Lauritz Knudsen MNX Power Contactor 140A, 3 Pole, 24V 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, 24V 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 24V AC Coil (50–60 Hz) is a high-capacity industrial switching device 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 perfectly suited for heavy-duty three-phase motor control applications in automation systems & control panels.
Designed for AC 3 duty applications, this contactor effectively handles inductive loads such as motors, compressors, pumps, & conveyor systems, including high inrush currents during motor startup & stable operation during continuous running conditions. The MNX series is known for its compact design, rugged construction, & long service life, ensuring dependable performance in industrial applications.
The 24V AC coil (50–60 Hz) enables safe low-voltage control operation, making it ideal for applications where operator safety & reduced control circuit voltage are critical. Built using high-quality materials & precision engineering, this contactor delivers consistent switching performance, durability, & reliable operation even under heavy-duty conditions.
Purpose & Function
This contactor is engineered for heavy-duty motor control & safe low-voltage automation:
• Controls large three-phase motors & inductive loads
• Handles high inrush current during motor startup
• Enables safe low-voltage control circuit operation
• Provides reliable switching & operational stability
• Enhances system safety & automation efficiency
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: 24V 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 & space-efficient design for panel installation
• Durable heavy-duty construction ensures long service life
• Precision switching mechanism for consistent operation
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Low-voltage coil enhances operator safety
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under inductive load conditions
• Improves overall system reliability & protection
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient space utilization
• Simple & secure installation process
• Simplified wiring & system 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
• Low-voltage control applications
Key Features
• 140A rated MNX contactor
• 3-pole configuration for heavy-duty motor control
• AC 3 duty for inductive loads
• 24V AC coil (50–60 Hz) for safe operation
• Compact, durable, & industrial-grade design
Applications
• Heavy-duty motor switching & control
• Industrial automation systems
• Pumping & compressor applications
• Conveyor & machinery systems
• Low-voltage industrial control systems
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 circuits.
3. Why use a 24V coil?
Ans: A 24V AC coil provides safer low-voltage control, reducing risk in control circuits.
4. Where is this contactor used?
Ans: It is used in motor control panels, automation systems, & low-voltage industrial applications.
5. Is it suitable for heavy-duty motors?
Ans: Yes, it is specifically designed for large motor & high-capacity inductive load applications.
6. What is MNX series known for?
Ans: The MNX series is known for compact design, reliability, & durable industrial performance.
7. Is installation easy?
Ans: Yes, it is designed for fast, secure, & efficient installation in 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 | 24 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 24V AC Coil (50–60 Hz) is a high-capacity industrial switching device 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 perfectly suited for heavy-duty three-phase motor control applications in automation systems & control panels.
Designed for AC 3 duty applications, this contactor effectively handles inductive loads such as motors, compressors, pumps, & conveyor systems, including high inrush currents during motor startup & stable operation during continuous running conditions. The MNX series is known for its compact design, rugged construction, & long service life, ensuring dependable performance in industrial applications.
The 24V AC coil (50–60 Hz) enables safe low-voltage control operation, making it ideal for applications where operator safety & reduced control circuit voltage are critical. Built using high-quality materials & precision engineering, this contactor delivers consistent switching performance, durability, & reliable operation even under heavy-duty conditions.
Purpose & Function
This contactor is engineered for heavy-duty motor control & safe low-voltage automation:
• Controls large three-phase motors & inductive loads
• Handles high inrush current during motor startup
• Enables safe low-voltage control circuit operation
• Provides reliable switching & operational stability
• Enhances system safety & automation efficiency
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: 24V 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 & space-efficient design for panel installation
• Durable heavy-duty construction ensures long service life
• Precision switching mechanism for consistent operation
• High mechanical & electrical endurance
Safety & Protection
• Ensures safe motor starting & stopping
• Low-voltage coil enhances operator safety
• Reduces risk of electrical faults & equipment damage
• Provides stable switching under inductive load conditions
• Improves overall system reliability & protection
Mounting & Installation
• Suitable for panel mounting
• Compact structure for efficient space utilization
• Simple & secure installation process
• Simplified wiring & system 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
• Low-voltage control applications
Key Features
• 140A rated MNX contactor
• 3-pole configuration for heavy-duty motor control
• AC 3 duty for inductive loads
• 24V AC coil (50–60 Hz) for safe operation
• Compact, durable, & industrial-grade design
Applications
• Heavy-duty motor switching & control
• Industrial automation systems
• Pumping & compressor applications
• Conveyor & machinery systems
• Low-voltage industrial control systems
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 circuits.
3. Why use a 24V coil?
Ans: A 24V AC coil provides safer low-voltage control, reducing risk in control circuits.
4. Where is this contactor used?
Ans: It is used in motor control panels, automation systems, & low-voltage industrial applications.
5. Is it suitable for heavy-duty motors?
Ans: Yes, it is specifically designed for large motor & high-capacity inductive load applications.
6. What is MNX series known for?
Ans: The MNX series is known for compact design, reliability, & durable industrial performance.
7. Is installation easy?
Ans: Yes, it is designed for fast, secure, & efficient installation in 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 | 24 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.