슈나이더 EOCRSS-60NW7PQ

기본 제품 정보

상표: SAMWHA EOCR (슈나이더 한국)

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

분절	암호	정의
EOCRSS	시리즈	SS Economy Integrated Through-Core Motor Protector
60	현재 등급	Built-in CT, adjustable rated current: 5.0～60A, compatible with 1.5～30kW three-phase motors
N	보호 모드	Type N Fail-Safe: Contacts open and contactor trips upon protector power loss or fault; Type R does not trip when power fails
W7	전원공급장치	W7 = Wide Voltage AC 180～480V (Suitable for 380/400/440V industrial three-phase power grids)
피	연락처 구성	P = Standard changeover contacts: 95(NC)/97(아니요) (1 평상시 열림 + 1 평상시 닫힘)
큐	추가 기능	Q = Built-in Modbus-RTU RS485 communication; supports PLC/DCS remote monitoring, real-time current reading and fault code retrieval

3.1 현재의 & Time Adjustment

현재 범위: 5～60A (10:1 wide adjustment ratio)

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

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

3.2 보호 기능

3.3 전기 사양

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

출력 접점: 5A/250VAC changeover contacts (95NC, 96COM, 97아니요)

의사소통: RS485 모드버스 RTU (Exclusive to Q suffix models)

유전체 내전압: 2kV for 1 분

전력 소비: ≤250mA

3.4 환경 & 설치

작동 온도: -20℃～+60℃; 보관 온도: -30℃～+80℃

습기: 30%～85%RH, 비응축

설치: Standard 35mm DIN rail or screw fixing

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

Front Panel Knobs & Indicators
LOAD(에이): Motor rated current adjustment knob (5～60A)
D-TIME: 시작 지연 (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)
다시 놓기: Manual reset button; 시험: 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, 펌프장, central air conditioning and centralized monitoring control rooms
일반적인 애플리케이션 시나리오

380V three-phase fans, 물 펌프, 공기 압축기, 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

배선 지침
주회로: 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
제어 회로: 96COM을 공통 터미널로 사용; 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
문제 해결 매트릭스

결함 현상	근본 원인	솔루션
TRIP LED stays lit and cannot be reset	Continuous overload / motor stall	부하 감소, increase set current, check mechanical jamming
TRIP LED flashes twice	위상 손실	Inspect main circuit fuses, contactor contacts and motor wiring
No response after power-on, PWR LED 꺼짐	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

소식 무역 뉴스