Lauritz Knudsen MU-G30 Three Phase Submersible Pump Controllers (With Single Phase Preventer) of 30HP| Relay Range 30-50A | 380V AC | FASD (With Wideband Coil)
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Lauritz Knudsen MU-G30 Three Phase Submersible Pump Controllers (With Single Phase Preventer) of 30HP| Relay Range 30-50A | 380V AC | FASD (With Wideband Coil)
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Three Phase Fully Automatic Star Delta Controller for Submersible Pump Application is a control & protection unit designed for starting & operating three phase submersible pump motors using reduced voltage starting.
It automatically transitions from star to delta configuration to reduce starting current & mechanical stress, making it suitable for borewell installations, irrigation systems, & industrial water pumping applications where reliable motor control & protection are required.
How the Star Delta Controller Works
This controller ensures smooth & efficient motor operation through a staged starting process:
• Starts the motor in star configuration with reduced voltage
• Minimizes inrush current during startup
• Automatically switches to delta configuration after a preset interval
• Enables efficient operation at full motor capacity
• Reduces electrical & mechanical stress on the motor & connected equipment
Star-delta controllers are commonly used for higher-capacity motors where direct-on-line starting may result in excessive starting current.
Electrical Configuration
• Phase: Three Phase
• Control Type: Fully Automatic Star Delta Starter
• Application: Submersible pump motor control
• Function: Reduced voltage motor starting & protection
• System Compatibility: Low-voltage three phase systems
• Usage: Automatic star-to-delta transition
Construction & Design
The controller is designed for dependable performance in demanding pumping applications:
• Integrated star-delta switching & control mechanism
• Robust enclosure suitable for panel-mounted installations
• Designed for continuous & stable operation
• Optimized electrical arrangement for reliable performance
• Suitable for agricultural & industrial environments
Safety & Protection
• Reduces high starting current during motor startup
• Minimizes stress on motor windings & mechanical components
• Protects against overload conditions
• Provides protection against phase-related electrical faults
• Helps improve motor life & operational reliability
• Ensures safe & controlled motor operation
Mounting & Durability
• Suitable for panel mounting installations
• Designed for pump control panels & motor starter systems
• Built for outdoor & agricultural environments
• Resistant to dust & typical installation site conditions
• Designed for long operational life & dependable service
Application Domains
• Submersible pump systems
• Borewell installations
• Agricultural irrigation systems
• Industrial water pumping systems
• High-capacity motor control applications
Key Features
• Fully automatic star delta controller
• Reduced voltage motor starting capability
• Automatic star-to-delta transition
• Reduces starting current & motor stress
• Integrated motor control & protection system
• Suitable for submersible pump applications
• Designed for agricultural & industrial use
Applications
• Agricultural irrigation systems
• Borewell pump installations
• Industrial pumping systems
• Motor control panels
• Water supply & distribution systems
FAQs
1. What is a star delta controller used for?
Ans: It is used to start three phase motors with reduced voltage, minimizing starting current & protecting the electrical system.
2. How does star delta starting work?
Ans: The motor starts in star configuration with reduced voltage & then automatically switches to delta configuration for normal operation.
3. Why use a star delta controller instead of DOL starting?
Ans: Star delta starting reduces inrush current & mechanical stress, making it suitable for larger motors.
4. Where is this controller commonly installed?
Ans: It is commonly installed in borewell systems, irrigation networks, water pumping stations, & industrial applications.
5. Is it suitable for submersible pumps?
Ans: Yes, it is specifically designed for three phase submersible pump motor applications.
6. Does it provide motor protection?
Ans: Yes, it helps protect against overload conditions & phase-related electrical faults.
7. What is the benefit of automatic star-to-delta changeover?
Ans: It ensures smooth motor acceleration, efficient operation, & reduced stress on electrical systems.
Overview
| Coil Voltage | 380V |
|---|---|
| DOL/SASD/ FASD | FASD |
| Conformity to Standard | IS/IEC 60947-4-1 |
| Contactor Electrical Life - AC3 | 1 Million Operations |
| Discount Percentage | Between 0-10 % |
| Mechanical Life | 10 Million Operations |
| Service temperature | -5˚C to 55˚C |
| type | MU-G30 |
| Rated Impulse Withstand Voltage | 8kV |
| Rated Insulation Voltage | 690V |
| With/ Without WLC | Without WLC |
| HP | 30HP |
| Length(mm) | 526 |
| Breadth(mm) | 187 |
| Height(mm) | 572 |
| Relay Range (A) | 30 - 50A |
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 Three Phase Fully Automatic Star Delta Controller for Submersible Pump Application is a control & protection unit designed for starting & operating three phase submersible pump motors using reduced voltage starting.
It automatically transitions from star to delta configuration to reduce starting current & mechanical stress, making it suitable for borewell installations, irrigation systems, & industrial water pumping applications where reliable motor control & protection are required.
How the Star Delta Controller Works
This controller ensures smooth & efficient motor operation through a staged starting process:
• Starts the motor in star configuration with reduced voltage
• Minimizes inrush current during startup
• Automatically switches to delta configuration after a preset interval
• Enables efficient operation at full motor capacity
• Reduces electrical & mechanical stress on the motor & connected equipment
Star-delta controllers are commonly used for higher-capacity motors where direct-on-line starting may result in excessive starting current.
Electrical Configuration
• Phase: Three Phase
• Control Type: Fully Automatic Star Delta Starter
• Application: Submersible pump motor control
• Function: Reduced voltage motor starting & protection
• System Compatibility: Low-voltage three phase systems
• Usage: Automatic star-to-delta transition
Construction & Design
The controller is designed for dependable performance in demanding pumping applications:
• Integrated star-delta switching & control mechanism
• Robust enclosure suitable for panel-mounted installations
• Designed for continuous & stable operation
• Optimized electrical arrangement for reliable performance
• Suitable for agricultural & industrial environments
Safety & Protection
• Reduces high starting current during motor startup
• Minimizes stress on motor windings & mechanical components
• Protects against overload conditions
• Provides protection against phase-related electrical faults
• Helps improve motor life & operational reliability
• Ensures safe & controlled motor operation
Mounting & Durability
• Suitable for panel mounting installations
• Designed for pump control panels & motor starter systems
• Built for outdoor & agricultural environments
• Resistant to dust & typical installation site conditions
• Designed for long operational life & dependable service
Application Domains
• Submersible pump systems
• Borewell installations
• Agricultural irrigation systems
• Industrial water pumping systems
• High-capacity motor control applications
Key Features
• Fully automatic star delta controller
• Reduced voltage motor starting capability
• Automatic star-to-delta transition
• Reduces starting current & motor stress
• Integrated motor control & protection system
• Suitable for submersible pump applications
• Designed for agricultural & industrial use
Applications
• Agricultural irrigation systems
• Borewell pump installations
• Industrial pumping systems
• Motor control panels
• Water supply & distribution systems
FAQs
1. What is a star delta controller used for?
Ans: It is used to start three phase motors with reduced voltage, minimizing starting current & protecting the electrical system.
2. How does star delta starting work?
Ans: The motor starts in star configuration with reduced voltage & then automatically switches to delta configuration for normal operation.
3. Why use a star delta controller instead of DOL starting?
Ans: Star delta starting reduces inrush current & mechanical stress, making it suitable for larger motors.
4. Where is this controller commonly installed?
Ans: It is commonly installed in borewell systems, irrigation networks, water pumping stations, & industrial applications.
5. Is it suitable for submersible pumps?
Ans: Yes, it is specifically designed for three phase submersible pump motor applications.
6. Does it provide motor protection?
Ans: Yes, it helps protect against overload conditions & phase-related electrical faults.
7. What is the benefit of automatic star-to-delta changeover?
Ans: It ensures smooth motor acceleration, efficient operation, & reduced stress on electrical systems.
Overview
| Coil Voltage | 380V |
|---|---|
| DOL/SASD/ FASD | FASD |
| Conformity to Standard | IS/IEC 60947-4-1 |
| Contactor Electrical Life - AC3 | 1 Million Operations |
| Discount Percentage | Between 0-10 % |
| Mechanical Life | 10 Million Operations |
| Service temperature | -5˚C to 55˚C |
| type | MU-G30 |
| Rated Impulse Withstand Voltage | 8kV |
| Rated Insulation Voltage | 690V |
| With/ Without WLC | Without WLC |
| HP | 30HP |
| Length(mm) | 526 |
| Breadth(mm) | 187 |
| Height(mm) | 572 |
| Relay Range (A) | 30 - 50A |
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.