Lauritz Knudsen DN3-630N, MCCB, 4 Pole, 415V AC, 50kA Breaking Capacity, 630A | Thermal-Magnetic Release | IP40 Protection
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Lauritz Knudsen DN3-630N, MCCB, 4 Pole, 415V AC, 50kA Breaking Capacity, 630A | Thermal-Magnetic Release | IP40 Protection
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen DN3-630N MCCB 630A 4 Pole 415V AC 50kA Thermal Magnetic is a heavy-duty molded case circuit breaker engineered to deliver advanced protection for high-capacity electrical distribution systems. Designed to safely interrupt overload & high short-circuit fault currents, it helps protect electrical equipment, transformers, motors, switchboards, power cables, & critical distribution networks from damage caused by abnormal operating conditions.
Featuring a 630A rated current, 4 Pole configuration, 415V AC operating voltage, & a high 50kA short-circuit breaking capacity, this MCCB is ideal for industrial facilities, utility installations, commercial buildings, infrastructure projects, & large-scale power distribution systems where elevated fault levels may occur & complete phase-neutral isolation is required.
The integrated thermal magnetic trip mechanism combines thermal overload protection & instantaneous magnetic short-circuit protection, ensuring rapid fault interruption, reliable protection, & enhanced operational safety.
How the Mechanism Works
The product functions by:
• Protecting circuits against overload conditions
• Interrupting high short-circuit fault currents
• Automatically disconnecting faulty circuits
• Protecting motors, transformers, & power cables
• Providing simultaneous phase & neutral isolation
• Supporting safe electrical distribution
• Preventing equipment damage from fault currents
• Improving electrical system reliability
It serves as a critical protection device for maintaining safe & efficient operation of high-capacity electrical systems.
Electrical Configuration
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: DN3-630N
• Current Rating: 630A
• Pole Configuration: 4 Pole
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 50kA
• Trip Type: Thermal Magnetic
• Application: Circuit Protection
• Suitable For: Three-Phase Electrical Systems with Neutral Protection
• Catalog Number: CM94104OOT1OG
Construction & Design
Designed for high-performance protection:
• Thermal magnetic trip mechanism
• 630A rated current capacity
• 4-pole protection configuration
• 50kA short-circuit breaking capability
• Durable molded case construction
• Reliable contact system
• Industrial-grade mechanical design
• Long operational lifespan
Safety & Protection
• Reliable overload protection
• Very high fault interruption capability
• Fast short-circuit protection
• Enhanced electrical safety
• Improved equipment protection
• Complete phase & neutral isolation
• Dependable fault-clearing performance
• Long-term operational reliability
Mounting & Durability
• Suitable for electrical distribution panels
• Compatible with industrial & commercial installations
• Rugged molded case construction
• High mechanical endurance
• High-quality manufacturing standards
• Designed for continuous operation
• Minimal maintenance requirements
• Suitable for demanding operating conditions
Application Domains
• Industrial Facilities
• Manufacturing Plants
• Commercial Buildings
• Utility Installations
• Infrastructure Projects
• Data Centers
• Electrical Distribution Panels
• Power Management Systems
Key Features
• DN3-630N MCCB series
• 630A current rating
• 4 Pole configuration
• 415V AC operation
• 50kA breaking capacity
• Thermal magnetic protection
• Overload protection
• Short-circuit protection
• Neutral isolation capability
• Industrial-grade construction
Applications
• Three-phase power distribution
• Main incomer protection
• Industrial machinery protection
• Transformer protection
• Commercial electrical systems
• Utility power networks
• Infrastructure electrical projects
• Equipment circuit protection
FAQs
1. What is the CM94104OOT1OG MCCB used for?
Ans: It is used for protecting electrical circuits & connected equipment against overloads & short circuits in high-capacity three-phase electrical systems requiring neutral protection.
2. What is the current rating of this MCCB?
Ans: The MCCB has a 630A current rating.
3. What does 4 Pole mean?
Ans: A 4 Pole MCCB protects & switches all three phase conductors along with the neutral conductor.
4. What is the breaking capacity of this MCCB?
Ans: It offers a 50kA short-circuit breaking capacity, enabling safe interruption of very high fault currents.
5. What type of protection does this MCCB provide?
Ans: It provides thermal overload protection & magnetic short-circuit protection through its thermal magnetic trip mechanism.
6. Where can this MCCB be installed?
Ans: It can be installed in electrical distribution boards, industrial switchboards, commercial facilities, utility installations, & infrastructure projects.
7. Why choose a 4 Pole MCCB?
Ans: A 4 Pole MCCB provides complete isolation of all phases & neutral, improving electrical safety, operational reliability, & maintenance efficiency.
8. Does it require frequent maintenance?
Ans: No, its durable molded case construction & reliable internal mechanism ensure long-term, low-maintenance operation under normal operating conditions.
Overview
| Rated Operational Current | 630 |
|---|---|
| Mechanical Life (No. of operating cycles) | 15000 |
| No. of Poles | 4P |
| Rated Operational voltage (Ue) | 415V AC |
| Rated Insulation Voltage Ui (V) | 800 V |
| Conformance to Standards | IEC 60947-1, EN 60947-1, IS/IEC 60947-1 IEC 60947-2, EN 60947-2, IS/IEC 60947-2 IEC 60947-3, EN 60947-3, IS/IEC 60947-3 IEC 60947-4, EN 60947-4, IS/IEC 60947-4 |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Operational Frequency (Hz) | 50/60 Hz |
| Release Type | TM |
| Rated Short Circuit Breaking capacity Icu(kA) | DN3-630N MCCB 630 4P 415V AC 50kA Thermal Magnetic 50/60 Hz |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 50kA |
| Ambient temperature | -5°C to 55°C |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 4000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 183.5 |
| Height(mm) | 266 |
| Depth(mm) | 111.5 |
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 DN3-630N MCCB 630A 4 Pole 415V AC 50kA Thermal Magnetic is a heavy-duty molded case circuit breaker engineered to deliver advanced protection for high-capacity electrical distribution systems. Designed to safely interrupt overload & high short-circuit fault currents, it helps protect electrical equipment, transformers, motors, switchboards, power cables, & critical distribution networks from damage caused by abnormal operating conditions.
Featuring a 630A rated current, 4 Pole configuration, 415V AC operating voltage, & a high 50kA short-circuit breaking capacity, this MCCB is ideal for industrial facilities, utility installations, commercial buildings, infrastructure projects, & large-scale power distribution systems where elevated fault levels may occur & complete phase-neutral isolation is required.
The integrated thermal magnetic trip mechanism combines thermal overload protection & instantaneous magnetic short-circuit protection, ensuring rapid fault interruption, reliable protection, & enhanced operational safety.
How the Mechanism Works
The product functions by:
• Protecting circuits against overload conditions
• Interrupting high short-circuit fault currents
• Automatically disconnecting faulty circuits
• Protecting motors, transformers, & power cables
• Providing simultaneous phase & neutral isolation
• Supporting safe electrical distribution
• Preventing equipment damage from fault currents
• Improving electrical system reliability
It serves as a critical protection device for maintaining safe & efficient operation of high-capacity electrical systems.
Electrical Configuration
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: DN3-630N
• Current Rating: 630A
• Pole Configuration: 4 Pole
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 50kA
• Trip Type: Thermal Magnetic
• Application: Circuit Protection
• Suitable For: Three-Phase Electrical Systems with Neutral Protection
• Catalog Number: CM94104OOT1OG
Construction & Design
Designed for high-performance protection:
• Thermal magnetic trip mechanism
• 630A rated current capacity
• 4-pole protection configuration
• 50kA short-circuit breaking capability
• Durable molded case construction
• Reliable contact system
• Industrial-grade mechanical design
• Long operational lifespan
Safety & Protection
• Reliable overload protection
• Very high fault interruption capability
• Fast short-circuit protection
• Enhanced electrical safety
• Improved equipment protection
• Complete phase & neutral isolation
• Dependable fault-clearing performance
• Long-term operational reliability
Mounting & Durability
• Suitable for electrical distribution panels
• Compatible with industrial & commercial installations
• Rugged molded case construction
• High mechanical endurance
• High-quality manufacturing standards
• Designed for continuous operation
• Minimal maintenance requirements
• Suitable for demanding operating conditions
Application Domains
• Industrial Facilities
• Manufacturing Plants
• Commercial Buildings
• Utility Installations
• Infrastructure Projects
• Data Centers
• Electrical Distribution Panels
• Power Management Systems
Key Features
• DN3-630N MCCB series
• 630A current rating
• 4 Pole configuration
• 415V AC operation
• 50kA breaking capacity
• Thermal magnetic protection
• Overload protection
• Short-circuit protection
• Neutral isolation capability
• Industrial-grade construction
Applications
• Three-phase power distribution
• Main incomer protection
• Industrial machinery protection
• Transformer protection
• Commercial electrical systems
• Utility power networks
• Infrastructure electrical projects
• Equipment circuit protection
FAQs
1. What is the CM94104OOT1OG MCCB used for?
Ans: It is used for protecting electrical circuits & connected equipment against overloads & short circuits in high-capacity three-phase electrical systems requiring neutral protection.
2. What is the current rating of this MCCB?
Ans: The MCCB has a 630A current rating.
3. What does 4 Pole mean?
Ans: A 4 Pole MCCB protects & switches all three phase conductors along with the neutral conductor.
4. What is the breaking capacity of this MCCB?
Ans: It offers a 50kA short-circuit breaking capacity, enabling safe interruption of very high fault currents.
5. What type of protection does this MCCB provide?
Ans: It provides thermal overload protection & magnetic short-circuit protection through its thermal magnetic trip mechanism.
6. Where can this MCCB be installed?
Ans: It can be installed in electrical distribution boards, industrial switchboards, commercial facilities, utility installations, & infrastructure projects.
7. Why choose a 4 Pole MCCB?
Ans: A 4 Pole MCCB provides complete isolation of all phases & neutral, improving electrical safety, operational reliability, & maintenance efficiency.
8. Does it require frequent maintenance?
Ans: No, its durable molded case construction & reliable internal mechanism ensure long-term, low-maintenance operation under normal operating conditions.
Overview
| Rated Operational Current | 630 |
|---|---|
| Mechanical Life (No. of operating cycles) | 15000 |
| No. of Poles | 4P |
| Rated Operational voltage (Ue) | 415V AC |
| Rated Insulation Voltage Ui (V) | 800 V |
| Conformance to Standards | IEC 60947-1, EN 60947-1, IS/IEC 60947-1 IEC 60947-2, EN 60947-2, IS/IEC 60947-2 IEC 60947-3, EN 60947-3, IS/IEC 60947-3 IEC 60947-4, EN 60947-4, IS/IEC 60947-4 |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Operational Frequency (Hz) | 50/60 Hz |
| Release Type | TM |
| Rated Short Circuit Breaking capacity Icu(kA) | DN3-630N MCCB 630 4P 415V AC 50kA Thermal Magnetic 50/60 Hz |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 50kA |
| Ambient temperature | -5°C to 55°C |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 4000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 183.5 |
| Height(mm) | 266 |
| Depth(mm) | 111.5 |
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.