Schneider EOCRSS-60NW7PQ

Informații de bază despre produs

Marca: SAMWHA EOCR (Schneider Korea)

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

Segment	Cod	Definiţie
EOCRSS	Serie	SS Economy Integrated Through-Core Motor Protector
60	Evaluare curentă	Built-in CT, adjustable rated current: 5.0～60A, compatible with 1.5～30kW three-phase motors
N	Modul de protecție	Type N Fail-Safe: Contacts open and contactor trips upon protector power loss or fault; Type R does not trip when power fails
W7	Alimentare electrică	W7 = Wide Voltage AC 180～480V (Suitable for 380/400/440V industrial three-phase power grids)
P	Configurare contact	P = Standard changeover contacts: 95(NC)/97(NU) (1 Deschis normal + 1 În mod normal închis)
Q	Funcție suplimentară	Q = Built-in Modbus-RTU RS485 communication; supports PLC/DCS remote monitoring, real-time current reading and fault code retrieval

3.1 Actual & Time Adjustment

Interval de curent: 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 Funcții de protecție

3.3 Specificații electrice

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

Output Contacts: 5A/250VAC changeover contacts (95NC, 96COM, 97NU)

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

Tensiune de rezistență dielectrică: 2kV for 1 minut

Consumul de energie: ≤250mA

3.4 Mediu & Instalare

Temperatura de operare: -20℃～+60℃; Temperatura de depozitare: -30℃～+80℃

Umiditate: 30%～85%RH, necondens

Montare: Standard 35mm DIN rail or screw fixing

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

Front Panel Knobs & Indicators
LOAD(O): 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)
RESET: Manual reset button; TEST: 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
Scenarii tipice de aplicare

380V three-phase fans, pompe de apa, compresoare de aer, 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

Ghid de cablare
Circuitul 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
Circuit de control: 96COM as common terminal; 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
Comunicare RS485: A/B differential bus, daisy-chain wiring for multiple devices
Matricea de depanare

Fenomen de eroare	Cauza de bază	Soluții
TRIP LED stays lit and cannot be reset	Continuous overload / motor stall	Reduceți sarcina, increase set current, check mechanical jamming
TRIP LED flashes twice	Phase loss	Inspect main circuit fuses, contactor contacts and motor wiring
Niciun răspuns după pornire, 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 (Nu RS485, cost mai mic)
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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