Schneider EOCRSS-60NW7PQ

Informações básicas do produto

Marca: SAMWHA EOCR (Schneider Korea)

Tipo de produto: EOCR-SS Series Knob-type Electronic Motor Protector (Replaces traditional thermal overload relays)

Segmento	Código	Definição
EOCRSS	Série	SS Economy Integrated Through-Core Motor Protector
60	Classificação atual	Built-in CT, adjustable rated current: 5.0～60A, compatible with 1.5～30kW three-phase motors
N	Modo de proteção	Type N Fail-Safe: Contacts open and contactor trips upon protector power loss or fault; Type R does not trip when power fails
W7	Fonte de energia	W7 = Wide Voltage AC 180～480V (Suitable for 380/400/440V industrial three-phase power grids)
P	Configuração de contato	P = Standard changeover contacts: 95(NC)/97(NÃO) (1 Normalmente aberto + 1 Normalmente fechado)
P	Função Adicional	Q = Built-in Modbus-RTU RS485 communication; supports PLC/DCS remote monitoring, real-time current reading and fault code retrieval

3.1 Atual & Time Adjustment

Faixa Atual: 5～60A (10:1 wide adjustment ratio)

Hora D (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 Funções de proteção

3.3 Especificações Elétricas

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

Contatos de saída: 5A/250VAC changeover contacts (95NC, 96COM, 97NÃO)

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

Tensão suportável dielétrica: 2kV for 1 minuto

Consumo de energia: ≤250mA

3.4 Ambiente & Instalação

Temperatura operacional: -20℃～+60℃; Temperatura de armazenamento: -30℃～+80℃

Umidade: 30%～85%RH, sem condensação

Montagem: Standard 35mm DIN rail or screw fixing

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

Front Panel Knobs & Indicadores
LOAD(UM): Motor rated current adjustment knob (5～60A)
D-TEMPO: 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)
REINICIAR: Manual reset button; TESTE: 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, estações de bombeamento, central air conditioning and centralized monitoring control rooms
Cenários típicos de aplicação

380V three-phase fans, bombas de água, compressores de ar, 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

Diretrizes de fiação
Circuito Principal: 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
Circuito de Controle: 96COM como terminal comum; 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
Matriz de solução de problemas

Fenômeno de falha	Causa raiz	Soluções
TRIP LED stays lit and cannot be reset	Continuous overload / motor stall	Reduza a carga, increase set current, check mechanical jamming
TRIP LED flashes twice	Perda de fase	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

Modelos alternativos da mesma série
Non-communication version: EOCRSS-60NW7P (Não RS485, menor custo)
24–240V power supply version: EOCRSS-60NS7PQ (S7 = 24~240V AC/DC)
Classificação atual mais alta: For motors over 60A, select EOCRSS-100 series with external CT

Notícias Notícias comerciais