Contactor,întrerupător de circuit,invertor solar,contor electric,baterii solare
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.
- Definiția codului modelului
| Segment | Cod | Descriere |
| Seria de produse | EOCRPFZ | Electronic Over Current Relay, Panel Flush Mount Type |
| Tip de montare | H | Combined type, matched with 3 current transformers |
| Evaluare curentă | 1 | Direct measurement: 0.5~60A |
| 5-turn mode: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Function Configuration | D | Protecție de bază + 1-channel 4-20mA analog output |
| Tensiune nominală | Z7 | Wide voltage supply: 85~250VAC/DC, 50/60Hz |
| Funcție suplimentară | W | Standard version with fault record, LED display and reset function |
- Parametrii tehnici de bază
| Categorie | Caietul de sarcini | Remarcă |
| Funcții de protecție | Supracurent, undercurrent, pierdere de fază, locked rotor, rotatie inversa, current unbalance, stand, grounding, scurgere, scurt-circuit, pre-alarm | Selectable definite time, inverse time and overheating inverse time characteristics |
| Interval de curent | Direct: 0.5~60A | Wide coverage for diverse motors |
| 5-turn: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Alimentare electrică | 85~250VAC/DC, 50/60Hz | Strong tolerance to voltage fluctuation |
| Semnal de ieșire | 1-channel 4-20mA current loop | For PLC and upper computer monitoring |
| Evaluarea contactului | 1-SPST, AC250V/3A resistive load | Standard control contact |
| Display Mode | 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 |
| Timp de răspuns | 20Domnișoară | Fast motor protection |
| Instalare | 35mm DIN rail or panel flush mounting | Elimina: 44-55-66mm, Outline: 55-66-77mm |
| Working Ambient | Temperatură: -35~85℃, Umiditate: ≤95% non-condensing | Suitable for harsh industrial conditions |
| Performanta de izolare | Insulation resistance: ≥10MΩ@DC500V | Sigur și de încredere |
| Withstand voltage: 2kV/50Hz for 1min between circuit and shell | ||
| Număr de ordine | EOCRPFZ-H1DZ7W | Official Schneider part number |
- Lista completă a modelelor (EOCR-PFZ Series)
| Model | Evaluare curentă | Funcţie | Alimentare electrică | Extra Feature |
| EOCRPFZ-H1DZ7W | 0.5~60A | De bază + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-H2DZ7W | 0.5~60A | De bază + 2×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7W | 0.5~60A | De bază + 1×4-20mA | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDUH | 0.5~60A | De bază + Comunicare | 85~250VAC/DC | Standard |
| EOCRPFZ-C-WRDBWQ | 0.5~60A | De bază + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-C-WRDBT | 0.5~60A | De bază + 1×4-20mA | 24VAC/DC | Wide range |
| EOCRPFZ-H3DBW | 0.5~60A | De bază + 3-channel output | 85~250VAC/DC | Standard |
| EOCRPFZ-WRDZ7WQ | 0.5~60A | De bază + 1×4-20mA | 85~250VAC/DC | Îmbunătățit |
- Cross-brand Replacement Comparison
| Schneider EOCRPFZ-H1DZ7W | ABB | Siemens | Omron | Feature Comparison |
| Intelligent motor protector | M101-P | 3RW55 | K8DS | Schneider: 3 înregistrări de erori, 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 |
| Tensiune largă | 24~240VAC/DC | 24~240VAC/DC | 24~240VAC/DC | Omron: Eficient din punct de vedere al costurilor |
- Defecte comune & Depanare
| Fenomen de eroare | Cod | Root Cause | Soluţie |
| Protector fails to start | – | Power cut-off, abnormal voltage | 1. Verificați cablajul |
| 2. Measure supply voltage | |||
| 3. Verify DC polarity | |||
| Deplasare falsă | 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, cabluri libere, 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 | |||
| Eșec de comunicare | – | Cablaj greșit, mismatched baud rate | 1. Check RS485 A/B connection |
| 2. Set 9600bps, 8N1 | |||
| 3. Confirm 120惟 terminal resistor |
- Air Transport Compliance & Certificari
6.1 Certificari
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
Ambalare: Standard industrial package against vibration damage
Documents: CE certificate, manual and packing list required
Observa: Avoid contact with sharp objects to prevent shell and insulation damage
- Cazuri de aplicare
Caz 1: Fan Motor Protection in Steel Plant
Aplicație: 380V 55kW frequent-start fan motor with locked rotor risk
Matching: EOCRPFZ-H1DZ7W + 200:5 three-phase CT
Setare: 1.2 times rated current overcurrent protection (timp invers); 3 times rated current locked rotor protection (0.5s delay); 3s delay phase loss protection
Outcome: 3 bearing seizure motor burnout accidents avoided, costul de întreținere redus cu 40%
Caz 2: Chemical Pump Monitoring System
Aplicație: 45kW explosion-proof chemical pump with remote current monitoring demand
Matching: EOCRPFZ-H1DZ7W + Modbus RTU module
Setare: 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%
- Ghid de selecție
Reguli rapide
- Montare: H=CT combined type, WR=direct measuring type
- Actual: 1=0.5~60A, 2=0.5~100A
- Funcţie: D=1-channel 4-20mA, H=2-channel, U=communication
- Voltaj: Z7=85~250VAC/DC, C=24VAC/DC
- Versiune: W=Standard, Q=Enhanced
Applicable Scenarios of EOCRPFZ-H1DZ7W
General Applications
- Supraîncărcare, pierdere de fază, 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
Tratarea apei: Pompa de apa, sewage pump, dosing pump, aeration fan
HVAC: Centrifugal fan, axial fan, exhaust fan, cooling tower fan
Machinery Manufacturing: Conveyor, mixer, crusher, air compressor
Petrochimic: Process pump, stirring equipment, explosion-proof matched motor
Clădire & Metalurgie: Kiln fan, dust removal unit, conveying equipment
Distribuția energiei în clădire: 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
Non-recommended Scenarios
- 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
