Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
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.
- Model Code Definition
| Сегмент | Код | Описание |
| Серия продуктов | EOCRPFZ | Electronic Over Current Relay, Panel Flush Mount Type |
| Тип монтажа | ЧАС | Combined type, matched with 3 current transformers |
| Текущий рейтинг | 1 | Direct measurement: 0.5~60A |
| 5-turn mode: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Function Configuration | Д | Базовая защита + 1-channel 4-20mA analog output |
| Номинальное напряжение | Z7 | Wide voltage supply: 85~250VAC/DC, 50/60Гц |
| Дополнительная функция | Вт | Standard version with fault record, LED display and reset function |
- Основные технические параметры
| Категория | Спецификация | Remark |
| Функции защиты | Перегрузка по току, undercurrent, потеря фазы, locked rotor, reverse rotation, текущий дисбаланс, ларек, grounding, утечка, короткое замыкание, pre-alarm | Selectable definite time, inverse time and overheating inverse time characteristics |
| Текущий диапазон | Direct: 0.5~60A | Wide coverage for diverse motors |
| 5-turn: 0.1~2.0A | ||
| External CT: 1~3600A | ||
| Источник питания | 85~250VAC/DC, 50/60Гц | Strong tolerance to voltage fluctuation |
| Output Signal | 1-channel 4-20mA current loop | For PLC and upper computer monitoring |
| Рейтинг контактов | 1-SPST, AC250V/3A resistive load | Standard control contact |
| Режим отображения | ЖК-экран, 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 |
| Время ответа | 20РС | Fast motor protection |
| Установка | 35mm DIN rail or panel flush mounting | Cutout: 44-55-66мм, Контур: 55-66-77мм |
| Working Ambient | Температура: -35~85℃, Влажность: ≤95% non-condensing | Suitable for harsh industrial conditions |
| Insulation Performance | Сопротивление изоляции: ≥10MΩ@DC500V | Безопасный и надежный |
| Withstand voltage: 2kV/50Hz for 1min between circuit and shell | ||
| Номер заказа | EOCRPFZ-H1DZ7W | Official Schneider part number |
- Full Model List (EOCR-PFZ Series)
| Модель | Текущий рейтинг | Функция | Источник питания | Extra Feature |
| EOCRPFZ-H1DZ7W | 0.5~60A | Базовый + 1×4-20mA | 85~250VAC/DC | Стандартный |
| EOCRPFZ-H2DZ7W | 0.5~60A | Базовый + 2×4-20mA | 85~250VAC/DC | Стандартный |
| EOCRPFZ-WRDZ7W | 0.5~60A | Базовый + 1×4-20mA | 85~250VAC/DC | Стандартный |
| EOCRPFZ-WRDUH | 0.5~60A | Базовый + Коммуникация | 85~250VAC/DC | Стандартный |
| EOCRPFZ-C-WRDBWQ | 0.5~60A | Базовый + 1×4-20mA | 24В переменного/постоянного тока | Wide range |
| EOCRPFZ-C-WRDBT | 0.5~60A | Базовый + 1×4-20mA | 24В переменного/постоянного тока | Wide range |
| EOCRPFZ-H3DBW | 0.5~60A | Базовый + 3-channel output | 85~250VAC/DC | Стандартный |
| EOCRPFZ-WRDZ7WQ | 0.5~60A | Базовый + 1×4-20mA | 85~250VAC/DC | Улучшенный |
- Cross-brand Replacement Comparison
| Schneider EOCRPFZ-H1DZ7W | АББ | Сименс | Омрон | Feature Comparison |
| Intelligent motor protector | M101-P | 3RW55 | K8DS | Шнайдер: 3 записи неисправностей, 20ms fast response |
| 0.5~60A | 0.1~63A | 0.1~63A | 0.1~63A | АББ: Superior communication performance |
| 1×4-20mA | 1×4-20mA | 1×4-20mA | 1×4-20mA | Сименс: High PLC compatibility |
| Широкое напряжение | 24~240VAC/DC | 24~240VAC/DC | 24~240VAC/DC | Омрон: Экономически эффективный |
- Распространенные неисправности & Поиск неисправностей
| Явление неисправности | Код | Root Cause | Решение |
| Protector fails to start | – | Power cut-off, abnormal voltage | 1. Проверьте проводку |
| 2. Measure supply voltage | |||
| 3. Verify DC polarity | |||
| Ложное срабатывание | 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, свободная проводка, 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 | – | Неправильная проводка, mismatched baud rate | 1. Check RS485 A/B connection |
| 2. Set 9600bps, 8N1 | |||
| 3. Confirm 120惟 terminal resistor |
- Air Transport Compliance & Сертификаты
6.1 Сертификаты
CE: Compliant with EU LVD and EMC directives
UL: Meets US safety standards
CSA: Conforms to Canadian safety specifications
РоХС: Lead-free eco-friendly design
6.2 Air Shipment Rules
Battery status: No built-in lithium battery or supercapacitor, classified as non-dangerous goods
Упаковка: 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
- Случаи применения
Случай 1: Fan Motor Protection in Steel Plant
Приложение: 380V 55kW frequent-start fan motor with locked rotor risk
Matching: EOCRPFZ-H1DZ7W + 200:5 three-phase CT
Параметр: 1.2 times rated current overcurrent protection (inverse time); 3 times rated current locked rotor protection (0.5s delay); 3s delay phase loss protection
Outcome: 3 bearing seizure motor burnout accidents avoided, maintenance cost cut by 40%
Случай 2: Chemical Pump Monitoring System
Приложение: 45kW explosion-proof chemical pump with remote current monitoring demand
Matching: EOCRPFZ-H1DZ7W + Modbus RTU module
Параметр: 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%
- Рекомендации по выбору
Quick Rules
- Монтаж: H=CT combined type, WR=direct measuring type
- Текущий: 1=0.5~60A, 2=0.5~100A
- Функция: D=1-channel 4-20mA, H=2-channel, U=communication
- Напряжение: Z7=85~250VAC/DC, C=24VAC/DC
- Версия: W=Standard, Q=Enhanced
Applicable Scenarios of EOCRPFZ-H1DZ7W
General Applications
- Перегрузка, потеря фазы, 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
Очистка воды: Водяной насос, sewage pump, dosing pump, aeration fan
ОВК: Centrifugal fan, axial fan, exhaust fan, cooling tower fan
Machinery Manufacturing: Conveyor, mixer, crusher, air compressor
нефтехимическая: Process pump, stirring equipment, explosion-proof matched motor
Building & Metallurgy: 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
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
