Micom P142 (P142318B2A0150C) English Technical Specifications
Parameter Category    Item    Specification
Basic Information    Model Number    Micom P142 (Full PN: P142318B2A0150C)
Product Type    Feeder Management & Overcurrent Protective Relay
Brand    Schneider Electric (Formerly AREVA/ALSTOM MiCOM)
Form Factor    40TE Standard Enclosure (6U Rack-Mount)
Electrical Ratings    Rated Current (In)    1A / 5A (Selectable via CT Input Setting)
Rated Voltage (Vn)    100-120V AC (Auxiliary Power: 110-250V DC / 100-240V AC, 50/60Hz)
Operating Voltage Range    Auxiliary: 85%-110% of Rated Voltage
Power Consumption    ≤20VA (Auxiliary), ≤5VA (Protection Circuit)
Protection Functions    Overcurrent (ANSI 50/51)    6-stage, Directional/Non-directional, IDMT/IEC/IEEE Curves
Earth Fault (ANSI 50N/51N)    Sensitive Earth Fault (SEF), High-Impedance Earth Fault (HIF)
Phase Loss/Unbalance    ANSI 46, Adjustable Pickup & Time Delay
Overvoltage/Undervoltage    ANSI 59/27, Voltage Supervision for Fault Blocking
Breaker Failure (ANSI 50BF)    Optional, With Scheme Supervision
Control & Monitoring    Binary Inputs    Max 48 Opto-Isolated Inputs (Modular)
Binary Outputs    Max 16 Relay Outputs (Form C, 10A/250V AC)
Analog Inputs    4 x 0-20mA / 4-20mA (Configurable for Voltage/Current)
Event Log    1000+ Sequential Events (Time-Stamped to 1ms)
Waveform Recording    Up to 8 Cycles Pre-Fault, 16 Cycles Post-Fault
Communication Interfaces    Ethernet    10/100BASE-T, IEC 61850 Ed.2, Modbus TCP
Serial    RS485 (Modbus RTU), IEC 60870-5-103, DNP3.0
Redundancy    Optional Dual Ethernet for Network Resilience
Mechanical & Environmental    Enclosure Protection    IP30 (Front Panel), NEMA 12 (Rack-Mount)
Mounting    6U 19” Standard Rack
Weight    Approx. 7.95 kg (40TE Enclosure)
Operating Temperature    -25°C to +70°C (Storage: -40°C to +85°C)
Humidity    5%-95% RH (Non-Condensing)
Altitude    ≤2000m (Derate 1% per 100m above 1000m)
Compliance    Standards    IEC 61850, IEC 60255, IEEE C37.2, EN 61010-1
Certifications    CE, ATEX (Optional), UL 508 (Optional)

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