접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
This is a Schneider EZD series 400프레임 크기, 3-폴, 250정격 전류, 36kA breaking capacity molded case circuit breaker. Its standard order number is EZD400E3250K. It is applied to overload and short-circuit protection in secondary power distribution systems, featuring cost performance and installation flexibility.
- Model Segment Definition
| 모델 세그먼트 | 의미 | 설명 |
| EZD | 제품 시리즈 | Schneider EasyPact EZD molded case circuit breaker series, designed for secondary power distribution, civil buildings and electromechanical markets |
| 400 | 프레임 전류 | 400프레임 크기, maximum rated current up to 400A |
| 이자형 | 차단 용량 등급 | Class E, 36kA @ 400V AC, suitable for general industrial and civil building power distribution |
| 3피 | 극수 | 3-폴, 삼상 삼선식 시스템 |
| 250에이 | 정격전류 | Thermal-magnetic trip unit rated current 250A with fixed protection setting values |
| 케이 | 장착 유형 | 고정형 / 전면 연결 (기준); PK means plug-in type |
- Core Specification Parameter Table
| 매개변수 카테고리 | Detailed Specification | 비고 |
| 기본 매개변수 | ||
| 상표 & 모델 | Schneider EZD400E3250K | Standard order number |
| 정격전압 | 400뷔와 (맥스. 690뷔와) | 50/60헤르츠 |
| 정격 절연 전압 | 1000뷔와 | IEC를 준수 60947-2 |
| 정격전류 (~ 안에) | 250에이 | Thermal-magnetic trip TM250D |
| 극수 | 3피 | Three-phase three-wire |
| 차단 용량 (중환자실) | 36kA @ 400V AC | Class E breaking capacity |
| 보호 특성 | ||
| 트립 유닛 유형 | Thermal-Magnetic (TMD) | Long time delay for overload + 순간 단락 보호 |
| 과부하 보호 | 1.05~ 안에: No tripping continuously | IEC를 준수 60947-2 |
| 1.30~ 안에: Tripping within ≤1 hour | ||
| 6.00~ 안에: Tripping within ≤2 seconds | ||
| 단락 보호 | Instant trip at ≥10In | Protect lines and equipment from overload and short-circuit damage |
| 기계 & 설치 매개변수 | ||
| 장착 유형 | 결정된 (기준) / Plug-in optional | Upper/lower incoming line interchangeable without derating |
| 배선 방법 | 전면배선 (기준) | Rear wiring and plug-in wiring optional |
| 작동 모드 | 수동조작 (Handle) | Ergonomic design, labor-saving operation |
| Overall Dimension (폭×높이×깊이) | 140×255×110 mm | Standard dimension for 400A frame |
| 무게 | 대략. 4.5 kg | |
| 장착 위치 | Vertical / Horizontal / Side / 뒤쪽 | Performance unaffected by mounting position |
| 환경 매개변수 | ||
| 작동 온도 | -5℃ ~ +40℃ | Derate above 40℃ |
| 보관 온도 | -25℃ ~ +70℃ | |
| 보호 등급 | IP30 (본체만) | IP40 with protective cover |
| 인증 | ||
| Standard Compliance | IEC 60947-2, GB 14048.2 | 3C Certificate No.: 2020980307… |
- Accessory List (Compatible with EZD400 Series)
| Accessory Type | 모델 / 주문 번호. | 기능 설명 |
| 보조 연락처 | EZ4OF101 (Single Auxiliary) | Indicate breaker ON/OFF status (의), 1NO/1NC or 2NO/2NC |
| EZ4OF201 (Dual Auxiliary) | ||
| Alarm Contact | EZ4SD101 (Single Alarm) | Indicate breaker tripping status (SD), including fault and non-fault tripping |
| EZ4SD201 (Dual Alarm) | ||
| 션트 트립 | EZ4SHT200ACDCZ (AC220V) | Remote trip control, fire emergency trip application |
| EZ4SHT400ACZ (AC380V) | ||
| EZ4SHT048ACDCZ (DC24V) | ||
| 저전압 해제 | EZ4MN200ACZ (AC220V) | Automatic trip when voltage below set value, protect equipment from over/undervoltage damage |
| EZ4MN400ACZ (AC380V) | ||
| Extended Rotary Handle | EZ4H100 | Convenient door operation, suitable for distribution cabinet installation |
| Interphase Barrier | EZ4SP400 | Enhance interphase insulation and safety |
| Busbar | Dedicated busbar system | Suitable for multi-circuit outgoing lines, easy installation and neat layout |
| Plug-in Base | EZ4B400 | Adapt to plug-in mounting for easy maintenance and replacement |
- 대안 & 브랜드 간 비교
4.1 Schneider Internal Series Replacement
| 시리즈 | 모델 | 차단 용량 | 여행 유형 | 가격대 | 응용 시나리오 |
| EZD | EZD400E3250K | 36그만큼 | Thermal-Magnetic | 중간-낮음 | General power distribution, 비용 우선순위 |
| CVS | CVS400N3250 | 50그만큼 | Thermal-Magnetic / 전자 | 중간 | Industrial distribution, higher breaking capacity required |
| NSX | NSX400N3250 | 50그만큼 / 70그만큼 | 전자 (미세학) | 높은 | High-end distribution, precise protection and communication required |
4.2 Cross-Brand Competitor Comparison
| 상표 | 모델 | 액자 / 정격전류 | 차단 용량 | Price Ratio | 특징 |
| 친트 | NXM-400S/3300 250A | 400에이 / 250에이 | 36그만큼 | 에 대한 60% of EZD | 국내 대안, 높은 비용 성능 |
| 씨줄 | Tmax T4N250 | 400에이 / 250에이 | 50그만큼 | 에 대한 120% of EZD | Strong breaking capacity, 안정적인 성능 |
| 지멘스 | 3VT400N250 | 400에이 / 250에이 | 36그만큼 | 에 대한 110% of EZD | Compatible with Siemens system, 완벽한 통신 기능 |
| 창수 스위치 | CM3-400M/3300 250A | 400에이 / 250에이 | 36그만큼 | 에 대한 70% of EZD | High-quality domestic brand, 좋은 호환성 |
- 선택 포인트 & 대체 솔루션
5.1 Core Selection Guidelines
부하 유형 일치
Distribution Protection: EZD400E series (thermal-magnetic), 조명에 적합, socket and non-motor loads
모터 보호: Recommend EZD400M series (motor protection type with higher short-circuit trip multiple)
잔류 전류 보호: Adopt VigiEZD400E series with integrated residual current protection
Breaking Capacity Selection
36그만큼 (Class E): 일반산업 & civil buildings with low short-circuit current
50그만큼 (Class M): Industrial environments with high short-circuit current, such as near inverters and large motors
Calculation Rule: Select proper breaking capacity based on system short-circuit current calculation
Mounting Type Decision
고정형: 저렴한 비용, for circuits without frequent replacement
Plug-in Type: 유지관리 용이, for important circuits requiring quick replacement (데이터 센터, 병원)
5.2 Recommended Alternative Solutions
| 대본 | Recommended Solution | 장점 |
| Budget Limited, General Distribution | Chint NXM-400S/3300 250A | Low price, meets basic performance requirements |
| High Breaking Capacity Required (50그만큼) | Schneider CVS400N3250 | 동일 브랜드 업그레이드, installation dimension compatible, 더 높은 차단 용량 |
| Precise Protection & Communication Needed | Schneider NSX400N3250 + 미세학 2.3 | Electronic trip with adjustable parameters, support Modbus communication |
| Residual Current Protection Needed | VigiEZD400E3250K | Integrated residual current protection, save space without extra module |
| Remote Control Needed | EZD400E3250K + 션트 트립 + 보조 연락처 | Realize remote tripping and status monitoring, fit intelligent distribution system |
- Key Operation Precautions
- Derating Application: Derate rated current by 1% per 1℃ above 40℃; 로 경감하다 0.5% per 100m altitude over 1000m.
- 배선사양: Follow top-in bottom-out rule; fasten terminals to avoid overheating. 3P for three-phase three-wire; select 4P if neutral protection is needed.
- 액세서리 설치: Auxiliary/alarm contacts, shunt/undervoltage releases can be field-installed; cut off power before installation for safety.
- 유지보수 주기: Inspect every 6 months including appearance, mechanism flexibility and terminal tightness.
- 오류 처리: 넘어진 후, identify cause (overload/short-circuit), eliminate fault then close again.
Complete Model List of Schneider EZD Series Circuit Breakers
Overview: The EZD series covers 5 frame sizes (100A/160A/250A/400A/630A), 3 breaking classes (E=25kA, N=36kA, M=50kA), 2 pole types (3P/4P), 2 trip types (TMD thermal-magnetic / ETU electronic; electronic only for 630A frame), 2 mounting types (Fixed N / Plug-in PK), plus residual current type (VigiEZD) and motor protection type (엄마) variants.
- 모델 명명 규칙 (필수적인)
| 모델 세그먼트 | 의미 | Optional Value | 설명 |
| EZD | 제품 시리즈 | EZD | EasyPact EZD molded case circuit breaker series |
| 100/160/250/400/630 | 프레임 전류 | 100/160/250/400/630 | Maximum rated current capacity |
| E/N/M | 차단 용량 | 이자형(25그만큼), N(36그만큼), 중(50그만큼) | Ultimate breaking capacity @400V AC |
| 3-4 | 극수 | 3(3피), 4(4피) | 3P=3-phase 3-wire; 4P=3-phase 4-wire |
| 0XX/XX0 | 정격전류 | 15~630A | Rated current of thermal-magnetic trip unit |
| N/PK | 장착 유형 | N(결정된), PK(플러그인) | Fixed as standard; PK for plug-in |
| 엄마 | 애플리케이션 유형 | 엄마(모터 보호) | Non-MA for distribution protection |
| EL/ELA | 잔류 전류 | EL(30엄마), ELA(300엄마) | Exclusive for VigiEZD series |
- Complete Model List by Frame Size
2.1 EZD100 Frame (맥스. 100에이)
2.2 EZD160 Frame (맥스. 160에이)
2.3 EZD250 Frame (맥스. 250에이)
2.4 EZD400 Frame (맥스. 400에이)
2.5 EZD630 Frame (맥스. 630에이, with Electronic Trip)
- Residual Current Protected Type (VigiEZD Series)
- Key Selection Instructions
- Common Model Quick Reference (Distribution Protection)
- Accessory Compatibility Guide
