Lauritz Knudsen MK1 DOL, Starter - 4 HP | Relay Range 4-6.5A | Coil Voltage 400/440V AC
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Lauritz Knudsen MK1 DOL, Starter - 4 HP | Relay Range 4-6.5A | Coil Voltage 400/440V AC
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Three Phase Direct-On-Line Starter is a motor control & protection device designed for starting & operating three phase induction motors using full-voltage starting.
It provides a simple & dependable method of motor control by directly connecting the motor to the power supply during startup. This makes it suitable for pumps, compressors, fans, blowers, conveyors, & various industrial applications requiring efficient motor operation & protection.
How the DOL Starter Works
This starter provides direct motor starting & protection functions:
• Connects the motor directly to the power supply
• Applies full line voltage during startup
• Enables rapid motor acceleration
• Supports reliable operation under normal load conditions
• Helps protect the motor from overload-related issues
DOL starters are widely used in applications where motors can safely withstand full-voltage starting current.
Electrical Configuration
• Phase: Three Phase
• Starter Type: Direct-On-Line (DOL) Starter
• Application: Three Phase Motor Control
• Function: Full-Voltage Motor Starting & Protection
• System Compatibility: Low Voltage Three Phase Systems
• Usage: Industrial, Commercial, & Pumping Applications
Construction & Design
The starter is engineered for dependable performance in demanding environments:
• Integrated motor starting & protection components
• Robust enclosure suitable for panel mounting
• Designed for continuous & stable operation
• Optimized internal electrical arrangement
• Suitable for industrial & commercial installations
Safety & Protection
• Protects motors against overload conditions
• Supports safe motor starting operations
• Helps improve motor reliability & service life
• Provides dependable switching performance
• Reduces the risk of equipment downtime
Mounting & Durability
• Suitable for panel mounting installations
• Designed for motor control panels & switchboards
• Durable construction for industrial environments
• Resistant to typical operating conditions
• Designed for long service life
Application Domains
• Industrial motor control systems
• Water pumping applications
• Compressors & air handling systems
• Fans & blowers
• Manufacturing machinery
• Material handling equipment
Key Features
• Three phase direct-on-line starter
• Full-voltage motor starting capability
• Integrated motor protection functionality
• Reliable switching performance
• Suitable for industrial & commercial applications
• Durable construction for long-term operation
• Easy installation & maintenance
Applications
• Water pumping systems
• Industrial machinery
• Air compressors
• Ventilation & blower systems
• Manufacturing plants
• Motor control panels
FAQs
1. What is a DOL starter used for?
Ans: A DOL starter is used to start three phase motors by directly applying full supply voltage to the motor.
2. What does DOL stand for?
Ans: DOL stands for Direct-On-Line, meaning the motor is connected directly to the power supply during startup.
3. Where are DOL starters commonly used?
Ans: They are used in pumps, compressors, fans, blowers, conveyors, & industrial machinery.
4. Does the starter provide motor protection?
Ans: Yes, it provides protection against overload conditions & helps ensure safe motor operation.
5. Is it suitable for industrial applications?
Ans: Yes, it is widely used in industrial & commercial motor control systems.
6. Why choose a DOL starter?
Ans: It offers a simple, reliable, & cost-effective solution for motor starting applications.
7. Can it be installed in motor control panels?
Ans: Yes, it is designed for integration into motor control panels & electrical systems.
Overview
| DOL/SASD/ FASD | DOL |
|---|---|
| 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 |
| type | MK1 DOL |
| Rated Insulation Voltage | 690V |
| HP | 4 HP |
| Length(mm) | 141 |
| Breadth(mm) | 115 |
| Height(mm) | 221 |
| Relay Range (A) | 4 - 6.5A |
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 Direct-On-Line Starter is a motor control & protection device designed for starting & operating three phase induction motors using full-voltage starting.
It provides a simple & dependable method of motor control by directly connecting the motor to the power supply during startup. This makes it suitable for pumps, compressors, fans, blowers, conveyors, & various industrial applications requiring efficient motor operation & protection.
How the DOL Starter Works
This starter provides direct motor starting & protection functions:
• Connects the motor directly to the power supply
• Applies full line voltage during startup
• Enables rapid motor acceleration
• Supports reliable operation under normal load conditions
• Helps protect the motor from overload-related issues
DOL starters are widely used in applications where motors can safely withstand full-voltage starting current.
Electrical Configuration
• Phase: Three Phase
• Starter Type: Direct-On-Line (DOL) Starter
• Application: Three Phase Motor Control
• Function: Full-Voltage Motor Starting & Protection
• System Compatibility: Low Voltage Three Phase Systems
• Usage: Industrial, Commercial, & Pumping Applications
Construction & Design
The starter is engineered for dependable performance in demanding environments:
• Integrated motor starting & protection components
• Robust enclosure suitable for panel mounting
• Designed for continuous & stable operation
• Optimized internal electrical arrangement
• Suitable for industrial & commercial installations
Safety & Protection
• Protects motors against overload conditions
• Supports safe motor starting operations
• Helps improve motor reliability & service life
• Provides dependable switching performance
• Reduces the risk of equipment downtime
Mounting & Durability
• Suitable for panel mounting installations
• Designed for motor control panels & switchboards
• Durable construction for industrial environments
• Resistant to typical operating conditions
• Designed for long service life
Application Domains
• Industrial motor control systems
• Water pumping applications
• Compressors & air handling systems
• Fans & blowers
• Manufacturing machinery
• Material handling equipment
Key Features
• Three phase direct-on-line starter
• Full-voltage motor starting capability
• Integrated motor protection functionality
• Reliable switching performance
• Suitable for industrial & commercial applications
• Durable construction for long-term operation
• Easy installation & maintenance
Applications
• Water pumping systems
• Industrial machinery
• Air compressors
• Ventilation & blower systems
• Manufacturing plants
• Motor control panels
FAQs
1. What is a DOL starter used for?
Ans: A DOL starter is used to start three phase motors by directly applying full supply voltage to the motor.
2. What does DOL stand for?
Ans: DOL stands for Direct-On-Line, meaning the motor is connected directly to the power supply during startup.
3. Where are DOL starters commonly used?
Ans: They are used in pumps, compressors, fans, blowers, conveyors, & industrial machinery.
4. Does the starter provide motor protection?
Ans: Yes, it provides protection against overload conditions & helps ensure safe motor operation.
5. Is it suitable for industrial applications?
Ans: Yes, it is widely used in industrial & commercial motor control systems.
6. Why choose a DOL starter?
Ans: It offers a simple, reliable, & cost-effective solution for motor starting applications.
7. Can it be installed in motor control panels?
Ans: Yes, it is designed for integration into motor control panels & electrical systems.
Overview
| DOL/SASD/ FASD | DOL |
|---|---|
| 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 |
| type | MK1 DOL |
| Rated Insulation Voltage | 690V |
| HP | 4 HP |
| Length(mm) | 141 |
| Breadth(mm) | 115 |
| Height(mm) | 221 |
| Relay Range (A) | 4 - 6.5A |
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.