MTM1E Series MCCB

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MT-M1 Digital Electronic MCCB, 125A, 3/4P, 50kA, Microprocessor-Controlled Circuit Breaker

The MT-M1 Digital Electronic MCCB represents the next generation of circuit protection, integrating precision microprocessor control with robust molded case construction. Designed for AC 50Hz systems, this breaker provides fully programmable protection against overload, short-circuit, and ground fault conditions, while delivering real-time monitoring and intelligent fault management.

 

Encased in a high-strength thermoset housing, the breaker combines compact dimensions with outstanding mechanical durability. Its sophisticated electronics allow operators to monitor current, voltage, energy consumption, and fault history, enabling proactive maintenance and enhanced system reliability.

 

Key Features

 

  1. Programmable Protection – Microprocessor-based trip unit supports adjustable curves (L, S, I, G) to customize protection for varied applications.
  2. Real-Time Monitoring – LCD display shows voltage, current, power, frequency, power factor, and energy usage; logs up to 128 fault events.
  3. High Breaking Capacity – Rated up to 50kA at 415V AC, capable of handling extreme short-circuit conditions.
  4. Flexible Installation – Supports DIN rail or panel mounting; compact design optimizes space in distribution boards.
  5. Communication-Ready – Equipped with RS485 (Modbus-RTU) interface; optional Ethernet or PROFIBUS-DP for remote monitoring and control.
  6. Robust Construction – Thermoset casing ensures mechanical resilience and heat resistance; operates reliably in temperatures from -40°C to +85°C.
  7. Advanced Safety – Independent multi-level protection ensures precise fault interruption, reducing risk to equipment and personnel.

 

Applications

The digital MCCB is ideal for systems requiring advanced protection, real-time monitoring, and data-driven energy management:

 

* Critical Power Infrastructure – Data centers, hospital backup circuits, airport power systems, financial institution power protection.

* Industrial Automation – Precision protection for motor control centers, production lines, and complex machinery.

* Energy Management – Building management systems, renewable energy installations, smart grids, and power monitoring centers.

* Specialized Applications – Transformer protection, generator backup systems, main load center breakers, and networked circuit management.

 

Its programmable settings enable seamless coordination with downstream devices, minimizing downtime and maximizing equipment longevity, while communication interfaces allow integration into modern intelligent power systems.

 

Competitive Advantages

 

Why Choose the MT-M1 Digital Electronic MCCB:

  1. Precision Control – 32-bit microprocessor achieves current measurement accuracy within ±2%; eight configurable parameters for tailored protection.
  2. Smart Monitoring – Real-time electrical data, early warning alerts, and detailed fault records for predictive maintenance.
  3. High Performance – 50kA breaking capacity; over 20,000 mechanical operations; maintains rated performance across extreme temperatures.
  4. Flexible Connectivity – RS485 Modbus standard, optional Ethernet/PROFIBUS-DP; supports remote operation and live diagnostics.
  5. User-Friendly Interface – Multi-language LCD display, intuitive buttons, password-protected settings, plug-and-play modules.
  6. Certified Reliability – Compliant with IEC 60947-2 and GB 14048.2; tested extensively; backed by 5-year warranty.
  7. Customization Options – Adjustable protection curves, OEM branding, firmware upgrades for evolving needs.

 

The MT-M1 Digital MCCB combines advanced electronic protection with intelligent monitoring, offering superior performance, enhanced safety, and operational efficiency, making it ideal for modern interconnected electrical infrastructures.

  • Working Principle
  • Quality Explanation
  • Product Features
  • Installation & Commissioning
  • Packaging & Shipping
  • Project Cases
  • Product Selection Guide
Product Accessories

Place of Origin:

5th Floor, No. 3, Jinghong West Road, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province

Brand Name:

MINGTUO

Model Number:

MCCB MT  M1 -160

Certification:

IOS  CE  ROHS

Minimum Order Quantity:

1

Price:

31$

Packaging Details:

Wooden box packaging

Delivery Time:

Within fifteen days

Payment Terms:

100% prepaid, 70%/30%, 80%/20%

Supply Ability:

Available at any time

Type pole External Dimensions Installation Dimensions (mm) Rear Panel Connection Dimensions (mm)
L L1 W H H1 H2 a b ∅d a1 b1 d1 H3 H4
MTM1-63L 3 135 21 76 89.5 72 18 25 117 3.5 25 117 18 52 75
4 103
MTM1-63M 3 76 99 81 28
4 103
MTM1-125L 2 150 51 65 87 68 24 129 4.5 30 132 22 65 100
3 92 30
4 121
MTM1-125M,H 2 65 103.5 85 23
3 92 30
4 121
MTM1-250L 2 164 64 75 108 87 24 126 5.5 35 144 24 70 110
3 107 35
4 142
MTM1-250M,H 2 75 124.5 104 24
3 107 35
4 142
MTM1-400M,H 3 257 105 150 153 106 38 44 194 7 48 224 32 48.5 108.5
4 197 Left 44 Right 50
MTM1-630M,H 3 270 105 182 157 111 43 58 200 7 58 234 40 70 120
4 240
MTM1-800M,H 3 280 105 210 158 116 42 70 243 7 70 243 48 75 125
4 280

Type MTM1-63 MTM1-125 MTM1-250
lnmFrameInm(A) 63 125 250
Rated current(A) 10、16、20、25、32、40、50、63 16、20、25、32、40、50、63、80、100、125 100、125、140、160、180、200、225、250
Rated voltage Ue(V) AC400 AC400 AC400 / AC690 AC400 AC400 AC400 / AC690 AC400
Rated insulation voltageUi(V) AC800 AC800 AC800
Number of poles 3、4 3、4 2、3、4 2、3、4 2、3、4 2、3、4 2、3、4 2、3、4
IcukA)
Rated limit short-circuit
breaking capacity level
L M S L M S L M
IcukA)
Rated limit short-circuit
breaking capacity
12 35 12 35 50 12 35 50
Ics(kA)
Rated short-circuit breaking capacity
6 22 6 22 35 6 22 35
Ratedlimitshort circuit
breaking capacity
4500 3000 2500
Operation life(cycle) 8500 7000 6500
Arcing distance (mm) 0、< 50 0、< 50 < 50
Dimensions

Installation size

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Zhejiang Mingtuo Electrical Technology Co., Ltd.
Zhejiang Mingtuo Electrical Technology Co., Ltd.
Zhejiang Mingtuo Electrical Technology Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of low-voltage and medium-voltage circuit breakers. Leveraging Liushi's comprehensive electrical industry chain and local advantages, we provide reliable and safe electrical protection products along with customized solutions for global industrial, commercial, and residential power distribution systems. We are committed to becoming a trusted electrical protection partner for global customers through professional engineering capabilities, consistent manufacturing quality, and flexible customization services.
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