Lauritz Knudsen MNX Power Contactor 250A, 3 Pole, 240V AC | AC1 Rating - 300A | AC3 Rating - 250A | with 2 Inbuilt + 2 in auxilary contacts | Electrical Coil | Click fit type construction up to 40A
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Lauritz Knudsen MNX Power Contactor 250A, 3 Pole, 240V AC | AC1 Rating - 300A | AC3 Rating - 250A | with 2 Inbuilt + 2 in auxilary contacts | Electrical Coil | Click fit type construction up to 40A
- Description
- Specifications
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- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen MNX Contactor 250A 3P 415V AC (AC 3) with 240V AC Coil (50–60 Hz) is an ultra high-capacity industrial switching solution engineered for efficient & reliable control of very large electric motors & heavy inductive loads in demanding industrial environments. With a 250A current rating & a 3 pole configuration, it is ideally suited for high-power three-phase motor control systems in large-scale automation & electrical control panels.
Designed for AC 3 duty applications, this contactor is specifically built to manage inductive loads such as motors, compressors, pumps, conveyors, & heavy industrial machinery, including extremely high inrush currents during motor startup & stable switching during continuous operation. The MNX series is widely known for its compact footprint, rugged construction, & long operational life, making it a dependable solution for critical industrial operations.
The 240V AC coil (50–60 Hz) ensures compatibility with commonly used industrial control voltages, providing stable, efficient, & reliable operation in control panels. Built using premium-quality materials & precision engineering, this contactor delivers consistent switching performance, high durability, & dependable reliability under extreme operating conditions.
Purpose & Function
This contactor is engineered for ultra heavy-duty motor control & industrial automation:
• Controls very large three-phase motors & inductive loads
• Handles extremely high inrush current during motor startup
• Provides reliable switching & operational stability
• Supports large-scale automation & control systems
• Enhances efficiency & performance of electrical systems
Electrical Configuration
• Product type: Contactor
• Model: MNX
• Rated current: 250A
• Number of poles: 3P
• Voltage rating: 415V AC
• Utilization category: AC 3 (motor loads)
• Coil voltage: 240V AC
• Frequency: 50–60 Hz
• Function: Motor switching, control, & protection
Construction & Design
Engineered for extreme industrial environments:
• High-quality contacts for superior electrical conductivity
• Heavy-duty construction ensures long operational life
• Compact design for efficient panel integration
• Precision switching mechanism for reliable performance
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under heavy inductive loads
• Enhances safety of industrial control systems
• Improves overall system reliability & operational safety
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient space utilization
• Easy & secure installation process
• Simplified wiring & integration
• Ensures strong & stable electrical connections
Application Domains
• Motor control centers (MCC panels)
• Heavy & large-scale industrial automation systems
• Pumps, compressors, & conveyor systems
• HVAC systems & large machinery control
• Manufacturing & heavy process industries
• High-capacity electrical control systems
Key Features
• 250A rated MNX contactor
• 3-pole configuration for ultra heavy-duty motor control
• AC 3 duty for inductive loads
• 240V AC coil (50–60 Hz)
• Rugged, durable, & industrial-grade construction
Applications
• Very large motor switching & control
• Industrial automation & process systems
• Pumping & compressor applications
• Conveyor & heavy machinery systems
• High-capacity industrial electrical installations
FAQs
1. What is an AC 3 contactor?
Ans: An AC 3 contactor is designed for switching inductive loads like motors & handling high starting currents safely.
2. What does 3P mean?
Ans: It indicates a three-pole contactor used for controlling three-phase electrical circuits.
3. What is the coil voltage?
Ans: This model operates with a 240V AC coil (50–60 Hz).
4. Where is this contactor used?
Ans: It is used in heavy industrial automation systems, motor control panels, & high-capacity electrical installations.
5. Is it suitable for ultra heavy-duty motors?
Ans: Yes, it is specifically designed for very large motors & high-capacity industrial loads.
6. What is MNX series known for?
Ans: The MNX series is known for compact design, durability, & reliable industrial performance.
7. Is installation easy?
Ans: Yes, it is designed for quick & secure installation in electrical control panels.
Overview
| Ambient temperature | -20 to 55 degree C |
|---|---|
| Mechanical Life (No. of operating cycles) | 3600 Cy/Hr |
| Rated impulse withstand voltage (Uimp) | 8kV |
| Rated Insulation Voltage Ui (V) | 1000V |
| Conformance to Standards | IS/IEC 6094741, IEC 6094741 |
| Coil Voltage | 240 V AC |
| Rated operational current at 415V | 250A |
| Discount Percentage | Between 0-10 % |
| No. of Poles | 3P |
| Height(mm) | 208.2 |
| Width(mm) | 147 |
| Depth(mm) | 181 |
| Rated kW | 132kW |
| Rated making capacity | 3000A |
| Coil Operating band %Uc (Pick up) | 80 - 110 % |
| Rated breaking capacity | 2500A |
| Mechanical Life | 10 Million |
| Coil Operating band %Uc (Drop off) | 35 - 65 % |
| Pick up VA consumption | 960VA |
| Hold on VA consumption | 56VA |
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 MNX Contactor 250A 3P 415V AC (AC 3) with 240V AC Coil (50–60 Hz) is an ultra high-capacity industrial switching solution engineered for efficient & reliable control of very large electric motors & heavy inductive loads in demanding industrial environments. With a 250A current rating & a 3 pole configuration, it is ideally suited for high-power three-phase motor control systems in large-scale automation & electrical control panels.
Designed for AC 3 duty applications, this contactor is specifically built to manage inductive loads such as motors, compressors, pumps, conveyors, & heavy industrial machinery, including extremely high inrush currents during motor startup & stable switching during continuous operation. The MNX series is widely known for its compact footprint, rugged construction, & long operational life, making it a dependable solution for critical industrial operations.
The 240V AC coil (50–60 Hz) ensures compatibility with commonly used industrial control voltages, providing stable, efficient, & reliable operation in control panels. Built using premium-quality materials & precision engineering, this contactor delivers consistent switching performance, high durability, & dependable reliability under extreme operating conditions.
Purpose & Function
This contactor is engineered for ultra heavy-duty motor control & industrial automation:
• Controls very large three-phase motors & inductive loads
• Handles extremely high inrush current during motor startup
• Provides reliable switching & operational stability
• Supports large-scale automation & control systems
• Enhances efficiency & performance of electrical systems
Electrical Configuration
• Product type: Contactor
• Model: MNX
• Rated current: 250A
• Number of poles: 3P
• Voltage rating: 415V AC
• Utilization category: AC 3 (motor loads)
• Coil voltage: 240V AC
• Frequency: 50–60 Hz
• Function: Motor switching, control, & protection
Construction & Design
Engineered for extreme industrial environments:
• High-quality contacts for superior electrical conductivity
• Heavy-duty construction ensures long operational life
• Compact design for efficient panel integration
• Precision switching mechanism for reliable performance
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under heavy inductive loads
• Enhances safety of industrial control systems
• Improves overall system reliability & operational safety
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient space utilization
• Easy & secure installation process
• Simplified wiring & integration
• Ensures strong & stable electrical connections
Application Domains
• Motor control centers (MCC panels)
• Heavy & large-scale industrial automation systems
• Pumps, compressors, & conveyor systems
• HVAC systems & large machinery control
• Manufacturing & heavy process industries
• High-capacity electrical control systems
Key Features
• 250A rated MNX contactor
• 3-pole configuration for ultra heavy-duty motor control
• AC 3 duty for inductive loads
• 240V AC coil (50–60 Hz)
• Rugged, durable, & industrial-grade construction
Applications
• Very large motor switching & control
• Industrial automation & process systems
• Pumping & compressor applications
• Conveyor & heavy machinery systems
• High-capacity industrial electrical installations
FAQs
1. What is an AC 3 contactor?
Ans: An AC 3 contactor is designed for switching inductive loads like motors & handling high starting currents safely.
2. What does 3P mean?
Ans: It indicates a three-pole contactor used for controlling three-phase electrical circuits.
3. What is the coil voltage?
Ans: This model operates with a 240V AC coil (50–60 Hz).
4. Where is this contactor used?
Ans: It is used in heavy industrial automation systems, motor control panels, & high-capacity electrical installations.
5. Is it suitable for ultra heavy-duty motors?
Ans: Yes, it is specifically designed for very large motors & high-capacity industrial loads.
6. What is MNX series known for?
Ans: The MNX series is known for compact design, durability, & reliable industrial performance.
7. Is installation easy?
Ans: Yes, it is designed for quick & secure installation in electrical control panels.
Overview
| Ambient temperature | -20 to 55 degree C |
|---|---|
| Mechanical Life (No. of operating cycles) | 3600 Cy/Hr |
| Rated impulse withstand voltage (Uimp) | 8kV |
| Rated Insulation Voltage Ui (V) | 1000V |
| Conformance to Standards | IS/IEC 6094741, IEC 6094741 |
| Coil Voltage | 240 V AC |
| Rated operational current at 415V | 250A |
| Discount Percentage | Between 0-10 % |
| No. of Poles | 3P |
| Height(mm) | 208.2 |
| Width(mm) | 147 |
| Depth(mm) | 181 |
| Rated kW | 132kW |
| Rated making capacity | 3000A |
| Coil Operating band %Uc (Pick up) | 80 - 110 % |
| Rated breaking capacity | 2500A |
| Mechanical Life | 10 Million |
| Coil Operating band %Uc (Drop off) | 35 - 65 % |
| Pick up VA consumption | 960VA |
| Hold on VA consumption | 56VA |
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.