Home Recloser & Remote Controller MT53ASp PRO Auto Reclosing Module

MT53ASp PRO Auto Reclosing Module

MT53ASp

The MT53ASp Series is a PRO-type automatic reclosing module with manual/fault trip identification, configurable reclosing strategies, RS485 Modbus remote control, and operation records for safer and smarter circuit recovery.

• Distinguishes intentional opening from fault tripping
• No automatic reclosing after manual or intentional remote opening
• Configurable 1–5 automatic reclosing attempts
• 4 preset reclosing strategies plus custom mode
• Independently configurable reclosing waiting time for each cycle
• RS485 Modbus RTU remote opening, closing, locking, reset, reboot, and parameter configuration
• Records opening cause, closing cause, lock cause, and operation count
• Re-tripping within ≤700ms after closing is identified as a permanent fault and locked out
• AUTO / MANU / mechanical LOCK operation modes
• Supports up to 2 auxiliary OF / SD signal modules

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Features & Advantages

feature

Manual / Fault Trip Identification

Distinguishes intentional manual or remote opening from fault tripping, preventing unwanted automatic reclosing after deliberate circuit disconnection.

Configurable Reclosing Strategies

Supports Short-1, Short-3, Long-fixed, Progressive, and custom reclosing strategies, with configurable reclosing times and delays for different operating conditions.

Operation & Fault Records

Records opening causes, closing causes, lock causes, and operation counts, helping users trace circuit events and simplify maintenance.

Safe Operation Modes

AUTO, MANU, and mechanical LOCK modes provide clear control over automatic recovery, local operation, and maintenance safety.

Target

Application Areas

01
Lighting Circuits

Provide controlled automatic recovery for general lighting and power branch circuits after recoverable fault trips.
02
Factory Auxiliaries

Suitable for fans, water pumps, and factory auxiliary circuits where configurable restart timing and service continuity are required.
03
Unattended Equipment

Support automatic recovery, remote control, and status monitoring for unattended equipment and communication circuits.
04
Transient Loads

Suitable for circuits prone to nuisance tripping caused by temporary surges, while avoiding repeated reclosing when persistent faults remain.