Lauritz Knudsen MU-G20HS SMART Controller FASD - for Submersible Pump of 20 HP | Suitable for East Region | IVRS Language - English, Hindi, Odia, Assamese, Bengali | In-built Theft protection | Relay Range 13-42A | 415V AC
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Lauritz Knudsen MU-G20HS SMART Controller FASD - for Submersible Pump of 20 HP | Suitable for East Region | IVRS Language - English, Hindi, Odia, Assamese, Bengali | In-built Theft protection | Relay Range 13-42A | 415V AC
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- Specifications
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- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen Smart Fully Automatic Star-Delta Three Phase Submersible Pump Controller MU-G20HS – East Zone (415V) is a high-performance motor control & protection solution specifically designed for 20HP three-phase submersible pumps operating at 415V AC. Engineered to provide efficient motor starting, advanced protection, & reliable pump operation, this controller is ideal for agricultural irrigation systems, borewell applications, water distribution networks, & medium-to-high capacity heavy-load pumping installations where reliability & long-term performance are essential.
The controller utilizes the Star-Delta starting method, a proven motor starting technique that significantly reduces starting current & minimizes mechanical stress during motor startup. By initially starting the motor in Star mode & automatically transitioning to Delta mode, the controller ensures smooth acceleration, reduced voltage fluctuations, improved electrical efficiency, & enhanced equipment lifespan. This makes it particularly suitable for 20HP motors where Direct-On-Line (DOL) starting may result in excessive inrush current & increased electrical stress on the motor & power supply network.
Designed with an extended operating current range of 13A to 42A, the MU-G20HS is a heavy-duty high-current variant developed for demanding applications requiring superior current handling capability, higher starting torque, & greater operational flexibility. The controller continuously monitors motor operating parameters & provides integrated protection functions that help safeguard both the motor & pump against common electrical & operational faults.
The built-in protection system provides reliable protection against overload conditions, phase failure, voltage imbalance, & dry run situations. These protection features help prevent motor damage, reduce maintenance requirements, minimize downtime, & improve overall system reliability & operational safety.
The fully automatic functionality eliminates the need for manual intervention by automatically transitioning from Star mode to Delta mode during startup. This ensures optimized motor performance, simplified operation, & consistent startup behavior under varying load conditions.
The 415V configuration is specifically designed for standard three-phase electrical systems commonly used in agricultural, industrial, & utility applications. This ensures broad compatibility with existing installations while maintaining reliable protection & stable motor performance.
The controller is housed in a rugged industrial-grade enclosure designed to withstand demanding outdoor environments. Its robust construction ensures reliable operation in agricultural fields, borewell sites, rural pumping stations, industrial facilities, & infrastructure projects. The user-friendly design supports easy installation, straightforward operation, & simplified maintenance.
The East Zone configuration is aligned with regional deployment requirements, environmental conditions, & service infrastructure, ensuring optimized compatibility & support within the designated geographical region.
This Smart Fully Automatic Star-Delta Controller is an ideal solution for applications requiring high current handling capability, reduced starting current, integrated protection, efficient motor control, & long-term operational reliability.
How the Mechanism Works
The controller functions by:
• Starting the motor in Star mode to reduce startup current
• Automatically switching to Delta mode after acceleration
• Minimizing electrical & mechanical stress during startup
• Continuously monitoring motor operating current
• Detecting overload conditions
• Identifying phase failure situations
• Monitoring voltage imbalance conditions
• Protecting against dry run operation
• Preventing damage caused by abnormal operating conditions
• Supporting efficient & reliable pump performance
It serves as a complete motor starting, control, & protection solution for medium-to-high capacity heavy-duty three-phase submersible pumps.
Electrical Configuration
• Product Type: Fully Automatic Star-Delta Pump Controller
• Model: MU-G20HS
• Motor Rating: 20HP
• Operating Voltage: 415V AC
• Phase Configuration: Three Phase
• Current Range: 13A–42A
• Starting Method: Automatic Star-Delta Starting
• Application: Submersible Pump Control & Protection
• Deployment Region: East Zone
• Primary Purpose: Motor Starting, Protection, & Pump Management
Construction & Design
Designed for reliability & field performance:
• Heavy-duty industrial-grade enclosure
• Rugged & durable construction
• Automatic Star-Delta switching mechanism
• Precision protection circuitry
• High-current heavy-duty internal components
• User-friendly operating interface
• Field-ready outdoor suitability
• Easy installation arrangement
• Durable long-life design
• Low maintenance requirements
Safety & Protection
Provides protection against:
• Overload conditions
• Phase failure conditions
• Voltage imbalance situations
• Dry run operation
• Excessive startup current stress
• Motor overheating risks
• Pump damage caused by abnormal operation
• Electrical system faults
• Unsafe operating conditions
• Premature equipment failure
Purpose & Function
• Reduces starting current during motor startup
• Minimizes mechanical stress on motor components
• Improves motor service life
• Enhances pumping system reliability
• Reduces maintenance requirements
• Supports smooth & stable motor acceleration
• Improves operational efficiency
• Enables automatic operation without manual intervention
• Suitable for heavy-load pumping applications
• Optimizes overall pumping performance
Application Domains
• Agricultural Irrigation Systems
• Borewell & Deep Well Submersible Pump Installations
• Medium-to-High Capacity Heavy-Load Pumping Systems
• Rural & Remote Water Supply Networks
• Industrial Water Handling Systems
• Infrastructure & Utility Projects
• Groundwater Extraction Systems
• Farm Water Management Applications
• Community Water Supply Systems
• Commercial Water Pumping Installations
Key Features
• Smart Fully Automatic Star-Delta motor controller
• Rated for 20HP three-phase submersible pumps
• Operating voltage: 415V AC
• Current range: 13A–42A (extended high-current HS variant)
• Reduces starting current & mechanical stress
• Automatic star-to-delta transition during startup
• Integrated overload protection
• Integrated phase failure protection
• Integrated voltage imbalance protection
• Integrated dry run protection
• HS variant for heavy-load & high-current applications
• Suitable for medium-to-high capacity heavy-duty pumping systems
• Designed for standard 415V applications
• Rugged & durable industrial construction
• Easy installation & operation
• Designed for East Zone deployment
• Reliable & long-term performance
Applications
• Agricultural irrigation systems
• Borewell & deep well submersible pump installations
• Medium-to-high capacity heavy-load pumping systems
• Rural & remote water supply networks
• Industrial water handling systems
• Infrastructure & utility projects
• Groundwater extraction systems
• Farm water management applications
• Community water supply systems
• Commercial water pumping installations
FAQs
1. What is the difference between MU-G20S & MU-G20HS?
Ans: The MU-G20HS supports an extended current range of 13A–42A, making it ideal for heavy-load, high-current, & higher torque applications compared to standard & mid-range variants.
2. What is a Star-Delta controller used for?
Ans: It is used to reduce starting current & mechanical stress during motor startup, ensuring smoother operation, improved efficiency, & enhanced system reliability.
3. What motor rating does this controller support?
Ans: It is specifically designed to support 20HP three-phase submersible pump motors.
4. What voltage does it operate on?
Ans: It operates at 415V AC, making it suitable for standard three-phase power systems used in agricultural, industrial, & utility installations.
5. Is this controller fully automatic?
Ans: Yes. The controller automatically switches from Star mode to Delta mode during startup without manual intervention, ensuring seamless & efficient operation.
6. Where is this controller typically used?
Ans: It is commonly used in irrigation systems, borewell pumping installations, industrial water handling systems, & medium-to-high capacity heavy-load pumping applications.
7. Why is the 13A–42A current range beneficial?
Ans: The extended current range enables the controller to handle heavier loads, support higher starting torque requirements, & maintain stable performance under demanding operating conditions.
8. What protection features are included?
Ans: The controller includes protection against overload, phase failure, voltage imbalance, & dry run conditions, ensuring safe, efficient, & long-term pump operation.
Overview
| Coil Voltage | 415V |
|---|---|
| Conformity to Standard | IS/IEC 60947-4-1 |
| Environment | Suitable for Humid, Dusty and Hot Environment |
| Contactor Electrical Life - AC3 | 1 Million operations |
| Region | EAST |
| Discount Percentage | Between 0-10 % |
| Mechanical Life | 10 Million operations |
| Service temperature | -5˚C to 55˚C |
| Rated impulse withstand voltage (Uimp) | 4KV |
| Rated Insulation Voltage Ui (V) | 690V |
| With/ Without WLC | Without WLC |
| HP | 20HP |
| Length(mm) | 526 |
| Breadth(mm) | 119 |
| Height(mm) | 470 |
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 Smart Fully Automatic Star-Delta Three Phase Submersible Pump Controller MU-G20HS – East Zone (415V) is a high-performance motor control & protection solution specifically designed for 20HP three-phase submersible pumps operating at 415V AC. Engineered to provide efficient motor starting, advanced protection, & reliable pump operation, this controller is ideal for agricultural irrigation systems, borewell applications, water distribution networks, & medium-to-high capacity heavy-load pumping installations where reliability & long-term performance are essential.
The controller utilizes the Star-Delta starting method, a proven motor starting technique that significantly reduces starting current & minimizes mechanical stress during motor startup. By initially starting the motor in Star mode & automatically transitioning to Delta mode, the controller ensures smooth acceleration, reduced voltage fluctuations, improved electrical efficiency, & enhanced equipment lifespan. This makes it particularly suitable for 20HP motors where Direct-On-Line (DOL) starting may result in excessive inrush current & increased electrical stress on the motor & power supply network.
Designed with an extended operating current range of 13A to 42A, the MU-G20HS is a heavy-duty high-current variant developed for demanding applications requiring superior current handling capability, higher starting torque, & greater operational flexibility. The controller continuously monitors motor operating parameters & provides integrated protection functions that help safeguard both the motor & pump against common electrical & operational faults.
The built-in protection system provides reliable protection against overload conditions, phase failure, voltage imbalance, & dry run situations. These protection features help prevent motor damage, reduce maintenance requirements, minimize downtime, & improve overall system reliability & operational safety.
The fully automatic functionality eliminates the need for manual intervention by automatically transitioning from Star mode to Delta mode during startup. This ensures optimized motor performance, simplified operation, & consistent startup behavior under varying load conditions.
The 415V configuration is specifically designed for standard three-phase electrical systems commonly used in agricultural, industrial, & utility applications. This ensures broad compatibility with existing installations while maintaining reliable protection & stable motor performance.
The controller is housed in a rugged industrial-grade enclosure designed to withstand demanding outdoor environments. Its robust construction ensures reliable operation in agricultural fields, borewell sites, rural pumping stations, industrial facilities, & infrastructure projects. The user-friendly design supports easy installation, straightforward operation, & simplified maintenance.
The East Zone configuration is aligned with regional deployment requirements, environmental conditions, & service infrastructure, ensuring optimized compatibility & support within the designated geographical region.
This Smart Fully Automatic Star-Delta Controller is an ideal solution for applications requiring high current handling capability, reduced starting current, integrated protection, efficient motor control, & long-term operational reliability.
How the Mechanism Works
The controller functions by:
• Starting the motor in Star mode to reduce startup current
• Automatically switching to Delta mode after acceleration
• Minimizing electrical & mechanical stress during startup
• Continuously monitoring motor operating current
• Detecting overload conditions
• Identifying phase failure situations
• Monitoring voltage imbalance conditions
• Protecting against dry run operation
• Preventing damage caused by abnormal operating conditions
• Supporting efficient & reliable pump performance
It serves as a complete motor starting, control, & protection solution for medium-to-high capacity heavy-duty three-phase submersible pumps.
Electrical Configuration
• Product Type: Fully Automatic Star-Delta Pump Controller
• Model: MU-G20HS
• Motor Rating: 20HP
• Operating Voltage: 415V AC
• Phase Configuration: Three Phase
• Current Range: 13A–42A
• Starting Method: Automatic Star-Delta Starting
• Application: Submersible Pump Control & Protection
• Deployment Region: East Zone
• Primary Purpose: Motor Starting, Protection, & Pump Management
Construction & Design
Designed for reliability & field performance:
• Heavy-duty industrial-grade enclosure
• Rugged & durable construction
• Automatic Star-Delta switching mechanism
• Precision protection circuitry
• High-current heavy-duty internal components
• User-friendly operating interface
• Field-ready outdoor suitability
• Easy installation arrangement
• Durable long-life design
• Low maintenance requirements
Safety & Protection
Provides protection against:
• Overload conditions
• Phase failure conditions
• Voltage imbalance situations
• Dry run operation
• Excessive startup current stress
• Motor overheating risks
• Pump damage caused by abnormal operation
• Electrical system faults
• Unsafe operating conditions
• Premature equipment failure
Purpose & Function
• Reduces starting current during motor startup
• Minimizes mechanical stress on motor components
• Improves motor service life
• Enhances pumping system reliability
• Reduces maintenance requirements
• Supports smooth & stable motor acceleration
• Improves operational efficiency
• Enables automatic operation without manual intervention
• Suitable for heavy-load pumping applications
• Optimizes overall pumping performance
Application Domains
• Agricultural Irrigation Systems
• Borewell & Deep Well Submersible Pump Installations
• Medium-to-High Capacity Heavy-Load Pumping Systems
• Rural & Remote Water Supply Networks
• Industrial Water Handling Systems
• Infrastructure & Utility Projects
• Groundwater Extraction Systems
• Farm Water Management Applications
• Community Water Supply Systems
• Commercial Water Pumping Installations
Key Features
• Smart Fully Automatic Star-Delta motor controller
• Rated for 20HP three-phase submersible pumps
• Operating voltage: 415V AC
• Current range: 13A–42A (extended high-current HS variant)
• Reduces starting current & mechanical stress
• Automatic star-to-delta transition during startup
• Integrated overload protection
• Integrated phase failure protection
• Integrated voltage imbalance protection
• Integrated dry run protection
• HS variant for heavy-load & high-current applications
• Suitable for medium-to-high capacity heavy-duty pumping systems
• Designed for standard 415V applications
• Rugged & durable industrial construction
• Easy installation & operation
• Designed for East Zone deployment
• Reliable & long-term performance
Applications
• Agricultural irrigation systems
• Borewell & deep well submersible pump installations
• Medium-to-high capacity heavy-load pumping systems
• Rural & remote water supply networks
• Industrial water handling systems
• Infrastructure & utility projects
• Groundwater extraction systems
• Farm water management applications
• Community water supply systems
• Commercial water pumping installations
FAQs
1. What is the difference between MU-G20S & MU-G20HS?
Ans: The MU-G20HS supports an extended current range of 13A–42A, making it ideal for heavy-load, high-current, & higher torque applications compared to standard & mid-range variants.
2. What is a Star-Delta controller used for?
Ans: It is used to reduce starting current & mechanical stress during motor startup, ensuring smoother operation, improved efficiency, & enhanced system reliability.
3. What motor rating does this controller support?
Ans: It is specifically designed to support 20HP three-phase submersible pump motors.
4. What voltage does it operate on?
Ans: It operates at 415V AC, making it suitable for standard three-phase power systems used in agricultural, industrial, & utility installations.
5. Is this controller fully automatic?
Ans: Yes. The controller automatically switches from Star mode to Delta mode during startup without manual intervention, ensuring seamless & efficient operation.
6. Where is this controller typically used?
Ans: It is commonly used in irrigation systems, borewell pumping installations, industrial water handling systems, & medium-to-high capacity heavy-load pumping applications.
7. Why is the 13A–42A current range beneficial?
Ans: The extended current range enables the controller to handle heavier loads, support higher starting torque requirements, & maintain stable performance under demanding operating conditions.
8. What protection features are included?
Ans: The controller includes protection against overload, phase failure, voltage imbalance, & dry run conditions, ensuring safe, efficient, & long-term pump operation.
Overview
| Coil Voltage | 415V |
|---|---|
| Conformity to Standard | IS/IEC 60947-4-1 |
| Environment | Suitable for Humid, Dusty and Hot Environment |
| Contactor Electrical Life - AC3 | 1 Million operations |
| Region | EAST |
| Discount Percentage | Between 0-10 % |
| Mechanical Life | 10 Million operations |
| Service temperature | -5˚C to 55˚C |
| Rated impulse withstand voltage (Uimp) | 4KV |
| Rated Insulation Voltage Ui (V) | 690V |
| With/ Without WLC | Without WLC |
| HP | 20HP |
| Length(mm) | 526 |
| Breadth(mm) | 119 |
| Height(mm) | 470 |
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.