Product Details
Product Description
The ABB REF 542plus (Part No. 542 plus) is a compact bay control and protection terminal engineered for medium-voltage systems. Although ABB discontinued this model in 2020, it remains widely recognized for its integrated feeder, transformer, and motor protection capabilities.
Key Features
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Compact design for digital bay control
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Integrated protection functions for feeders, transformers, and motors
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Programmable logic using FUPLA (Function Plan Language)
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Flexible hardware and software options for customization
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Configuration software supporting project-specific programming
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Training support including FUPLA upload/download, creation, and verification
Technical Specifications
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Manufacturer ABB
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Model REF542 plus
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Part Number 542plus
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Product Type Feeder Terminal Bay Control Unit
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Application Scope Feeder, transformer, and motor protection
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Control Functions Bay control and protection unit
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Programming Interface FUPLA logic programming
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Shipping Weight 5 kg
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Status Discontinued since 2020
Application Scenarios
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Medium-voltage substations requiring compact bay control solutions
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Industrial facilities with feeder and transformer protection needs
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Motor protection in distributed control systems
FAQ
Q: Is the REF542plus still available as a new product? A: No, ABB discontinued the REF542plus in 2020, but it remains supported in existing installations.
Q: What configuration tools are used? A: The REF542plus uses ABB’s configuration software with FUPLA programming for logic customization.
Q: What are the alternatives to REF542plus? A: ABB offers updated bay control and protection units such as REF615 and REF620 with enhanced digital integration.
Similar Model Comparison
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REF542plus: Discontinued, compact bay control with FUPLA programming
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REF615: Active, advanced feeder protection with IEC 61850 support
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REF620: Active, extended motor and transformer protection functions
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.