Double Break MCCB
Double Break MCCB
Double Break MCCB

LMM3Z Intelligent MCCB High Breaking 630A

LMM3Z Intelligent MCCB High Breaking 630A

Rated Operational Voltage:AC: 400V, 415V, 690V
Rated Insulation Voltage:1000V
Rated Impulse Withstand Voltage:12kV
Frame Size Current:100A,160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A
Rated Current:16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A
Number of Poles:3P, 4P
Rated Frequency：50Hz, 60Hz
Rated Ultimate Short-Circuit Breaking Capacity：35kA, 50kA, 65kA, 75kA, 85kA, 100kA, 120kA, 150kA
Rated Service Short-Circuit Breaking Capacity:100% of Icu
Total Breaking Time:≤15ms; Contact separation ≤3ms
Applicable Standards:IEC 60947-2
Certifications:CE, CB, CSA, TUV, CCC

LMM3Z MCCB High Breaking Manual

Rated Operational Voltage:AC: 400V, 415V, 690V
Rated Insulation Voltage:1000V
Rated Impulse Withstand Voltage:12kV
Frame Size Current:100A,160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A
Rated Current:16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A
Number of Poles:3P, 4P
Rated Frequency：50Hz, 60Hz
Rated Ultimate Short-Circuit Breaking Capacity：35kA, 50kA, 65kA, 75kA, 85kA, 100kA, 120kA, 150kA
Rated Service Short-Circuit Breaking Capacity:100% of Icu
Total Breaking Time:≤15ms; Contact separation ≤3ms
Applicable Standards:IEC 60947-2
Certifications:CE, CB, CSA, TUV, CCC

LMM3Z MCCB High Breaking Manual

LMM3z Intelligent MCCB combines robust short-circuit protection with advanced digital monitoring, designed for low-voltage systems demanding high safety and efficiency. Built to IEC 60947-2 standards, this 3-pole, 100A-rated breaker delivers stable performance in factories, buildings, and renewable energy projects worldwide.

Core Advantages

✅ Security and reliability

  • Dual breaking points for precise, fast response to overloads and short circuits
  • Arc-flash mitigation design minimizes fire hazards in high-current environments
  • 100% Ics rating ensures full system recovery after fault clearing
✅ Smart, Adjustable Protection
  • Digital controller lets you customize trip parameters (current/time curves)
  • LCD display provides real-time system data and fault diagnostics
  • Built-in alarm thresholds for early warning (over 90%/105% current)
  • IR
✅ Built to Last in Tough Conditions
  • High-strength, flame-retardant housing withstands harsh industrial environments
  • 50Hz AC operation with stable performance across 415V to 690V networks
  • Environmentally friendly materials with low maintenance requirements
✅ User-Friendly Operation
  • Clear ON/OFF toggle with visible position indicator
  • Simple front-panel buttons for setup and monitoring
  • Modular design compatible with standard low-voltage switchgear

 

Technical Data

Type LMM3Z-100 LMM3Z-160 LMM3Z-250
Number of poles 3P/4P 3P/4P 3P/4P
Shell frame current 100 160 250
Rated current TM/MA 12.5/16/20/25/32/

40/50/63/80/100

 16/20/25/32/40/50/

63/80/100/125/160

 100/160/180/

200/225/250
Electronic 100 160 250
Rated insulation voltage Ui(V) 1000 1000 1000
Rated impulse withstand voltage Uimp(kV) 8 8 8
Rated voltage Ue(V) AC 400/415/690 50/60Hz AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz
Flying arc distance(mm) 0
Short circuit breaking capability level N L M H S N L M H S N L M H S
Rated limit short circuit breaking capacity Icu(kA) AC 400/415V 35 50 85 100 150 35 50 85 100 150 35 50 85 100 150
AC 500V / 35 50 60 65 / 35 50 60 65 / 35 50 60 65
AC 690V / 6 8 10 / 6 8 10 / 6 8 10
Usage category A A A
Rated running short circuit breaking capacity Ics(kA) AC 400/415V 35 50 85 100 150 35 50 85 100 150 35 50 85 100 150
AC 500V / 35 50 60 65 / 35 50 60 65 / 35 50 60 65
AC 690V / 6 8 10 / 6 8 10 / 6 8 10
Rated short time resitant current Icw(kA)(1s) Type of stripper 3(micrologic 5.0A) 3(micrologic 5.0A) 3(micrologic 5.0A)
Remaining current protection Additional residual current protection module
Electrical life tese AC415V 10000 8000 8000
AC690V 1500 1500 1500
Mechanical life 20000 20000 20000
Type LMM3Z-400 LMM3Z-630 LMM3Z-1250/1600
Number of poles 3P/4P 3P/4P 3P/4P
Shell frame current 400 630 1250/1600
Rated current TM/MA 250/315/350/400 400/500/600 /
Electronic 400 630 630/800/1000/1250/1600
Rated insulation voltage Ui(V) 1000 1000 1000
Rated impulse withstand voltage Uimp(kV) 8 8 8
Rated voltage Ue(V) AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz
Flying arc distance(mm) 0
Short circuit breaking capability level L M H S L M H S M H
Rated limit short circuit breaking capacity Icu(kA) AC 400/415V 50 85 100 150 50 85 100 150 50 65
AC 500V 35 50 60 65 35 50 60 65 35 45
AC 690V 10 15 20 10 15 20 20 30
Rated running short circuit breaking capacity Ics(kA) AC 400/415V 50 85 100 150 50 85 100 150 50 65
AC 500V 35 50 60 65 35 50 60 65 35 45
AC 690V 10 15 20 10 15 20 20 30
Working with categories TM/MA micrologic 2/3 A A A
micrologic 5.0 B B B
Rated short time resitant current Icw(kA)(1s) 5(micrologic 5.0A) 5(micrologic 5.0A) 20(micrologic 5.0A)
Remaining current protection Additional residual current protection module
Electrical life tese AC415V 6000 5000 1500
AC690V 1000 1000 1000
Mechanical life 10000 10000 10000

LMM3z Intelligent MCCB combines robust short-circuit protection with advanced digital monitoring, designed for low-voltage systems demanding high safety and efficiency. Built to IEC 60947-2 standards, this 3-pole, 100A-rated breaker delivers stable performance in factories, buildings, and renewable energy projects worldwide.

Core Advantages

✅ Security and reliability

  • Dual breaking points for precise, fast response to overloads and short circuits
  • Arc-flash mitigation design minimizes fire hazards in high-current environments
  • 100% Ics rating ensures full system recovery after fault clearing
✅ Smart, Adjustable Protection
  • Digital controller lets you customize trip parameters (current/time curves)
  • LCD display provides real-time system data and fault diagnostics
  • Built-in alarm thresholds for early warning (over 90%/105% current)
  • IR
✅ Built to Last in Tough Conditions
  • High-strength, flame-retardant housing withstands harsh industrial environments
  • 50Hz AC operation with stable performance across 415V to 690V networks
  • Environmentally friendly materials with low maintenance requirements
✅ User-Friendly Operation
  • Clear ON/OFF toggle with visible position indicator
  • Simple front-panel buttons for setup and monitoring
  • Modular design compatible with standard low-voltage switchgear

 

Technical Data

Type LMM3Z-100 LMM3Z-160 LMM3Z-250
Number of poles 3P/4P 3P/4P 3P/4P
Shell frame current 100 160 250
Rated current TM/MA 12.5/16/20/25/32/

40/50/63/80/100

 16/20/25/32/40/50/

63/80/100/125/160

 100/160/180/

200/225/250
Electronic 100 160 250
Rated insulation voltage Ui(V) 1000 1000 1000
Rated impulse withstand voltage Uimp(kV) 8 8 8
Rated voltage Ue(V) AC 400/415/690 50/60Hz AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz
Flying arc distance(mm) 0
Short circuit breaking capability level N L M H S N L M H S N L M H S
Rated limit short circuit breaking capacity Icu(kA) AC 400/415V 35 50 85 100 150 35 50 85 100 150 35 50 85 100 150
AC 500V / 35 50 60 65 / 35 50 60 65 / 35 50 60 65
AC 690V / 6 8 10 / 6 8 10 / 6 8 10
Usage category A A A
Rated running short circuit breaking capacity Ics(kA) AC 400/415V 35 50 85 100 150 35 50 85 100 150 35 50 85 100 150
AC 500V / 35 50 60 65 / 35 50 60 65 / 35 50 60 65
AC 690V / 6 8 10 / 6 8 10 / 6 8 10
Rated short time resitant current Icw(kA)(1s) Type of stripper 3(micrologic 5.0A) 3(micrologic 5.0A) 3(micrologic 5.0A)
Remaining current protection Additional residual current protection module
Electrical life tese AC415V 10000 8000 8000
AC690V 1500 1500 1500
Mechanical life 20000 20000 20000
Type LMM3Z-400 LMM3Z-630 LMM3Z-1250/1600
Number of poles 3P/4P 3P/4P 3P/4P
Shell frame current 400 630 1250/1600
Rated current TM/MA 250/315/350/400 400/500/600 /
Electronic 400 630 630/800/1000/1250/1600
Rated insulation voltage Ui(V) 1000 1000 1000
Rated impulse withstand voltage Uimp(kV) 8 8 8
Rated voltage Ue(V) AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz AC 400/415/500/690 50/60Hz
Flying arc distance(mm) 0
Short circuit breaking capability level L M H S L M H S M H
Rated limit short circuit breaking capacity Icu(kA) AC 400/415V 50 85 100 150 50 85 100 150 50 65
AC 500V 35 50 60 65 35 50 60 65 35 45
AC 690V 10 15 20 10 15 20 20 30
Rated running short circuit breaking capacity Ics(kA) AC 400/415V 50 85 100 150 50 85 100 150 50 65
AC 500V 35 50 60 65 35 50 60 65 35 45
AC 690V 10 15 20 10 15 20 20 30
Working with categories TM/MA micrologic 2/3 A A A
micrologic 5.0 B B B
Rated short time resitant current Icw(kA)(1s) 5(micrologic 5.0A) 5(micrologic 5.0A) 20(micrologic 5.0A)
Remaining current protection Additional residual current protection module
Electrical life tese AC415V 6000 5000 1500
AC690V 1000 1000 1000
Mechanical life 10000 10000 10000

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