 권장하지 않습니다. 지멘스 패널에 중고 차단기를 설치하면 패널 보증이 무효화됩니다. 지멘스는 중고 차단기를 판매하지 않으며, 제3자 판매업체의 중고 차단기 판매를 승인하지 않았습니다.
9. 지원 및 연락처
For technical assistance, product inquiries, or warranty claims, please contact Siemens customer support through their official web현장 또는 지정된 지원 채널.
공식을 방문하세요 지멘스 매장 더 많은 제품 정보와 리소스를 확인하세요.





