Lauritz Knudsen DU100H, MCCB, 4 Pole, 415V AC, 30kA Breaking Capacity, 80A | Thermal-Magnetic Release| 50/60 Hz | Compact Size
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Lauritz Knudsen DU100H, MCCB, 4 Pole, 415V AC, 30kA Breaking Capacity, 80A | Thermal-Magnetic Release| 50/60 Hz | Compact Size
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen CM97933OOJ2 from the DU100H series is a high-performance 4 Pole Moulded Case Circuit Breaker (MCCB) designed to provide reliable circuit protection, complete electrical isolation, & enhanced operational safety for industrial, commercial, & infrastructure power distribution systems. Rated at 80A & 415V AC, this MCCB delivers dependable protection against overloads, short-circuit faults, & abnormal electrical conditions while ensuring safe & efficient operation of critical electrical installations.
The breaker incorporates an advanced thermal-magnetic trip mechanism that combines overload & short-circuit protection within a single compact unit. The thermal trip element provides time-delayed tripping during overload conditions, helping protect conductors & connected equipment from sustained overcurrent situations. The magnetic trip element delivers instantaneous tripping during short-circuit faults, rapidly isolating faults & minimizing damage to electrical networks & equipment.
The 4 Pole configuration includes a dedicated neutral pole, enabling complete isolation of all three phases along with the neutral conductor. This feature significantly improves safety during maintenance activities, emergency shutdown procedures, & fault conditions by ensuring total circuit disconnection. Complete phase & neutral isolation is essential in installations where safety, reliability, & compliance requirements demand full power isolation.
With a high breaking capacity of 30kA, the DU100H MCCB can safely interrupt substantial fault currents before they affect system performance. This high interruption capability improves electrical system stability, protects critical infrastructure, minimizes downtime, & enhances network reliability even in demanding operating environments.
The MCCB is designed for operation in standard 50/60 Hz power systems & is suitable for industrial plants, commercial facilities, infrastructure projects, & utility networks worldwide. Its compact dimensions support efficient panel utilization while simplifying installation & maintenance procedures.
Manufactured using premium insulating materials & precision-engineered components, the breaker offers excellent mechanical durability, dependable switching performance, & long operational life. Its rugged construction ensures consistent protection & reliable performance even in harsh industrial conditions.
The DU100H series is widely trusted in switchboards, motor control centers, distribution panels, commercial buildings, manufacturing facilities, & infrastructure projects where higher current handling, complete isolation capability, & dependable circuit protection are critical.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current through all connected poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during sustained overcurrent situations
• Detecting short-circuit faults using a magnetic trip system
• Instantly disconnecting the circuit during severe fault conditions
• Protecting cables, motors, switchgear, & connected loads from damage
• Isolating all phases & the neutral conductor simultaneously
• Improving safety during maintenance & servicing activities
• Supporting stable & reliable power distribution
• Enhancing electrical system protection & operational continuity
It serves as a critical protection & isolation device for modern electrical power distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM97933OOJ2
• Series: DU100H
• Pole Configuration: 4 Pole
• Rated Current: 80A
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 30kA
• Trip Unit Type: Thermal Magnetic
• Neutral Pole: Included
• Mounting Type: Panel Mounted
• Primary Function: Overload, Short-Circuit Protection & Circuit Isolation
• Application: Electrical Power Distribution Systems
Construction & Design
Designed for durability & dependable operation:
• Compact MCCB construction
• High-strength moulded insulating enclosure
• Precision-engineered operating mechanism
• Thermal-magnetic trip technology
• Four-pole switching architecture
• Integrated neutral pole design
• Heavy-duty contact system
• Advanced arc interruption chamber
• Industrial-grade insulation materials
• Long operational service life
Safety & Protection
• Reliable overload protection
• Instantaneous short-circuit protection
• Complete phase & neutral isolation
• High 30kA fault interruption capability
• Enhanced electrical safety
• Improved protection for connected equipment
• Reduced risk of electrical system damage
• Stable & dependable operation
• Increased power distribution reliability
• Extended equipment lifespan
Mounting & Durability
• Easy installation in electrical panels
• Suitable for switchboards & distribution boards
• Compact footprint for efficient panel integration
• Secure mounting arrangement
• Durable industrial-grade construction
• Designed for continuous-duty operation
• Resistant to electrical & mechanical stress
• Reliable performance in demanding environments
• Long operational lifespan
• Minimal maintenance requirements
Application Domains
• Electrical Distribution Panels
• Industrial Installations
• Commercial Buildings
• Infrastructure Projects
• Utility Power Systems
• Motor Control Centers (MCCs)
• Distribution Boards
• Switchgear Assemblies
• Systems Requiring Neutral Isolation
• High-Load Power Distribution Networks
Key Features
• Rated current of 80A
• 4 Pole configuration for three-phase plus neutral systems
• Rated voltage of 415V AC
• High breaking capacity of 30kA
• Thermal-magnetic trip protection
• Reliable overload & short-circuit protection
• Integrated neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Compact & durable design
• Easy panel integration
• Industrial-grade reliability & performance
• Long service life & dependable operation
Applications
• Electrical distribution panels
• Industrial & commercial installations
• Systems requiring full isolation (phase + neutral)
• Motor Control Centers (MCCs)
• Infrastructure & utility systems
• High-load power distribution applications
• Building power distribution networks
• Switchboards & control panels
• Equipment protection systems
• Electrical safety & isolation installations
FAQs
1. What is the advantage of a 4 Pole MCCB?
Ans: It provides protection for three phases & includes a neutral pole, ensuring complete circuit isolation & enhanced safety.
2. What is the current rating of this MCCB?
Ans: The MCCB has a rated current of 80A.
3. What type of protection does it provide?
Ans: It provides thermal protection against overload conditions & magnetic protection against short-circuit faults.
4. Why is neutral isolation important?
Ans: Neutral isolation ensures complete circuit disconnection, improving safety during maintenance, servicing, & fault conditions.
5. What is the breaking capacity of this MCCB?
Ans: The breaker has a high breaking capacity of 30kA for safe interruption of substantial fault currents.
6. Is it suitable for three-phase systems with neutral connections?
Ans: Yes, the 4 Pole configuration is specifically designed for three-phase systems that require complete phase & neutral isolation.
7. Where is this MCCB typically used?
Ans: It is commonly installed in industrial panels, commercial installations, distribution boards, infrastructure projects, utility systems, & applications requiring full isolation.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance procedures, reduces fault risks, protects sensitive equipment, & enhances overall system reliability & operational security.
Overview
| Rated Operational Current (A) | 80A |
|---|---|
| No. of Poles | 4P |
| Rated Operational voltage (Ue) | 415V AC |
| Rated Insulation Voltage Ui (V) | 800 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Operational Frequency (Hz) | 50/60 Hz |
| Release Type | Thermal Magnetic |
| Rated Short Circuit Breaking capacity Icu(kA) | 30kA |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 50% |
| Ambient temperature | -5°C to 55°C |
| Conformance to Standards | IS 60947-2, IEC 60947-2 & EN 60947-2 |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 8000 |
| Mechanical Life (Operating Cycles) | 40000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 100 |
| Height(mm) | 130 |
| Depth(mm) | 60 |
| Discount Percentage | Between 0-10 % |
Documents
Warranty
- All products listed in the price list are covered by a warranty against manufacturing defects for a period of 18* months from the date of purchase.
- For Lauritz Knudsen MCBs & Isolators mounted inside Lauritz Knudsen Distribution Boards, an extended warranty of 5 years is provided.
- In the event of a defect due to faulty workmanship or other associated reasons, the manufacturer will, at its discretion, remedy the defect or replace the faulty parts or the entire product as soon as possible, free of cost.
- This warranty is subject to proper usage and efficient maintenance and does not cover defects arising from fire, accidents, inefficient maintenance, faulty operation, or deliberate or accidental damage.
- The warranty does not cover damage to power electronic components such as thyristors & IGBTs, which primarily fail due to over-temperature or over-voltage. Users must take adequate precautions to eliminate such conditions.
- The manufacturer shall not be responsible or liable for any special, incidental, social, or consequential losses (including loss of profits), punitive damages, injury, or damages of any kind solely attributable to defect or failure of its products.
- The manufacturer shall not be liable in any manner for issues related to or failure in the performance of any other equipment to which the product is connected.
Reviews
Description
About the Product
The Lauritz Knudsen CM97933OOJ2 from the DU100H series is a high-performance 4 Pole Moulded Case Circuit Breaker (MCCB) designed to provide reliable circuit protection, complete electrical isolation, & enhanced operational safety for industrial, commercial, & infrastructure power distribution systems. Rated at 80A & 415V AC, this MCCB delivers dependable protection against overloads, short-circuit faults, & abnormal electrical conditions while ensuring safe & efficient operation of critical electrical installations.
The breaker incorporates an advanced thermal-magnetic trip mechanism that combines overload & short-circuit protection within a single compact unit. The thermal trip element provides time-delayed tripping during overload conditions, helping protect conductors & connected equipment from sustained overcurrent situations. The magnetic trip element delivers instantaneous tripping during short-circuit faults, rapidly isolating faults & minimizing damage to electrical networks & equipment.
The 4 Pole configuration includes a dedicated neutral pole, enabling complete isolation of all three phases along with the neutral conductor. This feature significantly improves safety during maintenance activities, emergency shutdown procedures, & fault conditions by ensuring total circuit disconnection. Complete phase & neutral isolation is essential in installations where safety, reliability, & compliance requirements demand full power isolation.
With a high breaking capacity of 30kA, the DU100H MCCB can safely interrupt substantial fault currents before they affect system performance. This high interruption capability improves electrical system stability, protects critical infrastructure, minimizes downtime, & enhances network reliability even in demanding operating environments.
The MCCB is designed for operation in standard 50/60 Hz power systems & is suitable for industrial plants, commercial facilities, infrastructure projects, & utility networks worldwide. Its compact dimensions support efficient panel utilization while simplifying installation & maintenance procedures.
Manufactured using premium insulating materials & precision-engineered components, the breaker offers excellent mechanical durability, dependable switching performance, & long operational life. Its rugged construction ensures consistent protection & reliable performance even in harsh industrial conditions.
The DU100H series is widely trusted in switchboards, motor control centers, distribution panels, commercial buildings, manufacturing facilities, & infrastructure projects where higher current handling, complete isolation capability, & dependable circuit protection are critical.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current through all connected poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during sustained overcurrent situations
• Detecting short-circuit faults using a magnetic trip system
• Instantly disconnecting the circuit during severe fault conditions
• Protecting cables, motors, switchgear, & connected loads from damage
• Isolating all phases & the neutral conductor simultaneously
• Improving safety during maintenance & servicing activities
• Supporting stable & reliable power distribution
• Enhancing electrical system protection & operational continuity
It serves as a critical protection & isolation device for modern electrical power distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM97933OOJ2
• Series: DU100H
• Pole Configuration: 4 Pole
• Rated Current: 80A
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 30kA
• Trip Unit Type: Thermal Magnetic
• Neutral Pole: Included
• Mounting Type: Panel Mounted
• Primary Function: Overload, Short-Circuit Protection & Circuit Isolation
• Application: Electrical Power Distribution Systems
Construction & Design
Designed for durability & dependable operation:
• Compact MCCB construction
• High-strength moulded insulating enclosure
• Precision-engineered operating mechanism
• Thermal-magnetic trip technology
• Four-pole switching architecture
• Integrated neutral pole design
• Heavy-duty contact system
• Advanced arc interruption chamber
• Industrial-grade insulation materials
• Long operational service life
Safety & Protection
• Reliable overload protection
• Instantaneous short-circuit protection
• Complete phase & neutral isolation
• High 30kA fault interruption capability
• Enhanced electrical safety
• Improved protection for connected equipment
• Reduced risk of electrical system damage
• Stable & dependable operation
• Increased power distribution reliability
• Extended equipment lifespan
Mounting & Durability
• Easy installation in electrical panels
• Suitable for switchboards & distribution boards
• Compact footprint for efficient panel integration
• Secure mounting arrangement
• Durable industrial-grade construction
• Designed for continuous-duty operation
• Resistant to electrical & mechanical stress
• Reliable performance in demanding environments
• Long operational lifespan
• Minimal maintenance requirements
Application Domains
• Electrical Distribution Panels
• Industrial Installations
• Commercial Buildings
• Infrastructure Projects
• Utility Power Systems
• Motor Control Centers (MCCs)
• Distribution Boards
• Switchgear Assemblies
• Systems Requiring Neutral Isolation
• High-Load Power Distribution Networks
Key Features
• Rated current of 80A
• 4 Pole configuration for three-phase plus neutral systems
• Rated voltage of 415V AC
• High breaking capacity of 30kA
• Thermal-magnetic trip protection
• Reliable overload & short-circuit protection
• Integrated neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Compact & durable design
• Easy panel integration
• Industrial-grade reliability & performance
• Long service life & dependable operation
Applications
• Electrical distribution panels
• Industrial & commercial installations
• Systems requiring full isolation (phase + neutral)
• Motor Control Centers (MCCs)
• Infrastructure & utility systems
• High-load power distribution applications
• Building power distribution networks
• Switchboards & control panels
• Equipment protection systems
• Electrical safety & isolation installations
FAQs
1. What is the advantage of a 4 Pole MCCB?
Ans: It provides protection for three phases & includes a neutral pole, ensuring complete circuit isolation & enhanced safety.
2. What is the current rating of this MCCB?
Ans: The MCCB has a rated current of 80A.
3. What type of protection does it provide?
Ans: It provides thermal protection against overload conditions & magnetic protection against short-circuit faults.
4. Why is neutral isolation important?
Ans: Neutral isolation ensures complete circuit disconnection, improving safety during maintenance, servicing, & fault conditions.
5. What is the breaking capacity of this MCCB?
Ans: The breaker has a high breaking capacity of 30kA for safe interruption of substantial fault currents.
6. Is it suitable for three-phase systems with neutral connections?
Ans: Yes, the 4 Pole configuration is specifically designed for three-phase systems that require complete phase & neutral isolation.
7. Where is this MCCB typically used?
Ans: It is commonly installed in industrial panels, commercial installations, distribution boards, infrastructure projects, utility systems, & applications requiring full isolation.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance procedures, reduces fault risks, protects sensitive equipment, & enhances overall system reliability & operational security.
Overview
| Rated Operational Current (A) | 80A |
|---|---|
| No. of Poles | 4P |
| Rated Operational voltage (Ue) | 415V AC |
| Rated Insulation Voltage Ui (V) | 800 V |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Operational Frequency (Hz) | 50/60 Hz |
| Release Type | Thermal Magnetic |
| Rated Short Circuit Breaking capacity Icu(kA) | 30kA |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 50% |
| Ambient temperature | -5°C to 55°C |
| Conformance to Standards | IS 60947-2, IEC 60947-2 & EN 60947-2 |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 8000 |
| Mechanical Life (Operating Cycles) | 40000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 100 |
| Height(mm) | 130 |
| Depth(mm) | 60 |
| Discount Percentage | Between 0-10 % |
Documents
Warranty
- All products listed in the price list are covered by a warranty against manufacturing defects for a period of 18* months from the date of purchase.
- For Lauritz Knudsen MCBs & Isolators mounted inside Lauritz Knudsen Distribution Boards, an extended warranty of 5 years is provided.
- In the event of a defect due to faulty workmanship or other associated reasons, the manufacturer will, at its discretion, remedy the defect or replace the faulty parts or the entire product as soon as possible, free of cost.
- This warranty is subject to proper usage and efficient maintenance and does not cover defects arising from fire, accidents, inefficient maintenance, faulty operation, or deliberate or accidental damage.
- The warranty does not cover damage to power electronic components such as thyristors & IGBTs, which primarily fail due to over-temperature or over-voltage. Users must take adequate precautions to eliminate such conditions.
- The manufacturer shall not be responsible or liable for any special, incidental, social, or consequential losses (including loss of profits), punitive damages, injury, or damages of any kind solely attributable to defect or failure of its products.
- The manufacturer shall not be liable in any manner for issues related to or failure in the performance of any other equipment to which the product is connected.