Lauritz Knudsen Manual Changeover Switch, C-Line, 630A, 415V AC | Frame 5 | 4 Pole | Open Execution Extended Handle| Load‑Handling Capability
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Lauritz Knudsen Manual Changeover Switch, C-Line, 630A, 415V AC | Frame 5 | 4 Pole | Open Execution Extended Handle| Load‑Handling Capability
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen C-Line Manual Changeover Switch FR5 630A 4P 415V AC is an ultra heavy-duty switching solution engineered for reliable & safe transfer of electrical load between two power sources such as mains supply & generator backup. Featuring an open execution design & extended handle, it provides excellent accessibility, visibility, & precise manual control even in large-scale electrical installations.
Belonging to the FR5 series, this model represents one of the highest-capacity ranges, designed for extreme industrial & infrastructure environments. Its 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, offering maximum safety, reliability, & uninterrupted power continuity in critical systems.
Purpose & Function
This manual changeover switch is designed for advanced power management & safety:
• Transfers electrical load between mains & generator supply
• Provides complete circuit isolation during switching
• Enables manual operation via extended external handle
• Ensures uninterrupted power during supply transitions
• Enhances system safety & operational reliability
Electrical Configuration
• Type: Manual Changeover Switch
• Series: C-Line FR5
• Current rating: 630A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Execution: Open type
• Operation: Extended handle
• Function: Power source switching & isolation
Construction & Design
The switch is engineered for extreme-performance environments:
• Ultra heavy-duty industrial-grade construction
• Open execution for easy inspection & maintenance
• Extended handle for convenient external operation
• Designed for very high current handling & continuous use
• High-quality contact system for reliable & stable switching
Safety & Protection
• Ensures safe switching between multiple power sources
• 4-pole configuration provides full isolation including neutral
• Reduces risk of electrical faults & short circuits
• Supports safe handling & maintenance operations
• Protects connected equipment & large-scale installations
Mounting & Installation
• Suitable for large industrial panels & enclosures
• Extended handle allows easy operation from outside panels
• Efficient & straightforward installation process
• Compatible with standard industrial electrical systems
• Supports clean, organized, & accessible wiring layouts
Application Domains
• Heavy industrial power distribution systems
• Large infrastructure & utility projects
• Generator backup systems for critical operations
• Electrical substations & control panels
• Manufacturing & processing plants
• Ultra high-load power management systems
Key Features
• 630A current rating for ultra high-capacity applications
• 415V AC operation for three phase systems
• 4-pole configuration for complete circuit isolation
• Open execution for easy maintenance & inspection
• Extended handle for safe & convenient operation
• Ultra heavy-duty & industrial-grade construction
Applications
• Generator changeover panels
• Industrial distribution boards
• Large commercial & infrastructure electrical systems
• Backup & emergency power systems
• High-capacity control panels & switchgear
FAQs
1. What is a manual changeover switch?
Ans: A manual changeover switch is used to safely transfer electrical load between two power sources such as mains & generator.
2. What does FR5 series indicate?
Ans: FR5 indicates a premium, ultra heavy-duty series designed for extremely high-capacity industrial & infrastructure applications.
3. What does 4P mean?
Ans: 4P (four-pole) ensures complete isolation of all conductors including neutral, improving safety & reliability.
4. What is the benefit of an extended handle?
Ans: An extended handle allows operation from outside the panel or enclosure, improving accessibility & operator safety.
5. What is open execution?
Ans: Open execution means the switch is not enclosed, allowing easy inspection, maintenance, & monitoring.
6. Where is this switch typically used?
Ans: It is used in heavy industrial plants, infrastructure projects, substations, & large generator backup systems.
7. Why is full isolation important?
Ans: Full isolation ensures complete disconnection of the circuit, reducing risk during switching & maintenance while protecting equipment & personnel.
Overview
| Rated Operational Current (A) | 630 |
|---|---|
| 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) | 35 |
| Rated Operational Power (kW) | 315 |
| Rated Breaking Capacity@AC-23A (A) | 5040 |
| Rated Making Capacity@AC-23A (A) | 6300 |
| Version | Manual, Open Execution |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 10000 |
| Maximum Al termination (sq.mm) | 2*400 |
| 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 Manual Changeover Switch FR5 630A 4P 415V AC is an ultra heavy-duty switching solution engineered for reliable & safe transfer of electrical load between two power sources such as mains supply & generator backup. Featuring an open execution design & extended handle, it provides excellent accessibility, visibility, & precise manual control even in large-scale electrical installations.
Belonging to the FR5 series, this model represents one of the highest-capacity ranges, designed for extreme industrial & infrastructure environments. Its 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, offering maximum safety, reliability, & uninterrupted power continuity in critical systems.
Purpose & Function
This manual changeover switch is designed for advanced power management & safety:
• Transfers electrical load between mains & generator supply
• Provides complete circuit isolation during switching
• Enables manual operation via extended external handle
• Ensures uninterrupted power during supply transitions
• Enhances system safety & operational reliability
Electrical Configuration
• Type: Manual Changeover Switch
• Series: C-Line FR5
• Current rating: 630A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Execution: Open type
• Operation: Extended handle
• Function: Power source switching & isolation
Construction & Design
The switch is engineered for extreme-performance environments:
• Ultra heavy-duty industrial-grade construction
• Open execution for easy inspection & maintenance
• Extended handle for convenient external operation
• Designed for very high current handling & continuous use
• High-quality contact system for reliable & stable switching
Safety & Protection
• Ensures safe switching between multiple power sources
• 4-pole configuration provides full isolation including neutral
• Reduces risk of electrical faults & short circuits
• Supports safe handling & maintenance operations
• Protects connected equipment & large-scale installations
Mounting & Installation
• Suitable for large industrial panels & enclosures
• Extended handle allows easy operation from outside panels
• Efficient & straightforward installation process
• Compatible with standard industrial electrical systems
• Supports clean, organized, & accessible wiring layouts
Application Domains
• Heavy industrial power distribution systems
• Large infrastructure & utility projects
• Generator backup systems for critical operations
• Electrical substations & control panels
• Manufacturing & processing plants
• Ultra high-load power management systems
Key Features
• 630A current rating for ultra high-capacity applications
• 415V AC operation for three phase systems
• 4-pole configuration for complete circuit isolation
• Open execution for easy maintenance & inspection
• Extended handle for safe & convenient operation
• Ultra heavy-duty & industrial-grade construction
Applications
• Generator changeover panels
• Industrial distribution boards
• Large commercial & infrastructure electrical systems
• Backup & emergency power systems
• High-capacity control panels & switchgear
FAQs
1. What is a manual changeover switch?
Ans: A manual changeover switch is used to safely transfer electrical load between two power sources such as mains & generator.
2. What does FR5 series indicate?
Ans: FR5 indicates a premium, ultra heavy-duty series designed for extremely high-capacity industrial & infrastructure applications.
3. What does 4P mean?
Ans: 4P (four-pole) ensures complete isolation of all conductors including neutral, improving safety & reliability.
4. What is the benefit of an extended handle?
Ans: An extended handle allows operation from outside the panel or enclosure, improving accessibility & operator safety.
5. What is open execution?
Ans: Open execution means the switch is not enclosed, allowing easy inspection, maintenance, & monitoring.
6. Where is this switch typically used?
Ans: It is used in heavy industrial plants, infrastructure projects, substations, & large generator backup systems.
7. Why is full isolation important?
Ans: Full isolation ensures complete disconnection of the circuit, reducing risk during switching & maintenance while protecting equipment & personnel.
Overview
| Rated Operational Current (A) | 630 |
|---|---|
| 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) | 35 |
| Rated Operational Power (kW) | 315 |
| Rated Breaking Capacity@AC-23A (A) | 5040 |
| Rated Making Capacity@AC-23A (A) | 6300 |
| Version | Manual, Open Execution |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 10000 |
| Maximum Al termination (sq.mm) | 2*400 |
| 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.