| Type: Protection Manual | |
| Role: Used for controlling and monitoring field devices in industrial automation systems. It interfaces with various sensors, actuators, and other field equipment. | |
| Key Specifications | |
| Power Supply | Typically 24V DC or 110V AC/DC |
| Communication: | Supports protocols like Modbus and IEC 61850 for communication |
| Mounting | Designed for panel or rack mounting |
| Operating Temp | -20°C to +60°C |
| Power consumption | ≤ 20 W (Typical, 2 BIOs) |
| Admissible ripple | Less than 10% |
| Ambient operation temperature | -10 + 55 °C |
The ABB REF542 PLUS 76A3NDNN36ESU31 Protection Manual is a reliable protection relay designed to ensure secure operation of electrical systems.
It provides a range of protection functions for various power system applications, with high accuracy and fast fault detection to minimize damage.
The relay is highly configurable to meet specific needs and supports communication protocols like IEC 61850, Modbus, and Ethernet for
easy integration. Its intuitive HMI simplifies configuration and monitoring, while remote access via Ethernet enables convenient
management. Built to endure harsh environments, the REF542 PLUS includes event logging and diagnostics for performance
tracking and fault analysis. Compliant with IEC 60255 and IEC 61850 standards, it ensures flexibility
and regulatory compliance.
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