REF542PLUS 76C3NDDD361WS21 | Feeder Protection Terminal

Industrial Protection & Control Solutions

Main Features and Benefits

The REF542PLUS represents ABB’s cutting-edge feeder protection technology, delivering comprehensive electrical network security in a compact footprint. This next-generation terminal integrates advanced protection functions with intuitive control capabilities, making it ideal for industrial power distribution systems. Its modular architecture supports flexible configuration while maintaining compliance with international safety standards.

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Key performance advantages include:

• Intelligent protection logic: Combines overcurrent (50/51), earth fault (50N/51N), and thermal overload protection with configurable curve characteristics
• Seamless system integration: Native support for IEC 61850 protocol enables direct communication with substation automation systems
• Advanced diagnostics: Integrated event recorder with 128-event buffer and oscillographic fault recording

With its robust industrial design, the REF542PLUS maintains reliable operation in electrically noisy environments. The bright LCD display provides clear system status visibility, while the front-panel keypad enables local parameter adjustments without additional tools. Automatic self-supervision routines continuously monitor hardware health, triggering pre-alarms for potential issues before they cause downtime.

Expert Automation Solutions

As certified ABB partners, we specialize in providing tailored protection systems for critical infrastructure. Our engineering team offers comprehensive project support – from initial system design to commissioning and maintenance planning. We ensure optimal REF542PLUS implementation through detailed short-circuit analysis and coordination studies.

Every purchase includes our premium 36-month technical support package featuring:

• Remote configuration assistance via secure VPN connections
• Priority replacement for warranty claims
• On-site troubleshooting for complex fault scenarios

Custom configuration required? Email our protection specialists for application-specific adaptations. Response guaranteed within 2 business hours.

Application Areas

The REF542PLUS excels in critical power management scenarios including manufacturing plant substations, renewable energy facilities, and infrastructure protection systems. Its compact design makes it particularly suitable for retrofitting existing switchgear where space is constrained.