KRK SFMK 03 Motor Protection Relay

nGeneral Features
n* Three-phase
n* Phase – Neutral
n* Phase Absence control
n* Phase Sequence control
n* Asymmetry: 40
n%* 100,000 On/Off life.( Resistive load)*
n22.5 mm Modular Type
n* True RMS
n* Supply Voltage : 220 V AC
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Introduction

nMotor protection relays are crucial components in industrial settings to ensure the safe and efficient operation of motors. Among these, the KRK SFMK 03 Motor Protection Relay stands out for its advanced features and reliability.
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General Features of KRK SFMK 03

nThe KRK SFMK 03 is designed to offer comprehensive protection to three-phase motors. Its key features include:
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Three-phase Capability

nThe relay is designed to monitor and protect three-phase motors, ensuring they operate within safe parameters.
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Phase – Neutral Protection

nIt includes protection against phase-neutral faults, safeguarding the motor against potential damage.
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Phase Absence and Sequence Control

nThe relay can detect phase absence and maintain the correct phase sequence, preventing motor malfunction.
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Asymmetry Control

nWith asymmetry control up to 40%, the relay ensures balanced load distribution among phases, enhancing motor longevity.
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Long On/Off Life

nThe KRK SFMK 03 boasts an impressive 100,000 on/off life cycles with resistive loads, ensuring durability and longevity.
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Compact Modular Design

nMeasuring just 22.5 mm, the relay’s modular design makes it easy to integrate into control panels and electrical systems.
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True RMS Technology

nUtilizing True RMS measurement, the relay accurately measures voltage and current, providing precise protection.
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Supply Voltage Specifications

nIt operates at a supply voltage of 220 V AC, suitable for a wide range of industrial applications.
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Importance of Motor Protection Relays

nMotor protection relays like the KRK SFMK 03 are vital in preventing motor damage, reducing downtime, and improving overall operational efficiency.
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Applications and Industries Using KRK SFMK 03

nThe KRK SFMK 03 finds applications across various industries such as manufacturing, utilities, and transportation, where motor protection is critical.
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Advantages of Using KRK SFMK 03 Motor Protection Relay

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• Enhanced motor lifespan

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• Reduced maintenance costs

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• Improved system reliability

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• Quick fault detection and response

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Installation and Maintenance Guidelines

nProper installation and regular maintenance are essential for optimal performance and longevity of the KRK SFMK 03 relay. Refer to the manufacturer’s guidelines for detailed instructions.
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Conclusion

nIn conclusion, the KRK SFMK 03 Motor Protection Relay offers a comprehensive solution for protecting three-phase motors, ensuring efficient and reliable operation across diverse industrial applications.
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nFAQs
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1. How does the KRK SFMK 03 protect against phase-neutral faults?

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2. Can the relay be used in single-phase systems?

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3. What are the key benefits of True RMS technology in motor protection relays?

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4. Is the KRK SFMK 03 suitable for high-voltage applications?

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5. Are there specific maintenance intervals recommended for the KRK SFMK 03 relay?

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