Description

ABB REF541KM118AAAA Integrated Protection Microcomputer Relay Protection Device Feedback Signal Terminal

REF541KM118AAAA

As a sophisticated protection and control relay, the ABB REF541KM118AAAA serves as the watchful guardian of electrical systems. It continuously and precisely monitors key electrical parameters like current, voltage, frequency, and power factor. In large – scale industrial manufacturing facilities, it stands guard over motors, transformers, and other heavy – duty electrical machinery, detecting anomalies such as overloads, short circuits, and unbalanced loads in real – time. By swiftly triggering protective actions, it prevents potential damage that could lead to costly breakdowns and production interruptions. In power generation and distribution networks, the ABB REF541KM118AAAA helps maintain grid stability by ensuring the smooth flow of electricity and promptly isolating faulty sections when issues arise. Its seamless integration with existing industrial control systems empowers operators to manage electrical risks proactively and keep operations running without a hitch.

Label	Specification
Model Number	REF541KM118AAAA
Brand	ABB
Type	Protection and Control Relay
Input Voltage	110 – 240 V AC/DC
Operating Temp	-25°C to +70°C
Communication Method	Ethernet (IEC 61850), Profibus DP, Modbus RTU
Mounting	DIN Rail
Weight	Approx. 1.8 kg
Certifications	CE, IEC 61850 – 3, IEEE 1613
Dimensions	200 x 120 x 90 mm
IP Rating	IP20
Protocols Supported	IEC 61850, DNP3, IEC 60870 – 5 – 103

REF541KM118AAAA

The ABB REF541KM118AAAA is engineered with a host of remarkable functional strengths that distinguish it in the competitive industrial electrical market. Its rapid – response fault detection mechanism can identify electrical irregularities in a fraction of a second, minimizing the impact of faults on the overall system and reducing the risk of cascading failures. The device’s intelligent algorithms are designed to accurately differentiate between normal system fluctuations and genuine faults, significantly reducing false trips and enhancing the selectivity of protection actions. This not only boosts the reliability of the electrical system but also cuts down on unnecessary maintenance and associated costs.

REF541KM118AAAA

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In terms of build quality, the ABB REF541KM118AAAA is constructed to endure the harshest industrial environments. Its rugged enclosure and robust internal components are designed to withstand extreme temperatures, intense vibrations, and high levels of electrical noise. Compliance with international standards such as IEC 61850 – 3 and IEEE 1613 attests to its suitability for use in critical power applications. As part of ABB’s comprehensive product ecosystem, the ABB REF541KM118AAAA offers excellent compatibility with a wide range of ABB and third – party electrical devices, including circuit breakers, switchgear, and SCADA systems. This seamless interoperability simplifies system integration, enabling efficient communication and coordinated operation within the electrical infrastructure.

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