Multi-Functional Smart Metering MCCB MT88M

MT88M

The MT88M Smart Metering MCCB is a next-generation intelligent circuit breaker designed for AC 50Hz distribution networks with a rated voltage of 400V and current up to 630A. Equipped with a high-performance 32-bit ARM microprocessor, this device provides not only traditional circuit protection but also high-precision energy metering (Class 1.0) and real-time monitoring of three-phase supply voltage, load current, and residual current. With its pluggable HPLC modules and support for Modbus-RTU/DL-T645 protocols, the MT88M enables seamless integration into IoT-based power systems for remote control and intelligent regulation.

• 3P+N, up to 800A
• Overcurrent/Short-Circuit (LSI) Protection
• Residual Current Protection (RCD)
• Automatic Reclosing Function
• RCD Auto-Adjustment for Reliability
• Over/Under Voltage, Phase/Neutral Loss Protection
• High-Accuracy (1.0 Class) Energy Metering
• Real-time Power/Energy Parameter Measurement
• Time Control & Fee Control Modes
• RS485 Interface (Modbus-RTU / DL/T-645)
• High-Performance 32-bit ARM CPU
• HPLC Carrier & Micro-power Bluetooth
• Remote Signaling, Metering, Control, Regulation
• Support for Online Remote Upgrade

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Features & Advantages

feature

All-in-One Integration

Integrates metering, protection, auto-recloser, and remote control into a single unit, eliminating the need for separate professional wiring and saving significant cabinet space.

Comprehensive Safety & Protection

• Three-Stage Electronic Tripping: Provides long-time delay, short-time delay, and instantaneous protection.
• Advanced Voltage & Phase Protection: Includes overvoltage, undervoltage, phase loss, and neutral loss protection.
• High Breaking Capacity: Designed with a high breaking capacity to ensure reliable short-circuit protection.
• Terminal Monitoring: Optionally supports real-time temperature monitoring of the incoming terminal block.

Smart Leakage & Reclosing Management

• Dynamic Leakage Protection: Offers residual current (earth leakage) protection with online gear setting and reclosing functions.
• Adaptive Reliability: Monitors line residual current in real-time and automatically adjusts gears to ensure reliability.
• Auto-Recloser: Features an auto-reclosing function to maintain power continuity.

Precision Metering & Data Visualization

• High-Accuracy Metering: Delivers energy metering up to grade 1.0 within the 0.05 in to 1.2 in range.
• Full Power Parameters: Real-time measurement of active, reactive, and apparent power, as well as power factor.
• Energy Accumulation: Tracks three-phase active power accumulation.
• Real-time Monitoring: The LCD displays real-time residual current, three-phase supply voltage, and load current.

Operation & System Integration

• Fault Diagnostics: Identifies, displays, stores, and allows users to inquire about or delete detailed trip logs (overload, leakage, phase loss, etc.).
• Flexible Operating Modes: Offers optional modes for time control and cost control to suit various applications.
• Industry Standard Protocols: Supports and automatically identifies both DL/T645 and Modbus protocols.
• The "Four Remotes": Fully supports remote signaling, remote measuring, remote control, and remote regulation.
• User-Friendly Interface: Features a bilingual LCD (Chinese/English) for easy man-machine interaction.

Intelligent Core & High-Tech Hardware

Advanced Processing: Equipped with a high-performance 32-bit ARM microprocessor for real-time signal processing and intelligent control.
Wireless Connectivity: Features HPLC pluggable modules and micro-power Bluetooth for wireless communication.
Remote Maintenance: Supports online remote upgrades for maximum user convenience.

Target

Application Areas

  • 01

    Industrial Power Distribution

    Protects heavy machinery and factory lines from electrical faults and phase loss.

  • 02

    Smart Buildings

    Integrates with building management systems for energy tracking and remote control.

  • 03

    Photovoltaic (PV) Systems

    The "PV version" includes passive islanding protection and power quality monitoring, ideal for solar energy setups.

  • 04

    Commercial Energy Management

    Use the "Fee Control" mode to manage power usage and billing in rental spaces or offices.

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