Relay Bảo Vệ Quá Dòng Munhean OA703

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OA703

Munhean

Relay bảo vệ quá dòng OA703

DTL Overcurrent (MH) - OA 703 The Overcurrent Relay OA703 is designed to monitor the respective phase current of the power system and provides a relay operation in event of an over current situation. The ROA207 relay incorporates the MTB fault indication system in advanced protection relaying for system abnormalities. This eliminates the need of an auxiliary supply to provide a fault indication, ensuring enhanced safety.


Features
• Mechanical Trip Button (MTB) fault indication system
• No requirement for auxiliary power supply for fault indication
• Safeguard against automatic reset before fault rectification
• Trip status indication for individual phases
• Tamper-proof design for setting protection
• Type tested for EMC compliance in accordance with IEC 61000
• High immunity to electrical interference (tested to 2.5GHz)
• Type tested in accordance with IEC 60255

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