Product Overview

• Part No: MCGG62N1CB0753F
• Brand: ALSTOM

• Category: Overcurrent Protection RelayMCGG62N1CB0753F belongs to ALSTOM classic MCGG series plug-in protection relay. It monitors three-phase current signals in real time, providing configurable overcurrent, earth fault and overload protection functions. The unit outputs relay trip and alarm contacts when electrical faults occur to isolate faulty circuits and safeguard generators, motors and switchgear equipment. Equipped with transparent protective cover and local setting switches, it is widely used as replacement spare for thermal power plants, distribution substations and medium voltage control cabinets.

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Core Features

• Multi-stage adjustable overcurrent and earth fault protection with flexible time delay settings
• Transparent front cover for convenient parameter adjustment and status observation
• Built-in surge suppression circuit, strong anti-interference capability for power plant electromagnetic environment
• Standard plug-in modular structure, supporting quick onsite replacement
• Multiple programmable relay output contacts for trip command and fault alarm

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

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Technical Specifications

• Auxiliary Supply: 110V/220V AC/DC
• Rated CT Input: 1A / 5A
• Operating Temperature: -20°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Installation: Standard chassis plug-in mounting

• Front Protection Class: IP40

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Compatibility & Application

• Matches ALSTOM power secondary control cabinet system
• Widely applied in thermal power plants, industrial captive power stations and distribution substations
• Used for generator auxiliary equipment, medium voltage motor and feeder circuit overcurrent protection