Fixed Logical Automatic Recloser MT53A

MT53AS/ MT5SAI/ MT53AW

Ensure continuous power for your remote infrastructure with the fixed logic automatic recloser MT53A from Matismart. Our professional-grade fixed logic automatic recloser is designed to provide a "monitoring and control" safety net for unmanned sites by automatically restoring power after transient electrical faults. By eliminating the need for manual intervention after nuisance trips, the MT53A significantly improves system uptime and reduces the high operational costs associated with sending technicians to remote locations.

• 2/4P for RCCB and 1-4P for RCBO
• High Compatibility
• Ultra-Compact Design
• Advanced Safety
• Reliable Synchronicity
• Three Control Methods: RS485, IO, and WiFi

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Features & Advantages

feature

Fixed Automatic Reclosing Logic

• Three fixed reclosing delays and attempts: 10s-60s-300s
• Smart Reset Logic: Automatically clears the reclosing counter after 15 minutes of stable operation.
• Intelligent Fault Delay: Implements a 10-second safety delay before attempting to reclose after a fault trip.
• Fail-Safe Lock: Enters a logic lock status if reclosing fails repeatedly, ensuring system safety until manual intervention or software command.

Versatile Remote Control

MT53AS RS485 control
MT53AI IO control
MT5SAW WiFi control

Compact & High-Efficiency Design

• Ultra-Compact Design: 
At only 18 mm wide, it saves over 50% of space compared to traditional devices, making it ideal for crowded distribution boards.
• Superior Durability: 
Built for longevity with a mechanical life of 20,000 operations, doubling the standard performance of domestic and foreign competitors.

Versatile Integration & Performance

High Compatibility: 
Seamlessly works with RCCB/RCBO from major brands, including Schneider, Nader, and Chint, etc., allowing for flexible system integration.
• Reliable Synchronicity: 
Features a double fulcrum parallel drive to ensure reliable and synchronized closing for 4P breakers.

Smart Feedback & Safety Security

• Advanced Safety: 
Includes a triple-mode toggle switch (Auto, Manual, Lock) and a physical safety lock jack to prevent accidental remote power-on during maintenance.
• Optional Aux Status Output: 
Provides real-time ON/OFF status feedback through a dedicated signal output port, allowing remote monitoring systems to confirm device execution.

Target

Application Areas

  • 01

    Smart Grid & Remote Monitoring

    Ideal for systems requiring the Auxiliary Output to feed status data back to a central control center.

  • 02

    Unmanned Telecom Stations

    Automatically restores power after transient faults, with RS485 capability for remote troubleshooting.

  • 03

    Industrial Maintenance

    Uses the Manual and Lock modes to provide a "logical self-locking" status, preventing accidental remote power-on while engineers are on-site.

  • 04

    Critical Infrastructure

    Fits into distribution boxes or cabinets with standard 18mm DIN rails for easy scaling in smart cities.

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