Product Overview

• Part No: MAVS01L1AB0751D
• Brand: ALSTOM

• Category: Protection Relay ModuleMAVS01L1AB0751D belongs to ALSTOM MAVS series protective relay. It is a compact panel-mounted protection device for power system monitoring. The unit continuously detects voltage operating conditions, triggers relay output once abnormal voltage is detected, realizing overvoltage protection, alarm and interlock control. With configurable action thresholds and delay parameters, it serves as essential spare equipment for substation auxiliary power and industrial power distribution cabinet maintenance.

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Core Features

• Real-time voltage monitoring, support flexible setting of protection threshold and operating delay
• Relay contact output for alarm signal or protection trip circuit driving
• Transparent front cover for status observation and local parameter adjustment
• Built-in surge suppression circuit, strong anti-interference performance for power plant environment
• Compact standard housing, convenient panel installation and field replacement

• Passed EMC, vibration and thermal cycling reliability testing for continuous long-term operation

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Technical Specifications

• Auxiliary Supply Voltage: 110V/220V AC/DC
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard panel mounting

• Front Protection Class: IP40

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Compatibility & Application

• Matches ALSTOM power protection system secondary control circuit
• Widely used in thermal power plants, industrial self-generation stations and distribution substations
• Applied for auxiliary power grid voltage monitoring, overvoltage protection and equipment interlock protection