Schütz,Leistungsschalter,Solarwechselrichter,Stromzähler,Solarbatterien
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.
- Modellcode-Definition
| Segment | Code | Beschreibung |
| Produktserie | EOCRPFZ | Electronic Over Current Relay, Panel Flush Mount Type |
| Montageart | H | Combined type, matched with 3 Stromwandler |
| Aktuelle Bewertung | 1 | Direct measurement: 0.5~60A |
| 5-turn mode: 0.1~2.0A | ||
| Externe CT: 1~3600A | ||
| Function Configuration | D | Grundschutz + 1-channel 4-20mA analog output |
| Nennspannung | Z7 | Breite Spannungsversorgung: 85~250VAC/DC, 50/60Hz |
| Additional Function | W | Standard version with fault record, LED display and reset function |
- Technische Kernparameter
| Kategorie | Spezifikation | Bemerkung |
| Schutzfunktionen | Überstrom, undercurrent, Phasenverlust, blockierter Rotor, Rückwärtsdrehung, current unbalance, stall, grounding, Leckage, Kurzschluss, Voralarm | Selectable definite time, inverse time and overheating inverse time characteristics |
| Aktueller Bereich | Direct: 0.5~60A | Wide coverage for diverse motors |
| 5-turn: 0.1~2.0A | ||
| Externe CT: 1~3600A | ||
| Stromversorgung | 85~250VAC/DC, 50/60Hz | Strong tolerance to voltage fluctuation |
| Ausgangssignal | 1-channel 4-20mA current loop | For PLC and upper computer monitoring |
| Kontaktbewertung | 1-SPST, AC250V/3A resistive load | Standard control contact |
| Anzeigemodus | LCD screen, automatic 5-second cyclic display of three-phase current and leakage current | Manual display switching available |
| Fehlerprotokoll | Records latest 3 fault causes and current values, data retained after power off | Convenient fault analysis |
| Ansprechzeit | 20MS | Fast motor protection |
| Installation | 35mm DIN rail or panel flush mounting | Ausgeschnitten: 44-55-66mm, Outline: 55-66-77mm |
| Working Ambient | Temperatur: -35~85℃, Luftfeuchtigkeit: ≤95% non-condensing | Suitable for harsh industrial conditions |
| Isolationsleistung | Isolationswiderstand: ≥10MΩ@DC500V | Sicher und zuverlässig |
| Withstand voltage: 2kV/50Hz for 1min between circuit and shell | ||
| Bestellnummer | EOCRPFZ-H1DZ7W | Official Schneider part number |
- Full Model List (EOCR-PFZ Series)
| Modell | Aktuelle Bewertung | Funktion | Stromversorgung | Extra Feature |
| EOCRPFZ-H1DZ7W | 0.5~60A | Basic + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-H2DZ7W | 0.5~60A | Basic + 2×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7W | 0.5~60A | Basic + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDUH | 0.5~60A | Basic + Kommunikation | 85~250VAC/DC | Standard |
| EOCRPFZ-C-WRDBWQ | 0.5~60A | Basic + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-C-WRDBT | 0.5~60A | Basic + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-H3DBW | 0.5~60A | Basic + 3-channel output | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7WQ | 0.5~60A | Basic + 1×4-20mA | 85~250VAC/DC | Erweitert |
- Cross-brand Replacement Comparison
| Schneider EOCRPFZ-H1DZ7W | ABB | Siemens | Omron | Feature Comparison |
| Intelligent motor protector | M101-P | 3RW55 | K8DS | Schneider: 3 Störungsaufzeichnungen, 20ms fast response |
| 0.5~60A | 0.1~63A | 0.1~63A | 0.1~63A | ABB: Superior communication performance |
| 1×4-20mA | 1×4-20mA | 1×4-20mA | 1×4-20mA | Siemens: High PLC compatibility |
| Breite Spannung | 24~240VAC/DC | 24~240VAC/DC | 24~240VAC/DC | Omron: Kostengünstig |
- Häufige Fehler & Fehlerbehebung
| Fehlerphänomen | Code | Root Cause | Lösung |
| Protector fails to start | – | Power cut-off, abnormal voltage | 1. Verkabelung prüfen |
| 2. Measure supply voltage | |||
| 3. Verify DC polarity | |||
| Fehlauslösung | 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, lose Verkabelung, 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 | – | Falsche Verkabelung, mismatched baud rate | 1. Check RS485 A/B connection |
| 2. Set 9600bps, 8N1 | |||
| 3. Confirm 120惟 terminal resistor |
- Air Transport Compliance & Zertifizierungen
6.1 Zertifizierungen
CE: Compliant with EU LVD and EMC directives
UL: Meets US safety standards
CSA: Conforms to Canadian safety specifications
RoHS: Lead-free eco-friendly design
6.2 Air Shipment Rules
Battery status: No built-in lithium battery or supercapacitor, classified as non-dangerous goods
Verpackung: Standard industrial package against vibration damage
Documents: CE certificate, manual and packing list required
Notice: Avoid contact with sharp objects to prevent shell and insulation damage
- Application Cases
Fall 1: Fan Motor Protection in Steel Plant
Anwendung: 380V 55kW frequent-start fan motor with locked rotor risk
Matching: EOCRPFZ-H1DZ7W + 200:5 three-phase CT
Einstellung: 1.2 times rated current overcurrent protection (Umkehrzeit); 3 times rated current locked rotor protection (0.5s Verzögerung); 3s delay phase loss protection
Outcome: 3 bearing seizure motor burnout accidents avoided, Wartungskosten um reduziert 40%
Fall 2: Chemical Pump Monitoring System
Anwendung: 45kW explosion-proof chemical pump with remote current monitoring demand
Matching: EOCRPFZ-H1DZ7W + Modbus RTU module
Einstellung: 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%
- Auswahlrichtlinien
Schnelle Regeln
- Montage: H=CT combined type, WR=direct measuring type
- Aktuell: 1=0.5~60A, 2=0.5~100A
- Funktion: D=1-channel 4-20mA, H=2-channel, U=communication
- Stromspannung: Z7=85~250VAC/DC, C=24VAC/DC
- Version: W=Standard, Q=Enhanced
Applicable Scenarios of EOCRPFZ-H1DZ7W
General Applications
- Überlast, Phasenverlust, 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
Branchenanwendungen
Wasseraufbereitung: Wasserpumpe, sewage pump, dosing pump, aeration fan
HVAC: Centrifugal fan, axial fan, exhaust fan, cooling tower fan
Machinery Manufacturing: Förderer, mixer, crusher, air compressor
Petrochemie: Process pump, stirring equipment, explosion-proof matched motor
Gebäude & Metallurgie: Kiln fan, dust removal unit, conveying equipment
Building Power Distribution: 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
Nicht empfohlene Szenarien
- 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
