Lauritz Knudsen Motorised Changeover Switch, C-Line, 400A, 415V AC | Frame 4 | 4 Pole | Open Execution | Padlocking in OFF position | Load‑Handling Capability
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Lauritz Knudsen Motorised Changeover Switch, C-Line, 400A, 415V AC | Frame 4 | 4 Pole | Open Execution | Padlocking in OFF position | Load‑Handling Capability
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen C-Line Motorised Changeover Switch FR4 400A 4P 415V AC is a heavy-duty automatic switching solution engineered for seamless transfer of electrical load between two power sources such as mains supply & generator backup.
This motorised changeover switch enables automatic or remote-controlled operation, eliminating manual intervention & ensuring uninterrupted power supply in critical applications. Its open execution design allows easy access for inspection, maintenance, & integration into electrical panels & automation systems.
Part of the FR4 series, this model is built for high-load industrial & infrastructure environments requiring dependable performance. The 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, delivering maximum safety & operational reliability.
Purpose & Function
This motorised changeover switch is designed for advanced & automated power management:
• Automatically transfers load between mains supply & generator
• Eliminates manual switching operations
• Provides complete electrical isolation during changeover
• Enables remote or automated control
• Ensures continuous & reliable power supply
Electrical Configuration
• Type: Motorised Changeover Switch
• Series: C-Line FR4
• Current rating: 400A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Execution: Open type
• Operation: Motorised (automatic / remote-controlled)
• Function: Automatic power source switching & isolation
Construction & Design
Designed for heavy-duty industrial applications:
• Robust & industrial-grade construction
• Open execution for easy inspection & panel integration
• Integrated motor mechanism for automatic switching
• Designed for high current handling capacity
• High-quality contact system for reliable performance
Safety & Protection
• 4-pole configuration ensures complete circuit isolation including neutral
• Reduces risk of manual switching errors
• Provides smooth & controlled transition between power sources
• Enhances reliability in critical applications
• Improves overall electrical safety
Mounting & Installation
• Suitable for panel mounting
• Open design allows seamless integration into automation systems
• Compatible with AMF (Automatic Mains Failure) panels
• Easy installation & maintenance
• Supports clean & organized wiring layouts
Application Domains
• Industrial power distribution systems
• Commercial buildings & infrastructure
• Generator backup & AMF systems
• Data centers & critical facilities
• Manufacturing & processing plants
• Continuous power supply systems
Key Features
• 400A current rating for high-capacity applications
• 415V AC operation for three phase systems
• Motorised operation for automatic switching
• 4-pole configuration for complete isolation
• Open execution for easy installation & servicing
• Durable & industrial-grade construction
Applications
• Automatic mains failure (AMF) panels
• Generator backup systems
• Industrial automation panels
• Commercial electrical installations
• Critical & uninterrupted power systems
FAQs
1. What is a motorised changeover switch?
Ans: A motorised changeover switch automatically transfers power between two sources such as mains & generator without manual intervention.
2. What is the benefit compared to manual switches?
Ans: It provides automatic operation, faster switching response, & eliminates human error.
3. What does 4P mean?
Ans: 4P (four-pole) ensures complete isolation of all conductors including neutral for maximum safety.
4. What is open execution?
Ans: Open execution means the switch is not enclosed, allowing easy inspection & integration into panels.
5. Can this be used with generator systems?
Ans: Yes, it is ideal for generator backup & AMF panel applications.
6. Is it suitable for industrial use?
Ans: Yes, it is designed for heavy-duty industrial & commercial environments.
7. Why is automatic switching important?
Ans: It ensures uninterrupted power supply in critical applications where downtime must be avoided.
Overview
| Rated Operational Current (A) | 400 |
|---|---|
| Conformance to Standards | IS/IEC 60947-3, EN 60947-3 |
| Utilization Category | AC-23A |
| Rated operational voltage (Ue) | 415V |
| Operating Frequency(Hz) | 50/60 |
| Mechanical Life (No. of operating cycles) | 10000 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Short Time Withstand for 1sec (kA) | 22 |
| Rated Operational Power (kW) | 225 |
| Rated Breaking Capacity@AC-23A (A) | 3200 |
| Rated Making Capacity@AC-23A (A) | 4000 |
| Version | Motorised |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 10000 |
| Maximum Al termination (sq.mm) | 2*300 |
| Mounting positions | All Orientations |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator,Auxiliary Contacts, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 12 |
| Discount Percentage | Between 0-10 % |
Documents
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 C-Line Motorised Changeover Switch FR4 400A 4P 415V AC is a heavy-duty automatic switching solution engineered for seamless transfer of electrical load between two power sources such as mains supply & generator backup.
This motorised changeover switch enables automatic or remote-controlled operation, eliminating manual intervention & ensuring uninterrupted power supply in critical applications. Its open execution design allows easy access for inspection, maintenance, & integration into electrical panels & automation systems.
Part of the FR4 series, this model is built for high-load industrial & infrastructure environments requiring dependable performance. The 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, delivering maximum safety & operational reliability.
Purpose & Function
This motorised changeover switch is designed for advanced & automated power management:
• Automatically transfers load between mains supply & generator
• Eliminates manual switching operations
• Provides complete electrical isolation during changeover
• Enables remote or automated control
• Ensures continuous & reliable power supply
Electrical Configuration
• Type: Motorised Changeover Switch
• Series: C-Line FR4
• Current rating: 400A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Execution: Open type
• Operation: Motorised (automatic / remote-controlled)
• Function: Automatic power source switching & isolation
Construction & Design
Designed for heavy-duty industrial applications:
• Robust & industrial-grade construction
• Open execution for easy inspection & panel integration
• Integrated motor mechanism for automatic switching
• Designed for high current handling capacity
• High-quality contact system for reliable performance
Safety & Protection
• 4-pole configuration ensures complete circuit isolation including neutral
• Reduces risk of manual switching errors
• Provides smooth & controlled transition between power sources
• Enhances reliability in critical applications
• Improves overall electrical safety
Mounting & Installation
• Suitable for panel mounting
• Open design allows seamless integration into automation systems
• Compatible with AMF (Automatic Mains Failure) panels
• Easy installation & maintenance
• Supports clean & organized wiring layouts
Application Domains
• Industrial power distribution systems
• Commercial buildings & infrastructure
• Generator backup & AMF systems
• Data centers & critical facilities
• Manufacturing & processing plants
• Continuous power supply systems
Key Features
• 400A current rating for high-capacity applications
• 415V AC operation for three phase systems
• Motorised operation for automatic switching
• 4-pole configuration for complete isolation
• Open execution for easy installation & servicing
• Durable & industrial-grade construction
Applications
• Automatic mains failure (AMF) panels
• Generator backup systems
• Industrial automation panels
• Commercial electrical installations
• Critical & uninterrupted power systems
FAQs
1. What is a motorised changeover switch?
Ans: A motorised changeover switch automatically transfers power between two sources such as mains & generator without manual intervention.
2. What is the benefit compared to manual switches?
Ans: It provides automatic operation, faster switching response, & eliminates human error.
3. What does 4P mean?
Ans: 4P (four-pole) ensures complete isolation of all conductors including neutral for maximum safety.
4. What is open execution?
Ans: Open execution means the switch is not enclosed, allowing easy inspection & integration into panels.
5. Can this be used with generator systems?
Ans: Yes, it is ideal for generator backup & AMF panel applications.
6. Is it suitable for industrial use?
Ans: Yes, it is designed for heavy-duty industrial & commercial environments.
7. Why is automatic switching important?
Ans: It ensures uninterrupted power supply in critical applications where downtime must be avoided.
Overview
| Rated Operational Current (A) | 400 |
|---|---|
| Conformance to Standards | IS/IEC 60947-3, EN 60947-3 |
| Utilization Category | AC-23A |
| Rated operational voltage (Ue) | 415V |
| Operating Frequency(Hz) | 50/60 |
| Mechanical Life (No. of operating cycles) | 10000 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Short Time Withstand for 1sec (kA) | 22 |
| Rated Operational Power (kW) | 225 |
| Rated Breaking Capacity@AC-23A (A) | 3200 |
| Rated Making Capacity@AC-23A (A) | 4000 |
| Version | Motorised |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 10000 |
| Maximum Al termination (sq.mm) | 2*300 |
| Mounting positions | All Orientations |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator,Auxiliary Contacts, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 12 |
| Discount Percentage | Between 0-10 % |
Documents
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.