ABB REF545KC133AAAA Protective Relay Module

The ABB REF545KC133AAAA is a highly reliable industrial protection relay designed for overcurrent protection in power systems. It offers advanced fault detection and tripping capabilities, ensuring optimal protection for electrical circuits and equipment.

ABB REF545KC133AAAA Protective Relay Module

The ABB REF545KC133AAAA Protective Relay Module delivers advanced electrical system protection, ensuring operational reliability and safeguarding critical equipment against faults and overloads. Engineered for industrial environments demanding high-performance safety solutions, this module provides comprehensive protection for power distribution networks, manufacturing facilities, and critical infrastructure.

Technical Specifications

Brand ABB
Model REF545KC133AAAA
Type Protection Relay
Rated Voltage Up to 380V AC
Rated Current Up to 20A
Frequency Range 50/60 Hz
Protection Functions Overcurrent, Earth Fault, Phase Disconnection, Overvoltage, Undervoltage
Communication Modbus, Ethernet
Operating Temperature -40°C to +85°C
Certifications IEC 61000-4-4, IEC 61000-4-5

ABB REF545KC133AAAA Front View
ABB REF545KC133AAAA Side View
ABB REF545KC133AAAA Installation

Applications & Compatibility

Designed for critical protection in industrial power systems including manufacturing plants, substations, and energy distribution networks. The REF545KC133AAAA integrates seamlessly with ABB’s Relion® protection series and compatible with control systems using Modbus protocols. Ideal for motor protection, transformer safeguarding, and feeder monitoring applications where rapid fault detection is essential.

Our Services

Apex Automation – Founded in 2014, we specialize in ready-to-ship industrial automation solutions with expert technical support. Our team provides:

  • Pre-sales technical consultation for optimal system integration
  • Comprehensive 1-year warranty on all products
  • Priority replacement service for defective units
  • Custom sourcing for discontinued or hard-to-find models

Contact us for pricing and availability:
WhatsApp Support |
Email: anikaqx@gmail.com




    Customers reviews

    There are no reviews yet.

    Be the first to review “ABB REF545KC133AAAA Protective Relay Module”

    Your email address will not be published. Required fields are marked *

    Search for products

    Back to Top
    Product has been added to your cart
    phone: +8613639522374
    to whats
    +8613639522374
    to whats
    +8613639522374
    email: anikaqx@gmail.com