Schneider EOCRSS-60NW7PQ

Basic Product Information

ماركة: SAMWHA EOCR (شنايدر Korea)

نوع المنتج: EOCR-SS Series Knob-type Electronic Motor Protector (Replaces traditional thermal overload relays)

شريحة	شفرة	تعريف
EOCRSS	مسلسل	SS Economy Integrated Through-Core Motor Protector
60	التقييم الحالي	Built-in CT, adjustable rated current: 5.0～60A, compatible with 1.5～30kW three-phase motors
ن	وضع الحماية	Type N Fail-Safe: Contacts open and contactor trips upon protector power loss or fault; Type R does not trip when power fails
W7	مزود الطاقة	W7 = Wide Voltage AC 180～480V (Suitable for 380/400/440V industrial three-phase power grids)
ص	تكوين الاتصال	P = Standard changeover contacts: 95(نورث كارولاينا)/97(لا) (1 مفتوح عادة + 1 مغلق عادة)
س	وظيفة إضافية	Q = Built-in Modbus-RTU RS485 communication; supports PLC/DCS remote monitoring, real-time current reading and fault code retrieval

3.1 حاضِر & Time Adjustment

النطاق الحالي: 5～60A (10:1 wide adjustment ratio)

D-Time (Start Stall Delay): 0.2～30s adjustable to avoid false tripping caused by high motor starting current

O-Time (Overload Trip Delay): 0.2～30s adjustable to match motor thermal characteristic curves

3.2 وظائف الحماية

3.3 المواصفات الكهربائية

Operating Power Supply: AC 180～480V (W7 wide voltage)

Output Contacts: 5A/250VAC changeover contacts (95نورث كارولاينا, 96كوم, 97لا)

تواصل: RS485 Modbus RTU (Exclusive to Q suffix models)

Dielectric Withstand Voltage: 2kV for 1 دقيقة

استهلاك الطاقة: ≤250mA

3.4 بيئة & تثبيت

درجة حرارة التشغيل: -20℃～+60℃; درجة حرارة التخزين: -30℃～+80℃

رطوبة: 30%～85%RH, غير التكثيف

تصاعد: Standard 35mm DIN rail or screw fixing

الدائرة الرئيسية: Two through-core CTs (Pass L1 and L2 through protector windows)

Front Panel Knobs & Indicators
LOAD(أ): Motor rated current adjustment knob (5～60A)
D-TIME: Start delay (Prevent false tripping during startup)
O-TIME: Overload trip delay
Green PWR LED: Power supply normal
Red TRIP LED: Fault tripping (Number of flashes indicates fault type)
إعادة ضبط: Manual reset button; امتحان: Unit self-test button
Key Differences of PQ Suffix (vs Standard 60NW7)
Built-in RS485 Modbus communication: Remotely read real-time operating current, fault logs and protector status; receive remote reset commands from upper computer
PCB of Q model integrates communication terminals, supporting multi-protector bus networking
Ideal for automated production lines, pump stations, central air conditioning and centralized monitoring control rooms
سيناريوهات التطبيق النموذجية

380V three-phase fans, مضخات المياه, ضواغط الهواء, belt conveyors and mixing motors

Motors with rated current 5～60A, no external current transformer required

Control cabinets requiring PLC remote motor data collection and remote fault reset

Wiring Guidelines
الدائرة الرئيسية: Run motor phase wires L1 and L2 through the two CT windows of the protector; L3 does not need to pass through
Power Terminals A1/A2: Connect to AC380V control power supply
دائرة التحكم: 96COM كمحطة مشتركة; wire 95NC normally closed contact in series with contactor coil (Type N opens on power loss); connect 97NO normally open contact to fault alarm indicator light
RS485 Communication: A/B differential bus, daisy-chain wiring for multiple devices
Troubleshooting Matrix

ظاهرة الخلل	السبب الجذري	الحلول
TRIP LED stays lit and cannot be reset	Continuous overload / motor stall	تقليل الحمل, increase set current, check mechanical jamming
TRIP LED flashes twice	Phase loss	Inspect main circuit fuses, contactor contacts and motor wiring
No response after power-on, PWR LED off	Abnormal power supply to A1/A2	Measure 380V power supply, replace the protector
No Modbus communication data	A/B wires reversed / duplicate device addresses	Swap RS485 A/B polarity, set unique address for each device

Alternative Models in the Same Series
Non-communication version: EOCRSS-60NW7P (No RS485, تكلفة أقل)
24–240V power supply version: EOCRSS-60NS7PQ (S7 = 24~240V AC/DC)
Higher current rating: For motors over 60A, select EOCRSS-100 series with external CT

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