Lauritz Knudsen EXORA, MCB, 1 Pole, 240V AC, 10kA, D Curve, 63A
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Lauritz Knudsen EXORA, MCB, 1 Pole, 240V AC, 10kA, D Curve, 63A
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Exora MCB 63A SP 240V AC 10kA D Curve is a high-performance single pole miniature circuit breaker designed to provide reliable protection against overload & short-circuit conditions in low-voltage electrical systems. Engineered for industrial control circuits, transformer protection, motor applications, & heavy-duty equipment, this MCB ensures safe circuit operation by automatically interrupting fault currents before they can damage wiring, electrical equipment, or connected loads. With a 63A current rating, 240V AC operating voltage, 10kA breaking capacity, & D Curve tripping characteristic, it is ideally suited for circuits with exceptionally high inrush currents where conventional B Curve or C Curve MCBs may cause nuisance tripping.
How the Mechanism Works
The Exora MCB utilizes an advanced thermal-magnetic protection system to safeguard electrical circuits from abnormal current conditions.
• The thermal element responds to prolonged overload conditions by gradually activating the trip mechanism.
• The magnetic element instantly detects high fault currents caused by short circuits & disconnects the circuit immediately.
• The D Curve characteristic allows significantly higher inrush currents before tripping compared to B Curve & C Curve MCBs.
• Provides reliable protection for large motors, compressors, transformers, & equipment with high startup current surges.
• Ensures uninterrupted operation while minimizing nuisance tripping.
Electrical Configuration
This MCB is designed for specialized applications requiring superior inrush current handling capability.
• Rated current: 63A
• Pole configuration: Single Pole (SP)
• Rated voltage: 240V AC
• Breaking capacity: 10kA
• Tripping characteristic: D Curve
• Suitable for very high inrush current applications
• Designed for large motors, compressors, transformers, pumps, & heavy inductive loads
Construction & Design
Built for reliable operation in industrial & commercial electrical systems, the MCB features a compact & rugged design.
• High-quality flame-retardant insulated housing
• Compact modular construction for efficient panel utilization
• Precision-engineered contact mechanism
• Ergonomic operating handle for convenient switching & resetting
• Reliable internal tripping mechanism for consistent operation
• Suitable for integration into control panels & distribution boards
Safety & Protection
The breaker provides dependable protection against electrical faults while ensuring equipment & operator safety.
• Reliable overload protection
• Instantaneous short-circuit protection
• Protection for motors, compressors, transformers, pumps, & sensitive industrial equipment
• Prevention of wiring damage caused by excessive current flow
• Enhanced operator & maintenance safety
• Reduced risk of electrical faults & equipment downtime
• Improved reliability of connected electrical systems
Mounting & Durability
Designed for dependable long-term operation in demanding electrical environments.
• Standard DIN rail mounting compatibility
• Quick & simple installation
• Compact space-saving design
• Heavy-duty industrial-grade construction
• Resistant to electrical & thermal stresses
• Low maintenance requirements
• Long operational service life with consistent protection performance
Application Domains
Suitable for specialized industrial & commercial applications requiring high inrush current tolerance.
• Industrial control systems
• Transformer protection circuits
• Large motor starter circuits
• Compressor & pump systems
• HVAC equipment
• Main power distribution installations
• High inrush current equipment
• Manufacturing & process control facilities
Key Features
• Rated current: 63A
• Single Pole (SP) configuration
• Rated voltage: 240V AC
• Breaking capacity: 10kA
• D Curve tripping characteristic
• Thermal-magnetic protection mechanism
• Reliable overload & short-circuit protection
• DIN rail mounting compatible
• Suitable for high inrush current applications
• Compact modular construction
• Heavy-duty & durable industrial-grade design
Applications
• Industrial distribution boards
• Main power circuits
• Large motor & compressor systems
• Transformer protection circuits
• HVAC & pump systems
• Heavy inductive load applications
• Control panels & switchboards
• High inrush current electrical equipment
FAQs
1. What is a 63A D Curve MCB used for?
Ans: A 63A D Curve MCB is used to protect circuits that experience high inrush currents, such as large motors, compressors, pumps, transformers, industrial control systems, & specialized electrical installations.
2. What does the 63A rating indicate?
Ans: The 63A rating indicates the maximum continuous current the MCB can safely carry under normal operating conditions.
3. What is a D Curve MCB?
Ans: A D Curve MCB is designed to tolerate significantly higher inrush currents before tripping, making it ideal for large motors, compressors, transformers, inductive loads, & equipment with high startup currents.
4. How is D Curve different from C Curve?
Ans: A D Curve MCB can withstand higher startup & surge currents before tripping than a C Curve MCB, making it better suited for heavy-duty inductive & motor applications.
5. What is the significance of a 10kA breaking capacity?
Ans: A 10kA breaking capacity means the MCB can safely interrupt fault currents up to 10,000 amperes without damaging the breaker.
6. Can this MCB be used in residential applications?
Ans: Yes, it can be used in residential installations where high inrush current equipment is present, but it is primarily intended for industrial & commercial applications.
7. How is the MCB mounted?
Ans: The MCB is designed for easy installation on standard DIN rails inside electrical panels & distribution boards.
8. Why is a D Curve characteristic important?
Ans: The D Curve characteristic prevents nuisance tripping in circuits with very high startup currents while still providing reliable overload & short-circuit protection.
Overview
| Discount Percentage | Between 0-10 % |
|---|---|
| Operating Temperature Range | -25°C to +70° C |
| Electrical life (Operating Cylces) | 10000 |
| Tightening Torque | 4Nm |
| Termination capacity | 35 Sq. mm (Rigid) 25 Sq. mm (Flexible) |
| Mechanical Life (Operating Cycles) | 100000 |
| No. of Poles | SP |
| Conformance to standards | IEC 60898-1 |
| Rated Insulation Voltage Ui (V) | 500V |
| Rated Frequency | 50Hz/60Hz |
| Rated Short-circuit Breaking Capacity | 10kA as per IEC 60898-1 |
| Rated Impulse Voltage | 4kV |
| Current Rating | 63A |
| Rated Operational voltage (Ue) | 240V |
| Conformance to Standards | IEC 60898-1 |
| Tripping Characteristic | D Curve |
| Length(mm) | 74.5 |
| Height(mm) | 87.3 |
| Breadth(mm) | 17.5 |
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 Exora MCB 63A SP 240V AC 10kA D Curve is a high-performance single pole miniature circuit breaker designed to provide reliable protection against overload & short-circuit conditions in low-voltage electrical systems. Engineered for industrial control circuits, transformer protection, motor applications, & heavy-duty equipment, this MCB ensures safe circuit operation by automatically interrupting fault currents before they can damage wiring, electrical equipment, or connected loads. With a 63A current rating, 240V AC operating voltage, 10kA breaking capacity, & D Curve tripping characteristic, it is ideally suited for circuits with exceptionally high inrush currents where conventional B Curve or C Curve MCBs may cause nuisance tripping.
How the Mechanism Works
The Exora MCB utilizes an advanced thermal-magnetic protection system to safeguard electrical circuits from abnormal current conditions.
• The thermal element responds to prolonged overload conditions by gradually activating the trip mechanism.
• The magnetic element instantly detects high fault currents caused by short circuits & disconnects the circuit immediately.
• The D Curve characteristic allows significantly higher inrush currents before tripping compared to B Curve & C Curve MCBs.
• Provides reliable protection for large motors, compressors, transformers, & equipment with high startup current surges.
• Ensures uninterrupted operation while minimizing nuisance tripping.
Electrical Configuration
This MCB is designed for specialized applications requiring superior inrush current handling capability.
• Rated current: 63A
• Pole configuration: Single Pole (SP)
• Rated voltage: 240V AC
• Breaking capacity: 10kA
• Tripping characteristic: D Curve
• Suitable for very high inrush current applications
• Designed for large motors, compressors, transformers, pumps, & heavy inductive loads
Construction & Design
Built for reliable operation in industrial & commercial electrical systems, the MCB features a compact & rugged design.
• High-quality flame-retardant insulated housing
• Compact modular construction for efficient panel utilization
• Precision-engineered contact mechanism
• Ergonomic operating handle for convenient switching & resetting
• Reliable internal tripping mechanism for consistent operation
• Suitable for integration into control panels & distribution boards
Safety & Protection
The breaker provides dependable protection against electrical faults while ensuring equipment & operator safety.
• Reliable overload protection
• Instantaneous short-circuit protection
• Protection for motors, compressors, transformers, pumps, & sensitive industrial equipment
• Prevention of wiring damage caused by excessive current flow
• Enhanced operator & maintenance safety
• Reduced risk of electrical faults & equipment downtime
• Improved reliability of connected electrical systems
Mounting & Durability
Designed for dependable long-term operation in demanding electrical environments.
• Standard DIN rail mounting compatibility
• Quick & simple installation
• Compact space-saving design
• Heavy-duty industrial-grade construction
• Resistant to electrical & thermal stresses
• Low maintenance requirements
• Long operational service life with consistent protection performance
Application Domains
Suitable for specialized industrial & commercial applications requiring high inrush current tolerance.
• Industrial control systems
• Transformer protection circuits
• Large motor starter circuits
• Compressor & pump systems
• HVAC equipment
• Main power distribution installations
• High inrush current equipment
• Manufacturing & process control facilities
Key Features
• Rated current: 63A
• Single Pole (SP) configuration
• Rated voltage: 240V AC
• Breaking capacity: 10kA
• D Curve tripping characteristic
• Thermal-magnetic protection mechanism
• Reliable overload & short-circuit protection
• DIN rail mounting compatible
• Suitable for high inrush current applications
• Compact modular construction
• Heavy-duty & durable industrial-grade design
Applications
• Industrial distribution boards
• Main power circuits
• Large motor & compressor systems
• Transformer protection circuits
• HVAC & pump systems
• Heavy inductive load applications
• Control panels & switchboards
• High inrush current electrical equipment
FAQs
1. What is a 63A D Curve MCB used for?
Ans: A 63A D Curve MCB is used to protect circuits that experience high inrush currents, such as large motors, compressors, pumps, transformers, industrial control systems, & specialized electrical installations.
2. What does the 63A rating indicate?
Ans: The 63A rating indicates the maximum continuous current the MCB can safely carry under normal operating conditions.
3. What is a D Curve MCB?
Ans: A D Curve MCB is designed to tolerate significantly higher inrush currents before tripping, making it ideal for large motors, compressors, transformers, inductive loads, & equipment with high startup currents.
4. How is D Curve different from C Curve?
Ans: A D Curve MCB can withstand higher startup & surge currents before tripping than a C Curve MCB, making it better suited for heavy-duty inductive & motor applications.
5. What is the significance of a 10kA breaking capacity?
Ans: A 10kA breaking capacity means the MCB can safely interrupt fault currents up to 10,000 amperes without damaging the breaker.
6. Can this MCB be used in residential applications?
Ans: Yes, it can be used in residential installations where high inrush current equipment is present, but it is primarily intended for industrial & commercial applications.
7. How is the MCB mounted?
Ans: The MCB is designed for easy installation on standard DIN rails inside electrical panels & distribution boards.
8. Why is a D Curve characteristic important?
Ans: The D Curve characteristic prevents nuisance tripping in circuits with very high startup currents while still providing reliable overload & short-circuit protection.
Overview
| Discount Percentage | Between 0-10 % |
|---|---|
| Operating Temperature Range | -25°C to +70° C |
| Electrical life (Operating Cylces) | 10000 |
| Tightening Torque | 4Nm |
| Termination capacity | 35 Sq. mm (Rigid) 25 Sq. mm (Flexible) |
| Mechanical Life (Operating Cycles) | 100000 |
| No. of Poles | SP |
| Conformance to standards | IEC 60898-1 |
| Rated Insulation Voltage Ui (V) | 500V |
| Rated Frequency | 50Hz/60Hz |
| Rated Short-circuit Breaking Capacity | 10kA as per IEC 60898-1 |
| Rated Impulse Voltage | 4kV |
| Current Rating | 63A |
| Rated Operational voltage (Ue) | 240V |
| Conformance to Standards | IEC 60898-1 |
| Tripping Characteristic | D Curve |
| Length(mm) | 74.5 |
| Height(mm) | 87.3 |
| Breadth(mm) | 17.5 |
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.