Lauritz Knudsen DU100D, MCCB, 4 Pole, 415V AC, 18kA Breaking Capacity, 100A | Thermal-Magnetic Release| 50/60 Hz | Compact Size | Ics=100% of Icu
Images:
Image 360:
How to video:
Further offers for this product
Incl. Tax
In Stock
No sellers found for this product.
Incl. Tax
Lauritz Knudsen DU100D, MCCB, 4 Pole, 415V AC, 18kA Breaking Capacity, 100A | Thermal-Magnetic Release| 50/60 Hz | Compact Size | Ics=100% of Icu
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen CM90518OOKO from the DU100D series is a reliable 4 Pole Moulded Case Circuit Breaker (MCCB) designed to provide efficient circuit protection, complete electrical isolation, & dependable performance for residential, commercial, & light industrial electrical installations. Rated at 100A & 415V AC, this MCCB safeguards electrical circuits, power distribution systems, & connected equipment against overloads & short-circuit faults while ensuring enhanced operational safety & long-term reliability.
The breaker incorporates an advanced thermal-magnetic trip mechanism that delivers dual-layer protection against electrical faults. The thermal protection element provides time-delayed tripping during overload conditions, helping prevent overheating & damage to cables, conductors, & connected equipment caused by sustained overcurrent situations. The magnetic protection element responds instantaneously to short-circuit faults, rapidly disconnecting the faulted circuit & minimizing the risk of electrical damage & operational interruptions.
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 electrical safety during maintenance procedures, servicing operations, emergency shutdowns, & fault conditions. Full phase & neutral isolation is particularly important in applications where complete electrical disconnection is required for personnel safety & equipment protection.
With a breaking capacity of 18kA, the DU100D MCCB is suitable for installations with low to medium fault levels. This fault interruption capability delivers dependable protection & stable operation while offering a cost-effective solution for standard electrical systems where higher fault interruption capacities are not necessary.
The MCCB is designed for operation on standard 50/60 Hz electrical systems, ensuring compatibility with a wide range of residential, commercial, & light industrial power distribution networks. Its compact & durable construction enables easy installation in distribution boards, switchgear panels, & motor control systems while maximizing panel space utilization.
Manufactured using high-quality insulating materials & precision-engineered operating components, the breaker provides reliable switching performance, excellent mechanical durability, & long service life. Its rugged design ensures dependable operation & long-term protection in everyday applications.
The DU100D series is widely preferred for applications requiring complete phase & neutral isolation, dependable protection, affordability, & consistent performance without the need for high fault interruption ratings.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current flowing through all poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during prolonged overcurrent situations
• Detecting short-circuit faults using a magnetic trip system
• Instantly disconnecting the circuit during fault conditions
• Protecting cables, conductors, & connected equipment from damage
• Isolating all phases & the neutral conductor simultaneously
• Preventing overheating caused by excessive current flow
• Improving electrical safety & system reliability
• Supporting stable power distribution performance
It serves as a critical protection & isolation device for low & medium-capacity electrical distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM90518OOKO
• Series: DU100D
• Pole Configuration: 4 Pole
• Rated Current: 100A
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 18kA
• Trip Unit Type: Thermal Magnetic
• Neutral Pole: Included
• Mounting Type: Panel Mounted
• Primary Function: Overload, Short-Circuit Protection & Circuit Isolation
• Application: Power Distribution & Equipment Protection
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
• Durable contact system
• Efficient arc interruption chamber
• Industrial-grade insulation materials
• Long operational service life
Safety & Protection
• Reliable overload protection
• Instantaneous short-circuit protection
• Complete phase & neutral isolation
• 18kA fault interruption capability
• Enhanced electrical safety
• Improved equipment protection
• Reduced risk of electrical system damage
• Stable & dependable operation
• Reliable power distribution performance
• Cost-effective protection solution
Mounting & Durability
• Easy installation in electrical panels
• Suitable for switchboards & distribution boards
• Compact footprint for efficient panel integration
• Secure mounting arrangement
• Durable construction for everyday operation
• Designed for continuous-duty applications
• Resistant to electrical & mechanical stresses
• Reliable performance in commercial & light industrial environments
• Long operational lifespan
• Minimal maintenance requirements
Application Domains
• Residential Electrical Panels
• Commercial Buildings
• Light Industrial Installations
• Systems Requiring Full Isolation (Phase + Neutral)
• Distribution Boards
• Electrical Switchgear Systems
• Motor Control Systems
• Three-Phase Distribution Networks
• Utility Electrical Systems
• Low to Medium Load Applications
Key Features
• Rated current of 100A
• 4 Pole configuration for three-phase plus neutral systems
• Rated voltage of 415V AC
• Breaking capacity of 18kA
• Thermal-magnetic trip protection
• Reliable overload & short-circuit protection
• Neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Compact & rugged design for panel installation
• Cost-effective protection solution for standard applications
• Reliable operation in low to medium fault-level systems
• Long service life & dependable performance
Applications
• Residential & commercial electrical distribution panels
• Light industrial installations
• Systems requiring full isolation (phase + neutral)
• Switchgear panels & control systems
• Equipment & machinery protection
• General-purpose power distribution
• Utility electrical systems
• Distribution board assemblies
• Electrical safety & isolation applications
• Three-phase power distribution systems
FAQs
1. What is the purpose of a 4 Pole MCCB?
Ans: It protects all three phases & includes a neutral pole for complete circuit isolation & enhanced operational safety.
2. What is the current rating of this MCCB?
Ans: The MCCB has a rated current of 100A.
3. What type of protection does it provide?
Ans: It provides thermal protection against overload conditions & magnetic protection against short-circuit faults.
4. What is the breaking capacity of this MCCB?
Ans: The breaker has a breaking capacity of 18kA for safe interruption of fault currents.
5. Why is neutral isolation important?
Ans: Neutral isolation ensures complete disconnection of the circuit, improving safety during maintenance, servicing, & fault conditions.
6. Where is this MCCB typically used?
Ans: It is commonly used in residential, commercial, & light industrial systems requiring complete phase & neutral isolation.
7. Is this MCCB suitable for three-phase systems with neutral connections?
Ans: Yes, the 4 Pole configuration is specifically designed for three-phase electrical systems that require full phase & neutral isolation.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance activities, reduces fault risks, protects connected equipment, & enhances overall system reliability & operational safety.
Overview
| Rated Operational Current (A) | 100A |
|---|---|
| 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) | 18KA |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 100% |
| 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 CM90518OOKO from the DU100D series is a reliable 4 Pole Moulded Case Circuit Breaker (MCCB) designed to provide efficient circuit protection, complete electrical isolation, & dependable performance for residential, commercial, & light industrial electrical installations. Rated at 100A & 415V AC, this MCCB safeguards electrical circuits, power distribution systems, & connected equipment against overloads & short-circuit faults while ensuring enhanced operational safety & long-term reliability.
The breaker incorporates an advanced thermal-magnetic trip mechanism that delivers dual-layer protection against electrical faults. The thermal protection element provides time-delayed tripping during overload conditions, helping prevent overheating & damage to cables, conductors, & connected equipment caused by sustained overcurrent situations. The magnetic protection element responds instantaneously to short-circuit faults, rapidly disconnecting the faulted circuit & minimizing the risk of electrical damage & operational interruptions.
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 electrical safety during maintenance procedures, servicing operations, emergency shutdowns, & fault conditions. Full phase & neutral isolation is particularly important in applications where complete electrical disconnection is required for personnel safety & equipment protection.
With a breaking capacity of 18kA, the DU100D MCCB is suitable for installations with low to medium fault levels. This fault interruption capability delivers dependable protection & stable operation while offering a cost-effective solution for standard electrical systems where higher fault interruption capacities are not necessary.
The MCCB is designed for operation on standard 50/60 Hz electrical systems, ensuring compatibility with a wide range of residential, commercial, & light industrial power distribution networks. Its compact & durable construction enables easy installation in distribution boards, switchgear panels, & motor control systems while maximizing panel space utilization.
Manufactured using high-quality insulating materials & precision-engineered operating components, the breaker provides reliable switching performance, excellent mechanical durability, & long service life. Its rugged design ensures dependable operation & long-term protection in everyday applications.
The DU100D series is widely preferred for applications requiring complete phase & neutral isolation, dependable protection, affordability, & consistent performance without the need for high fault interruption ratings.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current flowing through all poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during prolonged overcurrent situations
• Detecting short-circuit faults using a magnetic trip system
• Instantly disconnecting the circuit during fault conditions
• Protecting cables, conductors, & connected equipment from damage
• Isolating all phases & the neutral conductor simultaneously
• Preventing overheating caused by excessive current flow
• Improving electrical safety & system reliability
• Supporting stable power distribution performance
It serves as a critical protection & isolation device for low & medium-capacity electrical distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM90518OOKO
• Series: DU100D
• Pole Configuration: 4 Pole
• Rated Current: 100A
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 18kA
• Trip Unit Type: Thermal Magnetic
• Neutral Pole: Included
• Mounting Type: Panel Mounted
• Primary Function: Overload, Short-Circuit Protection & Circuit Isolation
• Application: Power Distribution & Equipment Protection
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
• Durable contact system
• Efficient arc interruption chamber
• Industrial-grade insulation materials
• Long operational service life
Safety & Protection
• Reliable overload protection
• Instantaneous short-circuit protection
• Complete phase & neutral isolation
• 18kA fault interruption capability
• Enhanced electrical safety
• Improved equipment protection
• Reduced risk of electrical system damage
• Stable & dependable operation
• Reliable power distribution performance
• Cost-effective protection solution
Mounting & Durability
• Easy installation in electrical panels
• Suitable for switchboards & distribution boards
• Compact footprint for efficient panel integration
• Secure mounting arrangement
• Durable construction for everyday operation
• Designed for continuous-duty applications
• Resistant to electrical & mechanical stresses
• Reliable performance in commercial & light industrial environments
• Long operational lifespan
• Minimal maintenance requirements
Application Domains
• Residential Electrical Panels
• Commercial Buildings
• Light Industrial Installations
• Systems Requiring Full Isolation (Phase + Neutral)
• Distribution Boards
• Electrical Switchgear Systems
• Motor Control Systems
• Three-Phase Distribution Networks
• Utility Electrical Systems
• Low to Medium Load Applications
Key Features
• Rated current of 100A
• 4 Pole configuration for three-phase plus neutral systems
• Rated voltage of 415V AC
• Breaking capacity of 18kA
• Thermal-magnetic trip protection
• Reliable overload & short-circuit protection
• Neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Compact & rugged design for panel installation
• Cost-effective protection solution for standard applications
• Reliable operation in low to medium fault-level systems
• Long service life & dependable performance
Applications
• Residential & commercial electrical distribution panels
• Light industrial installations
• Systems requiring full isolation (phase + neutral)
• Switchgear panels & control systems
• Equipment & machinery protection
• General-purpose power distribution
• Utility electrical systems
• Distribution board assemblies
• Electrical safety & isolation applications
• Three-phase power distribution systems
FAQs
1. What is the purpose of a 4 Pole MCCB?
Ans: It protects all three phases & includes a neutral pole for complete circuit isolation & enhanced operational safety.
2. What is the current rating of this MCCB?
Ans: The MCCB has a rated current of 100A.
3. What type of protection does it provide?
Ans: It provides thermal protection against overload conditions & magnetic protection against short-circuit faults.
4. What is the breaking capacity of this MCCB?
Ans: The breaker has a breaking capacity of 18kA for safe interruption of fault currents.
5. Why is neutral isolation important?
Ans: Neutral isolation ensures complete disconnection of the circuit, improving safety during maintenance, servicing, & fault conditions.
6. Where is this MCCB typically used?
Ans: It is commonly used in residential, commercial, & light industrial systems requiring complete phase & neutral isolation.
7. Is this MCCB suitable for three-phase systems with neutral connections?
Ans: Yes, the 4 Pole configuration is specifically designed for three-phase electrical systems that require full phase & neutral isolation.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance activities, reduces fault risks, protects connected equipment, & enhances overall system reliability & operational safety.
Overview
| Rated Operational Current (A) | 100A |
|---|---|
| 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) | 18KA |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 100% |
| 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.