Lauritz Knudsen DU250, MCCB, 4 Pole, 415V AC, 36kA Breaking Capacity, 200A | Thermal-Magnetic Release| 50/60 Hz | Compact Size | Spreader Terminals are Included
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Lauritz Knudsen DU250, MCCB, 4 Pole, 415V AC, 36kA Breaking Capacity, 200A | Thermal-Magnetic Release| 50/60 Hz | Compact Size | Spreader Terminals are Included
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen CM98065OONO from the DU250 series is a high-performance 4 Pole Moulded Case Circuit Breaker (MCCB) engineered to provide reliable circuit protection, complete electrical isolation, & enhanced operational safety for industrial, commercial, & infrastructure power distribution systems. Rated at 200A & 415V AC, this MCCB is designed to safeguard electrical circuits, equipment, & power networks against overloads, short-circuit faults, & abnormal electrical conditions while ensuring dependable performance in high-capacity installations.
The breaker incorporates an advanced thermal-magnetic trip unit that delivers dual protection against electrical faults. The thermal protection mechanism provides time-delayed tripping during overload conditions, allowing temporary inrush currents & load fluctuations while protecting cables, conductors, & connected equipment from sustained overcurrent situations. The magnetic protection mechanism provides instantaneous tripping during short-circuit faults, ensuring rapid fault clearance & minimizing damage to electrical infrastructure.
The 4 Pole configuration includes a dedicated neutral pole, enabling simultaneous isolation of all three phases & the neutral conductor. This feature significantly enhances safety during maintenance operations, emergency shutdown procedures, servicing activities, & fault conditions by ensuring complete circuit disconnection. Full phase & neutral isolation is particularly important in installations where personnel safety, equipment protection, & operational reliability are critical requirements.
With a high breaking capacity of 30kA, the DU250 MCCB can safely interrupt substantial fault currents before they impact system performance. This high fault interruption capability improves network stability, protects valuable electrical assets, reduces downtime, & enhances overall reliability in demanding operating environments.
The MCCB is designed for operation on standard 50/60 Hz electrical systems, making it suitable for industrial facilities, commercial buildings, utility installations, infrastructure projects, & high-load power distribution applications worldwide. Its compact dimensions optimize panel space utilization while supporting convenient installation & maintenance.
Manufactured using premium insulating materials & precision-engineered operating mechanisms, the breaker provides excellent mechanical durability, dependable switching performance, & a long operational service life. Its rugged construction ensures reliable operation even under harsh industrial conditions & continuous-duty applications.
The DU250 series is widely trusted in electrical distribution systems, industrial switchboards, motor control centers, utility networks, infrastructure projects, & critical power applications where high current carrying capacity, complete circuit isolation, & dependable electrical protection are essential requirements.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current flowing through all connected poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during prolonged overcurrent situations
• Detecting short-circuit faults through a magnetic trip system
• Instantly disconnecting the circuit during severe fault conditions
• Protecting cables, motors, switchgear, & connected equipment from electrical damage
• Isolating all three phases & the neutral conductor simultaneously
• Improving safety during maintenance & servicing activities
• Supporting stable & reliable power distribution
• Enhancing overall system protection & operational continuity
It serves as a critical protection & isolation device for modern electrical distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM98065OONO
• Series: DU250
• Pole Configuration: 4 Pole
• Rated Current: 200A
• 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
• Industrial Power Distribution Systems
• Electrical Distribution Panels & Switchboards
• Commercial Buildings
• Infrastructure Projects
• Motor Control Centers (MCCs)
• Utility Power Distribution Systems
• Manufacturing Facilities
• Heavy Industrial Installations
• Systems Requiring Full Isolation (Phase + Neutral)
• High-Load Electrical Distribution Networks
Key Features
• Rated current of 200A
• 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
• Neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Heavy-duty & robust construction
• Compact design for panel integration
• Reliable performance in high-load environments
• Long service life & dependable operation
Applications
• Industrial power distribution systems
• Electrical distribution panels & switchboards
• Commercial & infrastructure installations
• Motor Control Centers (MCCs)
• Systems requiring full isolation (phase + neutral)
• High-load & critical electrical applications
• Utility power distribution networks
• Manufacturing facilities
• Industrial automation systems
• Electrical safety & isolation systems
FAQs
1. What is the purpose of a 4 Pole MCCB?
Ans: It provides protection for 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 200A.
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 disconnection of the entire circuit, improving safety during maintenance, servicing, emergency shutdowns, & 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. Where is this MCCB typically used?
Ans: It is commonly installed in industrial panels, switchgear systems, motor control centers, utility installations, infrastructure projects, & high-capacity power distribution networks.
7. Is this MCCB suitable for heavy-duty industrial applications?
Ans: Yes, it is specifically designed for demanding industrial, commercial, infrastructure, & high-load power distribution applications.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance procedures, reduces fault risks, protects critical equipment, & enhances overall system reliability & operational security.
Overview
| Rated Operational Current (A) | 200A |
|---|---|
| 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) | 36kA |
| 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) | 5000 |
| Mechanical Life (Operating Cycles) | 15000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 140 |
| Height(mm) | 165 |
| 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 CM98065OONO from the DU250 series is a high-performance 4 Pole Moulded Case Circuit Breaker (MCCB) engineered to provide reliable circuit protection, complete electrical isolation, & enhanced operational safety for industrial, commercial, & infrastructure power distribution systems. Rated at 200A & 415V AC, this MCCB is designed to safeguard electrical circuits, equipment, & power networks against overloads, short-circuit faults, & abnormal electrical conditions while ensuring dependable performance in high-capacity installations.
The breaker incorporates an advanced thermal-magnetic trip unit that delivers dual protection against electrical faults. The thermal protection mechanism provides time-delayed tripping during overload conditions, allowing temporary inrush currents & load fluctuations while protecting cables, conductors, & connected equipment from sustained overcurrent situations. The magnetic protection mechanism provides instantaneous tripping during short-circuit faults, ensuring rapid fault clearance & minimizing damage to electrical infrastructure.
The 4 Pole configuration includes a dedicated neutral pole, enabling simultaneous isolation of all three phases & the neutral conductor. This feature significantly enhances safety during maintenance operations, emergency shutdown procedures, servicing activities, & fault conditions by ensuring complete circuit disconnection. Full phase & neutral isolation is particularly important in installations where personnel safety, equipment protection, & operational reliability are critical requirements.
With a high breaking capacity of 30kA, the DU250 MCCB can safely interrupt substantial fault currents before they impact system performance. This high fault interruption capability improves network stability, protects valuable electrical assets, reduces downtime, & enhances overall reliability in demanding operating environments.
The MCCB is designed for operation on standard 50/60 Hz electrical systems, making it suitable for industrial facilities, commercial buildings, utility installations, infrastructure projects, & high-load power distribution applications worldwide. Its compact dimensions optimize panel space utilization while supporting convenient installation & maintenance.
Manufactured using premium insulating materials & precision-engineered operating mechanisms, the breaker provides excellent mechanical durability, dependable switching performance, & a long operational service life. Its rugged construction ensures reliable operation even under harsh industrial conditions & continuous-duty applications.
The DU250 series is widely trusted in electrical distribution systems, industrial switchboards, motor control centers, utility networks, infrastructure projects, & critical power applications where high current carrying capacity, complete circuit isolation, & dependable electrical protection are essential requirements.
How the Mechanism Works
The product functions by:
• Continuously monitoring electrical current flowing through all connected poles
• Detecting overload conditions using a thermal trip mechanism
• Providing delayed tripping during prolonged overcurrent situations
• Detecting short-circuit faults through a magnetic trip system
• Instantly disconnecting the circuit during severe fault conditions
• Protecting cables, motors, switchgear, & connected equipment from electrical damage
• Isolating all three phases & the neutral conductor simultaneously
• Improving safety during maintenance & servicing activities
• Supporting stable & reliable power distribution
• Enhancing overall system protection & operational continuity
It serves as a critical protection & isolation device for modern electrical distribution systems.
Electrical Configuration
• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: CM98065OONO
• Series: DU250
• Pole Configuration: 4 Pole
• Rated Current: 200A
• 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
• Industrial Power Distribution Systems
• Electrical Distribution Panels & Switchboards
• Commercial Buildings
• Infrastructure Projects
• Motor Control Centers (MCCs)
• Utility Power Distribution Systems
• Manufacturing Facilities
• Heavy Industrial Installations
• Systems Requiring Full Isolation (Phase + Neutral)
• High-Load Electrical Distribution Networks
Key Features
• Rated current of 200A
• 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
• Neutral pole for complete circuit isolation
• Suitable for 50/60 Hz operation
• Heavy-duty & robust construction
• Compact design for panel integration
• Reliable performance in high-load environments
• Long service life & dependable operation
Applications
• Industrial power distribution systems
• Electrical distribution panels & switchboards
• Commercial & infrastructure installations
• Motor Control Centers (MCCs)
• Systems requiring full isolation (phase + neutral)
• High-load & critical electrical applications
• Utility power distribution networks
• Manufacturing facilities
• Industrial automation systems
• Electrical safety & isolation systems
FAQs
1. What is the purpose of a 4 Pole MCCB?
Ans: It provides protection for 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 200A.
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 disconnection of the entire circuit, improving safety during maintenance, servicing, emergency shutdowns, & 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. Where is this MCCB typically used?
Ans: It is commonly installed in industrial panels, switchgear systems, motor control centers, utility installations, infrastructure projects, & high-capacity power distribution networks.
7. Is this MCCB suitable for heavy-duty industrial applications?
Ans: Yes, it is specifically designed for demanding industrial, commercial, infrastructure, & high-load power distribution applications.
8. What are the benefits of complete phase & neutral isolation?
Ans: Complete isolation improves personnel safety, supports maintenance procedures, reduces fault risks, protects critical equipment, & enhances overall system reliability & operational security.
Overview
| Rated Operational Current (A) | 200A |
|---|---|
| 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) | 36kA |
| 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) | 5000 |
| Mechanical Life (Operating Cycles) | 15000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 140 |
| Height(mm) | 165 |
| 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.