P54331NC7M0D18M SCHNEIDER Protection Relay

Schneider P54331NC7M0D18M Product Introduction and Technical Specifications
Brand: Schneider Electric
Model: P54331NC7M0D18M
Full Product Name: MiCOM P543 Line Current Differential Numerical Protection Relay
Series: MiCOM P54x Transmission Line Protection Relay Family
Country of Origin: United Kingdom
HS Code Reference: 85372090 (For customs reference only; confirm classification with local customs authority before declaration)
Overall dimension: 262 mm × 178 mm × 162 mm
Net weight: Approximately 2.35 kg

Electrical Specifications
Auxiliary supply voltage: 110–240 V AC / 110–250 V DC wide-range universal power supply
Nominal CT measuring input: 1 A or 5 A selectable, 50 Hz / 60 Hz adaptive
Binary input operating threshold: 24–250 V DC
Binary output contact rating: 250 V AC, 5 A resistive load
Power consumption: Maximum 18 W
Operating temperature range: -20 °C to +70 °C
Storage temperature range: -40 °C to +85 °C
Front panel protection rating: IP54; rear terminal compartment protection: IP20
Main Characteristics
High-speed current differential core protection with inherent stability for external through faults;
Integrated distance backup protection (2-zone impedance characteristic) for backup fault clearing;
Supports IEEE C37.94 compliant fiber and multiplexed digital communication interfaces for inter-relay data exchange;
Built-in disturbance recorder, multi-cycle fault waveform capture and long-term event sequence logging for post-fault analysis;
Rich configurable binary inputs and outputs for breaker status monitoring, trip command and alarm signalling;
Multiple standard communication protocols including IEC 60870-5-103, Modbus RTU/TCP for SCADA system connection;
Graphical local human-machine interface with single-line diagram display and multi-language menu support;
Flexible logic matrix and user-definable function blocks to adapt diverse substation control schemes;
Comprehensive hardware self-monitoring covering CT circuit supervision, power supply anomaly and internal module diagnostics;
Supports synchronous time synchronization via IRIG-B and SNTP;
Compliant with international EMC standards to withstand heavy electromagnetic interference inside high-voltage substations;
Wall-mounted or cabinet flush mounting design suitable for standard relay panels;
Fully configured via MiCOM S1 Studio engineering software for parameter setting, testing and firmware upgrade;
Suitable for protection of medium and high voltage transmission lines, tie-lines and interconnection cables within power grid infrastructure.