Lauritz Knudsen MNX Power Contactor 140A, 3 Pole, 240V AC | AC1 Rating - 160A | AC3 Rating - 140A | 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 140A, 3 Pole, 240V AC | AC1 Rating - 160A | AC3 Rating - 140A | 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 140A 3P 415V AC (AC 3) with 240V AC Coil (50–60 Hz) is a high-capacity industrial switching solution engineered for efficient & reliable control of large electric motors & inductive loads in demanding industrial environments. With a 140A current rating & a 3 pole configuration, it is ideally suited for heavy-duty three-phase motor control systems & automation panels.
Designed for AC 3 duty applications, this contactor is specifically built to handle inductive loads such as motors, compressors, pumps, & conveyors, including high inrush currents during motor startup & stable switching during continuous operation. The MNX series is known for its compact design, robust construction, & long service life, making it a reliable choice for modern industrial control systems.
The 240V AC coil (50–60 Hz) ensures compatibility with common industrial control voltages, enabling stable, efficient, & dependable operation in electrical panels. Manufactured with premium-quality materials & precision engineering, this contactor delivers consistent switching performance, durability, & high reliability even under heavy-duty conditions.
Purpose & Function
This contactor is engineered for efficient motor control & industrial automation:
• Controls large three-phase motors & inductive loads
• Handles high inrush current during motor startup
• Provides reliable switching & operational stability
• Supports automation & control system integration
• Enhances overall system efficiency & performance
Electrical Configuration
• Product type: Contactor
• Model: MNX
• Rated current: 140A
• 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 rugged industrial performance:
• High-quality contacts for superior electrical conductivity
• Compact design for efficient panel space utilization
• Durable construction ensures long operational life
• Optimized switching mechanism for consistent performance
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under inductive loads
• Enhances safety of control & protection systems
• Improves overall system reliability & safety
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient installation
• Easy & secure mounting process
• Simplified wiring & integration
• Ensures stable & reliable electrical connections
Application Domains
• Motor control centers (MCC panels)
• Industrial automation systems
• Pumps, compressors, & conveyor systems
• HVAC systems & machinery control
• Manufacturing & processing industries
• Electrical control & protection systems
Key Features
• 140A rated MNX contactor
• 3-pole configuration for motor control
• AC 3 duty for inductive loads
• 240V AC coil (50–60 Hz)
• Compact, durable, & industrial-grade design
Applications
• Heavy-duty motor switching & control
• Industrial automation & process systems
• Pump & compressor applications
• Conveyor & machinery operations
• Large-scale electrical installations
FAQs
1. What is an AC 3 contactor?
Ans: An AC 3 contactor is designed for switching inductive loads such as 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 motor control panels, industrial automation systems, & heavy-duty machinery applications.
5. Is it suitable for high-capacity motors?
Ans: Yes, it is specifically designed for large motor & industrial load switching applications.
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, & efficient 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 | 140A |
| Discount Percentage | Between 0-10 % |
| No. of Poles | 3P |
| Height(mm) | 175 |
| Width(mm) | 137 |
| Depth(mm) | 152 |
| Rated kW | 75kW |
| Rated making capacity | 1800VA |
| Coil Operating band %Uc (Pick up) | 80 - 110 % |
| Rated breaking capacity | 1600VA |
| Mechanical Life | 10 Million |
| Coil Operating band %Uc (Drop off) | 35 - 65 % |
| Pick up VA consumption | 550VA |
| Hold on VA consumption | 36VA |
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 140A 3P 415V AC (AC 3) with 240V AC Coil (50–60 Hz) is a high-capacity industrial switching solution engineered for efficient & reliable control of large electric motors & inductive loads in demanding industrial environments. With a 140A current rating & a 3 pole configuration, it is ideally suited for heavy-duty three-phase motor control systems & automation panels.
Designed for AC 3 duty applications, this contactor is specifically built to handle inductive loads such as motors, compressors, pumps, & conveyors, including high inrush currents during motor startup & stable switching during continuous operation. The MNX series is known for its compact design, robust construction, & long service life, making it a reliable choice for modern industrial control systems.
The 240V AC coil (50–60 Hz) ensures compatibility with common industrial control voltages, enabling stable, efficient, & dependable operation in electrical panels. Manufactured with premium-quality materials & precision engineering, this contactor delivers consistent switching performance, durability, & high reliability even under heavy-duty conditions.
Purpose & Function
This contactor is engineered for efficient motor control & industrial automation:
• Controls large three-phase motors & inductive loads
• Handles high inrush current during motor startup
• Provides reliable switching & operational stability
• Supports automation & control system integration
• Enhances overall system efficiency & performance
Electrical Configuration
• Product type: Contactor
• Model: MNX
• Rated current: 140A
• 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 rugged industrial performance:
• High-quality contacts for superior electrical conductivity
• Compact design for efficient panel space utilization
• Durable construction ensures long operational life
• Optimized switching mechanism for consistent performance
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under inductive loads
• Enhances safety of control & protection systems
• Improves overall system reliability & safety
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient installation
• Easy & secure mounting process
• Simplified wiring & integration
• Ensures stable & reliable electrical connections
Application Domains
• Motor control centers (MCC panels)
• Industrial automation systems
• Pumps, compressors, & conveyor systems
• HVAC systems & machinery control
• Manufacturing & processing industries
• Electrical control & protection systems
Key Features
• 140A rated MNX contactor
• 3-pole configuration for motor control
• AC 3 duty for inductive loads
• 240V AC coil (50–60 Hz)
• Compact, durable, & industrial-grade design
Applications
• Heavy-duty motor switching & control
• Industrial automation & process systems
• Pump & compressor applications
• Conveyor & machinery operations
• Large-scale electrical installations
FAQs
1. What is an AC 3 contactor?
Ans: An AC 3 contactor is designed for switching inductive loads such as 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 motor control panels, industrial automation systems, & heavy-duty machinery applications.
5. Is it suitable for high-capacity motors?
Ans: Yes, it is specifically designed for large motor & industrial load switching applications.
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, & efficient 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 | 140A |
| Discount Percentage | Between 0-10 % |
| No. of Poles | 3P |
| Height(mm) | 175 |
| Width(mm) | 137 |
| Depth(mm) | 152 |
| Rated kW | 75kW |
| Rated making capacity | 1800VA |
| Coil Operating band %Uc (Pick up) | 80 - 110 % |
| Rated breaking capacity | 1600VA |
| Mechanical Life | 10 Million |
| Coil Operating band %Uc (Drop off) | 35 - 65 % |
| Pick up VA consumption | 550VA |
| Hold on VA consumption | 36VA |
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.