Contattore,interruttore automatico,inverter solare,contatore elettrico,batterie solari
Schneider EOCRPFZ-H1DZ7W is a high-performance flush-mounted intelligent motor protector integrating multiple protection functions. Presenta un ampio intervallo di corrente e un'alimentazione di tensione universale, compatibile con vari motori industriali. 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.
- Definizione del codice modello
| Segmento | Codice | Descrizione |
| Serie di prodotti | EOCRPFZ | Electronic Over Current Relay, Panel Flush Mount Type |
| Tipo di montaggio | H | Combined type, matched with 3 current transformers |
| Valutazione attuale | 1 | Direct measurement: 0.5~60A |
| 5-turn mode: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Configurazione delle funzioni | D | Protezione di base + 1-channel 4-20mA analog output |
| Valutazione della tensione | Z7 | Ampia alimentazione di tensione: 85~250VAC/DC, 50/60Hz |
| Additional Function | W | Standard version with fault record, LED display and reset function |
- Parametri tecnici fondamentali
| Categoria | Specifica | Remark |
| Funzioni di protezione | Sovracorrente, undercurrent, perdita di fase, rotore bloccato, rotazione inversa, current unbalance, stallo, grounding, perdita, cortocircuito, pre-alarm | Selectable definite time, inverse time and overheating inverse time characteristics |
| Intervallo corrente | Direct: 0.5~60A | Wide coverage for diverse motors |
| 5-turn: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Alimentazione elettrica | 85~250VAC/DC, 50/60Hz | Strong tolerance to voltage fluctuation |
| Output Signal | 1-channel 4-20mA current loop | For PLC and upper computer monitoring |
| Valutazione dei contatti | 1-SPST, AC250V/3A resistive load | Standard control contact |
| Modalità di visualizzazione | 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 |
| Tempo di risposta | 20SM | Fast motor protection |
| Installazione | 35mm DIN rail or panel flush mounting | Ritagliare: 44-55-66mm, Contorno: 55-66-77mm |
| Working Ambient | Temperatura: -35~85℃, Umidità: ≤95% non-condensing | Suitable for harsh industrial conditions |
| Prestazioni di isolamento | Resistenza di isolamento: ≥10MΩ@DC500V | Sicuro e affidabile |
| Withstand voltage: 2kV/50Hz for 1min between circuit and shell | ||
| Numero d'ordine | EOCRPFZ-H1DZ7W | Official Schneider part number |
- Full Model List (EOCR-PFZ Series)
| Modello | Valutazione attuale | Funzione | Alimentazione elettrica | Extra Feature |
| EOCRPFZ-H1DZ7W | 0.5~60A | Di base + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-H2DZ7W | 0.5~60A | Di base + 2×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7W | 0.5~60A | Di base + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDUH | 0.5~60A | Di base + Comunicazione | 85~250VAC/DC | Standard |
| EOCRPFZ-C-WRDBWQ | 0.5~60A | Di base + 1×4-20mA | 24VCA/CC | Wide range |
| EOCRPFZ-C-WRDBT | 0.5~60A | Di base + 1×4-20mA | 24VCA/CC | Wide range |
| EOCRPFZ-H3DBW | 0.5~60A | Di base + 3-channel output | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7WQ | 0.5~60A | Di base + 1×4-20mA | 85~250VAC/DC | Migliorato |
- Cross-brand Replacement Comparison
| Schneider EOCRPFZ-H1DZ7W | ABB | Siemens | Omron | Feature Comparison |
| Intelligent motor protector | M101-P | 3RW55 | K8DS | Schneider: 3 fault records, 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 |
| Wide voltage | 24~240VAC/DC | 24~240VAC/DC | 24~240VAC/DC | Omron: Conveniente |
- Difetti comuni & Risoluzione dei problemi
| Fenomeno di guasto | Codice | Root Cause | Soluzione |
| Protector fails to start | – | Power cut-off, abnormal voltage | 1. Controllare il cablaggio |
| 2. Measure supply voltage | |||
| 3. Verify DC polarity | |||
| Falso intervento | 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, cablaggio allentato, 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 | |||
| Errore di comunicazione | – | Cablaggio errato, mismatched baud rate | 1. Check RS485 A/B connection |
| 2. Set 9600bps, 8N1 | |||
| 3. Confirm 120惟 terminal resistor |
- Air Transport Compliance & Certificazioni
6.1 Certificazioni
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
Confezione: Standard industrial package against vibration damage
Documenti: CE certificate, manual and packing list required
Notice: Avoid contact with sharp objects to prevent shell and insulation damage
- Application Cases
Caso 1: Fan Motor Protection in Steel Plant
Applicazione: 380V 55kW frequent-start fan motor with locked rotor risk
Matching: EOCRPFZ-H1DZ7W + 200:5 three-phase CT
Collocamento: 1.2 times rated current overcurrent protection (tempo inverso); 3 times rated current locked rotor protection (0.5s delay); 3s delay phase loss protection
Outcome: 3 bearing seizure motor burnout accidents avoided, costi di manutenzione ridotti 40%
Caso 2: Chemical Pump Monitoring System
Applicazione: 45kW explosion-proof chemical pump with remote current monitoring demand
Matching: EOCRPFZ-H1DZ7W + Modbus RTU module
Collocamento: 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%
- Linee guida per la selezione
Quick Rules
- Montaggio: H=CT combined type, WR=direct measuring type
- Attuale: 1=0.5~60A, 2=0.5~100A
- Funzione: D=1-channel 4-20mA, H=2-channel, U=communication
- Voltaggio: Z7=85~250VAC/DC, C=24VAC/DC
- Versione: W=Standard, Q=Enhanced
Applicable Scenarios of EOCRPFZ-H1DZ7W
General Applications
- Sovraccarico, perdita di fase, 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
Industry Applications
Trattamento delle acque: Pompa dell'acqua, sewage pump, dosing pump, aeration fan
HVAC: Centrifugal fan, axial fan, exhaust fan, cooling tower fan
Machinery Manufacturing: Conveyor, mixer, crusher, air compressor
Petrolchimico: Process pump, stirring equipment, explosion-proof matched motor
Edificio & Metallurgia: Kiln fan, dust removal unit, conveying equipment
Edificio di distribuzione dell'energia: 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
Scenari non consigliati
- 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
