접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
Schneider EOCRPFZ-H1DZ7W is a high-performance flush-mounted intelligent motor protector integrating multiple protection functions. It features wide current range and universal voltage supply, compatible with various industrial motors. Equipped with millisecond-level response, fault recording function and 4-20mA analog output, it serves as an ideal solution for motor protection in industrial automation systems. Proper parameter configuration effectively extends motor service life, reduces equipment failure rate and boosts production efficiency.
- 모델 코드 정의
| 분절 | 암호 | 설명 |
| 제품 시리즈 | EOCRPFZ | Electronic Over Current Relay, Panel Flush Mount Type |
| 장착 유형 | 시간 | Combined type, matched with 3 현재 변압기 |
| 현재 등급 | 1 | Direct measurement: 0.5~60A |
| 5-turn mode: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Function Configuration | 디 | 기본 보호 + 1-channel 4-20mA analog output |
| 전압 정격 | Z7 | 넓은 전압 공급: 85~250VAC/DC, 50/60헤르츠 |
| 추가 기능 | 여 | Standard version with fault record, LED display and reset function |
- 핵심 기술 매개변수
| 범주 | 사양 | 주목 |
| 보호 기능 | 과전류, undercurrent, 위상 손실, 잠긴 로터, reverse rotation, 현재 불균형, stall, grounding, 누출, 단락, pre-alarm | Selectable definite time, inverse time and overheating inverse time characteristics |
| 현재 범위 | Direct: 0.5~60A | Wide coverage for diverse motors |
| 5-turn: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| 전원공급장치 | 85~250VAC/DC, 50/60헤르츠 | Strong tolerance to voltage fluctuation |
| 출력 신호 | 1-channel 4-20mA current loop | For PLC and upper computer monitoring |
| 접촉 등급 | 1-SPST, AC250V/3A resistive load | Standard control contact |
| 디스플레이 모드 | LCD screen, automatic 5-second cyclic display of three-phase current and leakage current | Manual display switching available |
| Fault Record | Records latest 3 fault causes and current values, data retained after power off | Convenient fault analysis |
| 응답 시간 | 20ms | Fast motor protection |
| 설치 | 35mm DIN rail or panel flush mounting | 차단: 44-55-66mm, Outline: 55-66-77mm |
| Working Ambient | 온도: -35~85℃, 습기: ≤95% non-condensing | Suitable for harsh industrial conditions |
| 단열 성능 | 절연저항: ≥10MΩ@DC500V | 안전하고 믿을 수 있는 |
| Withstand voltage: 2kV/50Hz for 1min between circuit and shell | ||
| 주문 번호 | EOCRPFZ-H1DZ7W | Official Schneider part number |
- 전체 모델 목록 (EOCR-PFZ Series)
| 모델 | 현재 등급 | 기능 | 전원공급장치 | Extra Feature |
| EOCRPFZ-H1DZ7W | 0.5~60A | 기초적인 + 1×4-20mA | 85~250VAC/DC | 기준 |
| EOCRPFZ-H2DZ7W | 0.5~60A | 기초적인 + 2×4-20mA | 85~250VAC/DC | 기준 |
| EOCRPFZ-WRDZ7W | 0.5~60A | 기초적인 + 1×4-20mA | 85~250VAC/DC | 기준 |
| EOCRPFZ-WRDUH | 0.5~60A | 기초적인 + 의사소통 | 85~250VAC/DC | 기준 |
| EOCRPFZ-C-WRDBWQ | 0.5~60A | 기초적인 + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-C-WRDBT | 0.5~60A | 기초적인 + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-H3DBW | 0.5~60A | 기초적인 + 3-채널 출력 | 85~250VAC/DC | 기준 |
| EOCRPFZ-WRDZ7WQ | 0.5~60A | 기초적인 + 1×4-20mA | 85~250VAC/DC | 향상된 |
- Cross-brand Replacement Comparison
| Schneider EOCRPFZ-H1DZ7W | 씨줄 | 지멘스 | 옴론 | Feature Comparison |
| Intelligent motor protector | M101-P | 3RW55 | K8DS | 슈나이더: 3 결함 기록, 20ms fast response |
| 0.5~60A | 0.1~63A | 0.1~63A | 0.1~63A | 씨줄: Superior communication performance |
| 1×4-20mA | 1×4-20mA | 1×4-20mA | 1×4-20mA | 지멘스: High PLC compatibility |
| 넓은 전압 | 24~240VAC/DC | 24~240VAC/DC | 24~240VAC/DC | 옴론: 비용 효율적 |
- 일반적인 결함 & 문제 해결
| 결함 현상 | 암호 | Root Cause | 해결책 |
| Protector fails to start | – | Power cut-off, abnormal voltage | 1. 배선을 확인하세요 |
| 2. Measure supply voltage | |||
| 3. Verify DC polarity | |||
| False tripping | OC/E1 Overcurrent | Improper CT selection, wrong mounting, load fluctuation | 1. Match CT ratio with motor |
| 2. Keep CT away from inverter | |||
| 3. Adjust protection delay | |||
| Phase loss trip | PH/E2 | Missing phase, 느슨한 배선, CT failure | 1. Check three-phase voltage |
| 2. Fasten terminals | |||
| 3. Test CT output | |||
| Leakage trip | LE/E3 | Poor line insulation, motor winding grounding | 1. Test motor insulation resistance |
| 2. Inspect cable condition | |||
| 3. Reset leakage threshold | |||
| Communication failure | – | 잘못된 배선, mismatched baud rate | 1. Check RS485 A/B connection |
| 2. Set 9600bps, 8N1 | |||
| 3. Confirm 120惟 terminal resistor |
- 항공 운송 규정 준수 & 인증
6.1 인증
CE: Compliant with EU LVD and EMC directives
UL: Meets US safety standards
CSA: Conforms to Canadian safety specifications
RoHS 규제: Lead-free eco-friendly design
6.2 Air Shipment Rules
Battery status: No built-in lithium battery or supercapacitor, classified as non-dangerous goods
포장: Standard industrial package against vibration damage
Documents: CE certificate, manual and packing list required
알아채다: Avoid contact with sharp objects to prevent shell and insulation damage
- Application Cases
사례 1: Fan Motor Protection in Steel Plant
애플리케이션: 380V 55kW frequent-start fan motor with locked rotor risk
Matching: EOCRPFZ-H1DZ7W + 200:5 three-phase CT
환경: 1.2 times rated current overcurrent protection (역시간); 3 times rated current locked rotor protection (0.5s delay); 3s delay phase loss protection
Outcome: 3 bearing seizure motor burnout accidents avoided, 유지관리 비용 절감 40%
사례 2: Chemical Pump Monitoring System
애플리케이션: 45kW explosion-proof chemical pump with remote current monitoring demand
Matching: EOCRPFZ-H1DZ7W + Modbus RTU module
환경: 4-20mA output corresponding to 0~200A for PLC acquisition; enabled fault record; 300mA leakage protection threshold
Outcome: Real-time pump monitoring, early abnormal warning, production safety improved by 50%
- 선택 지침
빠른 규칙
- 설치: H=CT combined type, WR=direct measuring type
- 현재의: 1=0.5~60A, 2=0.5~100A
- 기능: D=1-channel 4-20mA, H=2-channel, U=communication
- 전압: Z7=85~250VAC/DC, C=24VAC/DC
- 버전: W=Standard, Q=Enhanced
Applicable Scenarios of EOCRPFZ-H1DZ7W
General Applications
- 초과 적재, 위상 손실, locked rotor and leakage protection for 380V three-phase industrial asynchronous motors
- Control circuits requiring 4-20mA remote signal transmission to PLC and host computer
- Panel flush mounting and DIN rail installation inside control cabinets
- Sites with severe voltage fluctuation, 85~250V AC/DC power supply
산업 응용
수처리: 워터펌프, sewage pump, dosing pump, aeration fan
공조: Centrifugal fan, axial fan, exhaust fan, cooling tower fan
Machinery Manufacturing: Conveyor, mixer, crusher, air compressor
석유화학: Process pump, stirring equipment, explosion-proof matched motor
건물 & 야금: Kiln fan, dust removal unit, conveying equipment
건물 배전: Fire fan, water supply & drainage pump, central air conditioning motor
Power Adaptation Range
Direct measurement: 0.5~60A, fits 0.25~30kW motors
Extended by external CT: Max 3600A, applicable to high-power motors
권장되지 않는 시나리오
- Motors driven by high-frequency inverter without power frequency operation
- Precision servo and stepper motor dedicated protection circuits
- Extreme environment below -35℃ or above 85℃
- Sealed space with heavy corrosion and dense dust without protective measures
