접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
| 모델 세그먼트 | 의미 | 자세한 설명 |
| UA | 시리즈 코드 | Special capacitor switching contactor 시리즈, designed exclusively for reactive power compensation capacitor switching |
| 16 | 정격전류 | 16에이 (AC-6b, 400V capacitor load), corresponding to approx. 12.5kVar compensation capacity |
| 30 | 주요 접점 구성 | 3-pole all normally open (아니요) 주요 연락처, suitable for 3-phase capacitor banks |
| 10 | 보조 접점 구성 | 1 평상시 열림 (아니요) + 0 평상시 닫힘 (NC) 보조 접점, used for control circuit signal feedback |
| RA | 특징 | 내장형 댐핑 저항기 (Resistor-Assisted), suppresses capacitor switching inrush current; no additional reactor required |
- 핵심 기술 사양
| 매개변수 카테고리 | 기술 데이터 | 비고 |
| 기본 매개변수 | ||
| 상표 | 씨줄 | 제품ID: 1SBL181024R8010 (220-230다섯) / 1SBL181024R8510 (380-400다섯) |
| 유형 | 3-pole capacitor switching contactor | Block type design, IEC를 준수 60947-4-1 |
| 정격 작동 전압 | 690뷔와 (50/60헤르츠) | Maximum working voltage |
| 주 회로 매개변수 | ||
| 정격전류 (AC-6b) | 16A @ 400V | Special rating for capacitor loads; inrush current withstand >100×에서 |
| 정격 단시간 전류 | 140에이 (0.1에스) / 100에이 (1에스) | Low-voltage system short-circuit withstand capability |
| 전기적 내구성 | 250,000 운영 (우에<500다섯) / 100,000 운영 (500V≤Ue≤690V) | Mechanical life for capacitor switching cycles |
| 제어 회로 매개변수 | ||
| 코일 전압 | 기준: 220-230V/380-400V (50헤르츠); 230-240V/400-415V (60헤르츠) | Custom voltage levels available |
| 코일 전력 소비 | 찾다: 대략. 180버지니아; 보유: 대략. 22버지니아 | AC laminated magnetic circuit design |
| Control Circuit Protection | Recommended 10A gG fuse | Standard protection for auxiliary circuits |
| 물리적 & 환경 매개변수 | ||
| 장착 유형 | 35mm DIN 레일 장착 | Self-locking structure, no screws required |
| 전체 치수 | W44mm × H90mm × D74mm | 표준 모듈형 디자인 |
| 보호 등급 | IP20 (코일 & 보조 터미널) | IEC를 준수 60529 |
| 작동 온도 | -25°C ~ +60°C | Suitable for industrial environment range |
| 터미널 유형 | 나사 터미널, main circuit compatible with 1/2×18-10 AWG wires | 토크: 9 in·lb (main/auxiliary/control circuit) |
- Structural & 기능적 특징
3.1 핵심 구조
Built-in Damping Resistor Module: 3 independent resistors connected in series to the main circuit, realizing capacitor pre-charging and limiting switching peak current to a safe level.
Special Contact Design: Main contacts adopt anti-welding alloy material to enhance arc erosion resistance and withstand frequent inrush current impact.
Mechanical Interlock Mechanism: Ensures resistors close before main contacts and open after main contacts, completing a full current-limiting protection cycle.
Modular Accessory System: Supports expansion with auxiliary contacts, surge suppressors and other accessories.
3.2 Key Functions
Inrush Current Suppression: Built-in resistors reduce switching inrush current from 100×In to about 10×In, greatly lowering contact ablation risk.
Reactor-Free Design: RA series with inherent current limiting; no need for external series reactors, saving installation space and cost.
안전한 작동: Capacitor bank must discharge to ≤50V before re-energization to prevent secondary inrush current caused by residual charge.
Signal Feedback: 1NO auxiliary contact for status indication and interlock control.
- Optional Accessories List
| 액세서리 유형 | 모델 예 | 기능 설명 |
| 보조 접점 블록 | UA-01 / UA-10 | Add 1NC or 1NO auxiliary contact to expand control circuit functions |
| 서지 억제기 | RC1-230 / RC1-400 | Absorbs back EMF during coil breaking to protect control circuits |
| 기계적 인터록 | 2900000 | Interlocks two contactors to prevent reverse connection of capacitor banks |
| 장착 브래킷 | Compatible with 35mm DIN rail | Improves mounting stability for vibration-prone environments |
- 브랜드 간 동등 & 교체 목록
| 상표 | 동등한 모델 | 주요 차이점 | 응용 시나리오 |
| 슈나이더 | LC1DK1610 | Also with built-in current-limiting resistor, 16A등급, 1보조 접점 없음 | Direct replacement with ABB in reactive power compensation cabinets |
| 지멘스 | 3RT2016-1BB41 | Special capacitor type with built-in resistor, 16에이, 1아니요, 400V 시스템에 적합 | 산업 자동화 시스템; check mounting dimension differences |
| 씨줄 | UA16-30-10 (Non-RA) | No built-in resistor; requires external reactor, 저렴한 비용 | Light-load applications with small inrush current or systems with existing reactors |
| 이튼 | DILM17-10C | Capacitor contactor, 17에이, 1아니요, built-in current-limiting circuit | Replacement for 16A class with higher margin |
- 선택 지침 & 대체 솔루션
6.1 주요 선택 매개변수
Capacitor Capacity: UA16-30-10RA suitable for 3-phase capacitor banks ≤12.5kVar@400V / ≤20kVar@600V.
코일 전압: Must match control supply voltage; common 220V/380V to avoid coil burnout.
설치: Confirm 35mm standard DIN rail; special bracket required for non-standard rails.
환경 조건: Derate for high temperature (>40℃) with derating factor 0.8~0.9.
6.2 권장되는 대체 솔루션
| 응용 시나리오 | 권장 솔루션 | 장점 |
| Standard Reactive Compensation Cabinet | UA16-30-10RA (표준 버전) | Built-in resistor, 추가 부품이 필요하지 않습니다, 쉬운 설치 |
| High-Frequency Switching (>1200 사이클/시간) | UA16-30-10RA + 서지 억제기 | Extend contact life, reduce electromagnetic interference |
| Large-Capacity Capacitor Bank (>12.5kVar) | UA25-30-10RA (25에이) | Fits larger capacity with consistent protection level |
| Budget-Limited Retrofit Project | UA16-30-10 + External Reactor | 비용 절감, requires extra installation space |
6.3 설치 & 유지보수 노트
- 설치 전: Ensure capacitors are fully discharged to ≤50V to avoid residual charge hazards.
- 배선: Main circuit wire cross-section ≥1.5mm²; control circuit ≥0.75mm²; ensure terminals are fully tightened.
- 유지보수 주기: Inspect contact wear every 6 개월; recommend replacement after 100,000 cumulative operations.
- 문제 해결: If contactor fails to operate, first check coil voltage and control circuit fuse.
ABB UA16-30-10RA는 저전압 무효 전력 보상 시스템용으로 설계된 전용 댐핑 저항 내장 커패시터 접촉기입니다..
3개의 직렬 저항기가 스위칭 돌입 전류를 억제합니다., 접점 보호 및 서비스 수명 연장.
400V에서 12.5kVar 커패시터 뱅크에 적합한 16A AC-6b 정격, 3-극 NO 기본 접점과 1NO 보조 접점이 표준 제어 요구 사항을 완벽하게 충족합니다..
Compared with ordinary contactors, the RA series needs no external reactor and features simple installation, making it an ideal choice for industrial and building power distribution reactive compensation systems.
Complete Model List of ABB UA Series Capacitor Switching Contactors
- 모델 명명 규칙
ABB UA series capacitor contactors adopt a unified naming format for quick parameter identification:
| 모델 세그먼트 | 의미 | 사용 가능한 옵션 |
| UA | 시리즈 코드 | Special capacitor switching contactor |
| 더블 엑스 | 정격전류 (에이, AC-6b @400V) | 16, 26, 30, 50, 63, 75, 95, 110, 140 |
| 30 | 주요 접점 구성 | 3-극 아니오, designed for 3-phase capacitor banks |
| XY | 보조 접점 구성 | 00(0NO+0NC), 10(1NO+0NC), 01(0아니요+1NC), 11(1아니요+1NC) |
| RA | 특징 | Built-in damping resistor for inrush current suppression |
| -VV | 코일 전압 | 24다섯, 110다섯, 220다섯, 380V etc. (AC/DC optional) |
- Full Model List by Current Rating
2.1 16A 시리즈 (≤12.5kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA16-30-00 | UA16-30-00RA | 0NO+0NC | 220V/380V | 1SBL181022R8010(기준) / 1SBL181024R8010(RA) |
| UA16-30-10 | UA16-30-10RA | 1NO+0NC | 220V/380V | 1SBL181022R8010(기준) / 1SBL181024R8010(RA) |
| UA16-30-01 | UA16-30-01RA | 0아니요+1NC | 220V/380V | 1SBL181022R8110(기준) / 1SBL181024R8110(RA) |
| UA16-30-11 | UA16-30-11RA | 1아니요+1NC | 220V/380V | 1SBL181022R8210(기준) / 1SBL181024R8210(RA) |
2.2 26A 시리즈 (≤20kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA26-30-00 | UA26-30-00RA | 0NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA26-30-10 | UA26-30-10RA | 1NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA26-30-01 | UA26-30-01RA | 0아니요+1NC | 220V/380V | 1SBL281022R8110 / 1SBL281024R8110 |
| UA26-30-11 | UA26-30-11RA | 1아니요+1NC | 220V/380V | 1SBL281022R8210 / 1SBL281024R8210 |
2.3 30A 시리즈 (≤25kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA30-30-00 | UA30-30-00RA | 0NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA30-30-10 | UA30-30-10RA | 1NO+0NC | 220V/380V | 1SBL281022R8010 / 1SBL281024R8010 |
| UA30-30-01 | UA30-30-01RA | 0아니요+1NC | 220V/380V | 1SBL281022R8110 / 1SBL281024R8110 |
| UA30-30-11 | UA30-30-11RA | 1아니요+1NC | 220V/380V | 1SBL281022R8210 / 1SBL281024R8210 |
2.4 50A 시리즈 (≤40kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA50-30-00 | UA50-30-00RA | 0NO+0NC | 220V/380V | 1SBL341022R8010 / 1SBL341024R8010 |
| UA50-30-10 | UA50-30-10RA | 1NO+0NC | 220V/380V | 1SBL341022R8010 / 1SBL341024R8010 |
| UA50-30-01 | UA50-30-01RA | 0아니요+1NC | 220V/380V | 1SBL341022R8110 / 1SBL341024R8110 |
| UA50-30-11 | UA50-30-11RA | 1아니요+1NC | 220V/380V | 1SBL341022R8210 / 1SBL341024R8210 |
2.5 63A 시리즈 (≤50kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA63-30-00 | UA63-30-00RA | 0NO+0NC | 220V/380V | 1SBL371022R8010 / 1SBL371024R8010 |
| UA63-30-10 | UA63-30-10RA | 1NO+0NC | 220V/380V | 1SBL371022R8010 / 1SBL371024R8010 |
| UA63-30-01 | UA63-30-01RA | 0아니요+1NC | 220V/380V | 1SBL371022R8110 / 1SBL371024R8110 |
| UA63-30-11 | UA63-30-11RA | 1아니요+1NC | 220V/380V | 1SBL371022R8210 / 1SBL371024R8210 |
2.6 75A 시리즈 (≤60kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA75-30-00 | UA75-30-00RA | 0NO+0NC | 220V/380V | 1SBL381022R8010 / 1SBL381024R8010 |
| UA75-30-10 | UA75-30-10RA | 1NO+0NC | 220V/380V | 1SBL381022R8010 / 1SBL381024R8010 |
| UA75-30-01 | UA75-30-01RA | 0아니요+1NC | 220V/380V | 1SBL381022R8110 / 1SBL381024R8110 |
| UA75-30-11 | UA75-30-11RA | 1아니요+1NC | 220V/380V | 1SBL381022R8210 / 1SBL381024R8210 |
2.7 95A 시리즈 (≤75kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA95-30-00 | UA95-30-00RA | 0NO+0NC | 220V/380V | 1SBL401022R8010 / 1SBL401024R8010 |
| UA95-30-10 | UA95-30-10RA | 1NO+0NC | 220V/380V | 1SBL401022R8010 / 1SBL401024R8010 |
| UA95-30-01 | UA95-30-01RA | 0아니요+1NC | 220V/380V | 1SBL401022R8110 / 1SBL401024R8110 |
| UA95-30-11 | UA95-30-11RA | 1아니요+1NC | 220V/380V | 1SBL401022R8210 / 1SBL401024R8210 |
2.8 110A 시리즈 (≤90kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA110-30-00 | UA110-30-00RA | 0NO+0NC | 220V/380V | 1SBL411022R8010 / 1SBL411024R8010 |
| UA110-30-10 | UA110-30-10RA | 1NO+0NC | 220V/380V | 1SBL411022R8010 / 1SBL411024R8010 |
| UA110-30-01 | UA110-30-01RA | 0아니요+1NC | 220V/380V | 1SBL411022R8110 / 1SBL411024R8110 |
| UA110-30-11 | UA110-30-11RA | 1아니요+1NC | 220V/380V | 1SBL411022R8210 / 1SBL411024R8210 |
2.9 140A 시리즈 (≤110kVar @400V)
| 표준 모델 | RA Built-in Resistor Type | 보조 연락처 | Typical Coil Voltage | Product ID Example |
| UA140-30-00 | UA140-30-00RA | 0NO+0NC | 220V/380V | 1SBL421022R8010 / 1SBL421024R8010 |
| UA140-30-10 | UA140-30-10RA | 1NO+0NC | 220V/380V | 1SBL421022R8010 / 1SBL421024R8010 |
| UA140-30-01 | UA140-30-01RA | 0아니요+1NC | 220V/380V | 1SBL421022R8110 / 1SBL421024R8110 |
| UA140-30-11 | UA140-30-11RA | 1아니요+1NC | 220V/380V | 1SBL421022R8210 / 1SBL421024R8210 |
- 코일 전압 옵션 (Universal for All Series)
| Voltage Type | Common Ratings | 응용 시나리오 |
| 교류 | 24다섯, 48다섯, 110다섯, 220-230다섯, 380-400다섯, 400-415다섯 | Standard industrial control circuits |
| DC | 24다섯, 48다섯, 110다섯, 220다섯 | 방폭형, fire control or low-noise environments |
| Wide Voltage | 200-240뷔와, 380-440뷔와 | Areas with large grid voltage fluctuation |
- Key Selection Instructions
4.1 Standard Type vs RA Built-in Resistor Type
기준 (Non-RA): Requires external reactor for inrush suppression; 저렴한 비용, suitable for systems with existing reactors.
RA Built-in Resistor Type: 3 built-in damping resistors reduce switching inrush from 100×In to approx.10×In; no extra components needed for easy installation.
4.2 Auxiliary Contact Selection
00: 보조 접점 없음, for simple control loops.
10 / 01: 1 아니요 / 1 NC for status indication and interlock.
11: 1NO+1NC for complex control logic such as automatic switching systems.
4.3 Capacitor Capacity Reference (@400V)
| Contactor Rated Current | Max Compatible Capacitor | 애플리케이션 |
| 16에이 | 12.5kVar | Small commercial buildings & 주거용 |
| 30에이 | 25kVar | Medium industrial equipment & 사무실 건물 |
| 63에이 | 50kVar | Large factories & 상업 중심지 |
| 110에이 | 90kVar | 대규모 생산 라인 & regional substations |
- 부속품 & Expansion Options
| 액세서리 유형 | 모델 예 | 설명 |
| 보조 접점 블록 | UA-01 / UA-10 | Add 1NC or 1NO; 까지 확장 가능 4 보조 접점 |
| 서지 억제기 | RC1-230 / RC1-400 | Absorbs coil reverse EMF to protect control circuits |
| 기계적 인터록 | 2900000 | Interlocks two contactors to prevent capacitor bank reverse connection |
| 장착 브래킷 | 35mm DIN 레일용 | Enhance stability for vibration environments |
ABB UA series capacitor switching contactors cover full current range 16A~140A, providing standard type and RA built-in resistor type.
Flexible auxiliary contact configurations (00/10/01/11) and global compatible coil voltages are available.
The RA series effectively reduces switching inrush current, protects contacts and extends service life, making it the ideal solution for low-voltage reactive power compensation systems.
