Lauritz Knudsen DY125U, MCCB, 2 Pole, 415V AC, 10kA Breaking Capacity, 50A | Thermal-Magnetic Release | IP40 Protection
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Lauritz Knudsen DY125U, MCCB, 2 Pole, 415V AC, 10kA Breaking Capacity, 50A | Thermal-Magnetic Release | IP40 Protection
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen DY125U MCCB 50A 2 Pole 415V AC 10kA Thermal Magnetic is a compact molded case circuit breaker engineered to provide reliable circuit protection & switching for low-voltage electrical installations. Designed to protect circuits against overloads & short-circuit faults, it helps safeguard cables, electrical equipment, distribution boards, machinery, & control systems from damage caused by abnormal current conditions.
Featuring a 50A rated current, 2 Pole configuration, 415V AC operating voltage, & a 10kA short-circuit breaking capacity, this MCCB is suitable for commercial buildings, industrial control panels, OEM equipment, utility applications, & electrical distribution systems requiring dependable protection & isolation.
Its thermal magnetic trip mechanism combines overload protection with instantaneous short-circuit fault interruption, ensuring enhanced system safety, equipment protection, & long-term reliability.
How the Mechanism Works
The product functions by:
• Protecting circuits against overload conditions
• Interrupting short-circuit fault currents
• Automatically disconnecting faulty circuits
• Protecting cables & connected equipment
• Supporting safe power distribution
• Reducing risks of electrical damage
• Improving operational reliability
• Delivering dependable fault-clearing performance
It serves as an important protection device for maintaining electrical safety & system continuity.
Electrical Configuration
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: DY125U
• Current Rating: 50A
• Pole Configuration: 2 Pole
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 10kA
• Trip Type: Thermal Magnetic
• Application: Circuit Protection & Switching
• Suitable For: Single-Phase & Two-Pole Electrical Systems
• Catalog Number: EM90982OOGO
Construction & Design
Designed for dependable protection:
• Thermal magnetic trip mechanism
• 50A current rating
• 2-pole protection configuration
• 10kA fault-breaking capability
• Compact molded case design
• Reliable contact mechanism
• Durable engineering construction
• Long operational service life
Safety & Protection
• Reliable overload protection
• Fast short-circuit interruption
• Enhanced electrical safety
• Improved equipment protection
• Reduced downtime risks
• Reliable switching performance
• Long-term operational stability
• Consistent protection characteristics
Mounting & Durability
• Suitable for distribution boards & panels
• Compatible with commercial & industrial installations
• Compact footprint for space-saving installation
• Rugged molded case construction
• High mechanical durability
• Low maintenance requirements
• Designed for continuous operation
• Quality manufacturing standards
Application Domains
• Commercial Buildings
• Industrial Control Panels
• OEM Equipment
• Electrical Distribution Boards
• Utility Installations
• Infrastructure Projects
• Machine Protection Systems
• Power Distribution Applications
Key Features
• DY125U MCCB series
• 50A current rating
• 2 Pole configuration
• 415V AC operation
• 10kA breaking capacity
• Thermal magnetic trip protection
• Overload protection
• Short-circuit protection
• Compact molded case construction
• Long service life
Applications
• Distribution circuit protection
• Control panel protection
• Commercial electrical systems
• OEM machinery panels
• Utility electrical installations
• Small industrial feeders
• Equipment protection circuits
• Low-voltage power distribution
FAQs
1. What is the EM90982OOGO MCCB used for?
Ans: It is used for protecting electrical circuits & connected equipment against overloads & short-circuit faults in low-voltage electrical systems.
2. What is the current rating of this MCCB?
Ans: The MCCB is rated at 50A.
3. What does 2 Pole mean?
Ans: A 2 Pole MCCB switches & protects two conductors simultaneously, making it suitable for specific single-phase & two-pole applications.
4. What is the breaking capacity of this MCCB?
Ans: It offers a 10kA short-circuit breaking capacity for reliable fault interruption & equipment protection.
5. What is thermal magnetic protection?
Ans: Thermal magnetic protection provides thermal overload tripping & instantaneous magnetic tripping for short-circuit faults.
6. Where can this MCCB be installed?
Ans: It can be installed in distribution boards, control panels, OEM equipment, commercial facilities, & industrial electrical systems.
7. Is it suitable for commercial & industrial applications?
Ans: Yes, its compact design, 10kA breaking capacity, & thermal magnetic protection make it suitable for a wide range of commercial & industrial applications.
8. Does it require frequent maintenance?
Ans: No, its durable molded case construction & dependable trip mechanism ensure long-term, low-maintenance operation under normal operating conditions.
Overview
| Rated Operational Current | 50 |
|---|---|
| Mechanical Life (No. of operating cycles) | 30000 |
| No. of Poles | 2P |
| 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) | DY125U MCCB 50 2P 415V AC 10kA Thermal Magnetic 50/60 Hz |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 10kA |
| Ambient temperature | -5°C to 55°C |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 8000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 75 |
| Height(mm) | 130 |
| Depth(mm) | 60 |
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 DY125U MCCB 50A 2 Pole 415V AC 10kA Thermal Magnetic is a compact molded case circuit breaker engineered to provide reliable circuit protection & switching for low-voltage electrical installations. Designed to protect circuits against overloads & short-circuit faults, it helps safeguard cables, electrical equipment, distribution boards, machinery, & control systems from damage caused by abnormal current conditions.
Featuring a 50A rated current, 2 Pole configuration, 415V AC operating voltage, & a 10kA short-circuit breaking capacity, this MCCB is suitable for commercial buildings, industrial control panels, OEM equipment, utility applications, & electrical distribution systems requiring dependable protection & isolation.
Its thermal magnetic trip mechanism combines overload protection with instantaneous short-circuit fault interruption, ensuring enhanced system safety, equipment protection, & long-term reliability.
How the Mechanism Works
The product functions by:
• Protecting circuits against overload conditions
• Interrupting short-circuit fault currents
• Automatically disconnecting faulty circuits
• Protecting cables & connected equipment
• Supporting safe power distribution
• Reducing risks of electrical damage
• Improving operational reliability
• Delivering dependable fault-clearing performance
It serves as an important protection device for maintaining electrical safety & system continuity.
Electrical Configuration
• Product Type: Molded Case Circuit Breaker (MCCB)
• Series: DY125U
• Current Rating: 50A
• Pole Configuration: 2 Pole
• Rated Voltage: 415V AC
• Frequency: 50/60 Hz
• Breaking Capacity: 10kA
• Trip Type: Thermal Magnetic
• Application: Circuit Protection & Switching
• Suitable For: Single-Phase & Two-Pole Electrical Systems
• Catalog Number: EM90982OOGO
Construction & Design
Designed for dependable protection:
• Thermal magnetic trip mechanism
• 50A current rating
• 2-pole protection configuration
• 10kA fault-breaking capability
• Compact molded case design
• Reliable contact mechanism
• Durable engineering construction
• Long operational service life
Safety & Protection
• Reliable overload protection
• Fast short-circuit interruption
• Enhanced electrical safety
• Improved equipment protection
• Reduced downtime risks
• Reliable switching performance
• Long-term operational stability
• Consistent protection characteristics
Mounting & Durability
• Suitable for distribution boards & panels
• Compatible with commercial & industrial installations
• Compact footprint for space-saving installation
• Rugged molded case construction
• High mechanical durability
• Low maintenance requirements
• Designed for continuous operation
• Quality manufacturing standards
Application Domains
• Commercial Buildings
• Industrial Control Panels
• OEM Equipment
• Electrical Distribution Boards
• Utility Installations
• Infrastructure Projects
• Machine Protection Systems
• Power Distribution Applications
Key Features
• DY125U MCCB series
• 50A current rating
• 2 Pole configuration
• 415V AC operation
• 10kA breaking capacity
• Thermal magnetic trip protection
• Overload protection
• Short-circuit protection
• Compact molded case construction
• Long service life
Applications
• Distribution circuit protection
• Control panel protection
• Commercial electrical systems
• OEM machinery panels
• Utility electrical installations
• Small industrial feeders
• Equipment protection circuits
• Low-voltage power distribution
FAQs
1. What is the EM90982OOGO MCCB used for?
Ans: It is used for protecting electrical circuits & connected equipment against overloads & short-circuit faults in low-voltage electrical systems.
2. What is the current rating of this MCCB?
Ans: The MCCB is rated at 50A.
3. What does 2 Pole mean?
Ans: A 2 Pole MCCB switches & protects two conductors simultaneously, making it suitable for specific single-phase & two-pole applications.
4. What is the breaking capacity of this MCCB?
Ans: It offers a 10kA short-circuit breaking capacity for reliable fault interruption & equipment protection.
5. What is thermal magnetic protection?
Ans: Thermal magnetic protection provides thermal overload tripping & instantaneous magnetic tripping for short-circuit faults.
6. Where can this MCCB be installed?
Ans: It can be installed in distribution boards, control panels, OEM equipment, commercial facilities, & industrial electrical systems.
7. Is it suitable for commercial & industrial applications?
Ans: Yes, its compact design, 10kA breaking capacity, & thermal magnetic protection make it suitable for a wide range of commercial & industrial applications.
8. Does it require frequent maintenance?
Ans: No, its durable molded case construction & dependable trip mechanism ensure long-term, low-maintenance operation under normal operating conditions.
Overview
| Rated Operational Current | 50 |
|---|---|
| Mechanical Life (No. of operating cycles) | 30000 |
| No. of Poles | 2P |
| 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) | DY125U MCCB 50 2P 415V AC 10kA Thermal Magnetic 50/60 Hz |
| Rated Sevice circuit breaking capacity (Ics as % of Icu) @415VAC | 10kA |
| Ambient temperature | -5°C to 55°C |
| Suitable for isolation | Yes |
| Load-line bias | No |
| Electrical Life (Operating Cycles) | 8000 |
| IP Protection | IP40 |
| Pollution Degree | III |
| Width(mm) | 75 |
| Height(mm) | 130 |
| Depth(mm) | 60 |
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.