Lauritz Knudsen Manual Changeover Switch, C-Line, 125A, 415V AC | Frame 1 | 4 Pole | SS Enclosure Extended Handle| Load‑Handling Capability
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Lauritz Knudsen Manual Changeover Switch, C-Line, 125A, 415V AC | Frame 1 | 4 Pole | SS Enclosure Extended Handle| Load‑Handling Capability
- Description
- Specifications
- Documents
- Warranty
- Reviews
Description
About the Product
The Lauritz Knudsen C-Line Manual Changeover Switch FR1 125A 4P 415V AC with SS (stainless steel) enclosure is a durable & high-performance switching solution designed for safe transfer of electrical load between two power sources such as mains supply & generator backup.
This model features a robust stainless steel enclosure that protects internal components from dust, moisture, & harsh environmental conditions. The extended handle mechanism allows safe & easy external operation without opening the enclosure, enhancing both safety & convenience.
With a 4-pole (4P) configuration, the switch ensures complete isolation of all conductors including neutral, making it suitable for applications where safety, protection, & continuous power availability are critical.
Purpose & Function
This enclosed manual changeover switch ensures efficient & safe power switching:
• Transfers load between mains & generator supply
• Provides full circuit isolation during switching
• Enables external manual operation via extended handle
• Ensures uninterrupted power supply during outages
• Enhances system safety with enclosed design
Electrical Configuration
• Type: Manual Changeover Switch
• Series: C-Line FR1
• Current rating: 125A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Enclosure: Stainless Steel (SS)
• Operation: Extended handle
• Function: Power source switching & isolation
Construction & Design
Engineered for durability & protection:
• Stainless steel enclosure for corrosion resistance & durability
• Strong & rugged construction for long service life
• Extended handle for convenient external operation
• Compact design for efficient installation
• High-quality contacts for reliable switching performance
Safety & Protection
• SS enclosure protects against dust, moisture, & accidental contact
• 4-pole design ensures complete electrical isolation
• Reduces risk of electrical faults & operational hazards
• Improves operator safety during switching
• Ensures dependable performance in harsh environments
Mounting & Installation
• Suitable for wall or panel mounting
• Enclosed design allows use in exposed or semi-outdoor environments
• Extended handle enables operation without opening the enclosure
• Compatible with standard industrial electrical systems
• Supports secure & organized internal wiring
Application Domains
• Industrial power distribution systems
• Commercial buildings & infrastructure
• Generator backup systems
• Outdoor & semi-outdoor installations
• Electrical panels in harsh environments
• Manufacturing & processing units
Key Features
• 125A current rating for medium to high-load applications
• 415V AC operation for three phase systems
• 4-pole configuration for complete isolation
• Stainless steel enclosure for enhanced protection
• Extended handle for safe external operation
• Durable & industrial-grade construction
Applications
• Generator changeover panels
• Industrial distribution boards
• Commercial electrical installations
• Outdoor electrical setups
• Backup power management systems
FAQs
1. What is the benefit of an SS enclosure?
Ans: It protects the switch from environmental factors like dust, moisture, & corrosion, ensuring longer service life.
2. What does 4P mean?
Ans: 4P (four-pole) ensures all conductors including neutral are isolated for maximum safety.
3. What is the purpose of the extended handle?
Ans: It allows operation of the switch from outside the enclosure without opening it.
4. Can this be used in outdoor installations?
Ans: Yes, the enclosed design makes it suitable for semi-outdoor & harsh environments.
5. What is a manual changeover switch used for?
Ans: It is used to safely switch between two power sources such as mains & generator.
6. Why is complete isolation important?
Ans: It ensures safety during maintenance & switching by fully disconnecting the circuit.
7. Is this suitable for industrial use?
Ans: Yes, it is ideal for industrial & commercial applications requiring safe & reliable power switching.
Overview
| Rated Operational Current (A) | 125 |
|---|---|
| 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) | 20000 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Short Time Withstand for 1sec (kA) | 5 |
| Rated Operational Power (kW) | 65 |
| Rated Breaking Capacity@AC-23A (A) | 1000 |
| Rated Making Capacity@AC-23A (A) | 1250 |
| Version | Manual, SS enclosure |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 20000 |
| Maximum Al termination (sq.mm) | 70 |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 8 |
| 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 FR1 125A 4P 415V AC with SS (stainless steel) enclosure is a durable & high-performance switching solution designed for safe transfer of electrical load between two power sources such as mains supply & generator backup.
This model features a robust stainless steel enclosure that protects internal components from dust, moisture, & harsh environmental conditions. The extended handle mechanism allows safe & easy external operation without opening the enclosure, enhancing both safety & convenience.
With a 4-pole (4P) configuration, the switch ensures complete isolation of all conductors including neutral, making it suitable for applications where safety, protection, & continuous power availability are critical.
Purpose & Function
This enclosed manual changeover switch ensures efficient & safe power switching:
• Transfers load between mains & generator supply
• Provides full circuit isolation during switching
• Enables external manual operation via extended handle
• Ensures uninterrupted power supply during outages
• Enhances system safety with enclosed design
Electrical Configuration
• Type: Manual Changeover Switch
• Series: C-Line FR1
• Current rating: 125A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Enclosure: Stainless Steel (SS)
• Operation: Extended handle
• Function: Power source switching & isolation
Construction & Design
Engineered for durability & protection:
• Stainless steel enclosure for corrosion resistance & durability
• Strong & rugged construction for long service life
• Extended handle for convenient external operation
• Compact design for efficient installation
• High-quality contacts for reliable switching performance
Safety & Protection
• SS enclosure protects against dust, moisture, & accidental contact
• 4-pole design ensures complete electrical isolation
• Reduces risk of electrical faults & operational hazards
• Improves operator safety during switching
• Ensures dependable performance in harsh environments
Mounting & Installation
• Suitable for wall or panel mounting
• Enclosed design allows use in exposed or semi-outdoor environments
• Extended handle enables operation without opening the enclosure
• Compatible with standard industrial electrical systems
• Supports secure & organized internal wiring
Application Domains
• Industrial power distribution systems
• Commercial buildings & infrastructure
• Generator backup systems
• Outdoor & semi-outdoor installations
• Electrical panels in harsh environments
• Manufacturing & processing units
Key Features
• 125A current rating for medium to high-load applications
• 415V AC operation for three phase systems
• 4-pole configuration for complete isolation
• Stainless steel enclosure for enhanced protection
• Extended handle for safe external operation
• Durable & industrial-grade construction
Applications
• Generator changeover panels
• Industrial distribution boards
• Commercial electrical installations
• Outdoor electrical setups
• Backup power management systems
FAQs
1. What is the benefit of an SS enclosure?
Ans: It protects the switch from environmental factors like dust, moisture, & corrosion, ensuring longer service life.
2. What does 4P mean?
Ans: 4P (four-pole) ensures all conductors including neutral are isolated for maximum safety.
3. What is the purpose of the extended handle?
Ans: It allows operation of the switch from outside the enclosure without opening it.
4. Can this be used in outdoor installations?
Ans: Yes, the enclosed design makes it suitable for semi-outdoor & harsh environments.
5. What is a manual changeover switch used for?
Ans: It is used to safely switch between two power sources such as mains & generator.
6. Why is complete isolation important?
Ans: It ensures safety during maintenance & switching by fully disconnecting the circuit.
7. Is this suitable for industrial use?
Ans: Yes, it is ideal for industrial & commercial applications requiring safe & reliable power switching.
Overview
| Rated Operational Current (A) | 125 |
|---|---|
| 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) | 20000 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Short Time Withstand for 1sec (kA) | 5 |
| Rated Operational Power (kW) | 65 |
| Rated Breaking Capacity@AC-23A (A) | 1000 |
| Rated Making Capacity@AC-23A (A) | 1250 |
| Version | Manual, SS enclosure |
| No. of Poles | 4P |
| Electrical life (Operating Cylces) | 2000 |
| Mechanical Life (Operating Cycles) | 20000 |
| Maximum Al termination (sq.mm) | 70 |
| Standard Accessories | Terminal Shroud,Phase Barriers,Source Separator, Extended handle with shaft |
| Pollution Degree | 3 |
| Rated impulse withstand voltage (Uimp) | 8 |
| 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.