Description
About the Product
The Lauritz Knudsen C-Line Manual Changeover Switch FR3 250A 4P 415V AC with SS (stainless steel) enclosure is a heavy-duty & high-capacity switching solution designed for safe transfer of electrical load between two power sources such as mains supply & generator backup.
This model is equipped with a robust stainless steel enclosure that provides excellent protection against dust, moisture, corrosion, & environmental exposure. The extended handle allows safe & convenient external operation without opening the enclosure, enhancing operator safety & usability.
As part of the FR3 series, this switch is built for demanding industrial environments requiring reliable performance under high-load conditions. Its 4-pole (4P) configuration ensures complete isolation of all conductors including neutral, offering enhanced safety & dependable operation.
Purpose & Function
This enclosed manual changeover switch is designed for efficient & safe power management:
• Transfers load between mains supply & generator
• Provides complete electrical isolation during switching
• Enables safe external operation via extended handle
• Ensures uninterrupted power during source transitions
• Enhances system safety with enclosed design
Electrical Configuration
• Type: Manual Changeover Switch
• Series: C-Line FR3
• Current rating: 250A
• Rated voltage: 415V AC
• Poles: 4 Pole (4P)
• Enclosure: Stainless Steel (SS)
• Operation: Extended handle
• Function: Power source switching & isolation
Construction & Design
The switch is engineered for durability & heavy-duty applications:
• Stainless steel enclosure for corrosion resistance & strength
• Industrial-grade construction for long service life
• Extended handle for easy & safe external operation
• Compact yet robust design suitable for large panels
• High-quality contact system for consistent switching performance
Safety & Protection
• SS enclosure protects against dust, moisture, & external damage
• 4-pole configuration ensures complete circuit isolation
• Reduces risk of electrical faults & accidental contact
• Improves safety for operators & maintenance personnel
• Ensures reliable operation in harsh environments
Mounting & Installation
• Suitable for wall or panel mounting
• Enclosed design allows installation in exposed & semi-outdoor areas
• Extended handle enables operation without opening enclosure
• Compatible with standard industrial electrical systems
• Supports clean & organized internal wiring
Application Domains
• Industrial power distribution systems
• Commercial buildings & infrastructure
• Generator backup systems
• Outdoor & semi-outdoor installations
• Electrical control panels in harsh environments
• Manufacturing & processing plants
Key Features
• 250A current rating for high-load industrial applications
• 415V AC operation for three phase systems
• 4-pole configuration for complete electrical isolation
• Stainless steel enclosure for enhanced durability & protection
• Extended handle for safe external operation
• Heavy-duty & industrial-grade design
Applications
• Generator changeover panels
• Industrial distribution boards
• Commercial electrical systems
• Outdoor electrical setups
• Backup power management systems
FAQs
1. What is the advantage of an SS enclosure?
Ans: It provides protection against dust, moisture, corrosion, & physical damage, ensuring durability in harsh environments.
2. What does 4P mean?
Ans: 4P (four-pole) means all conductors including neutral are fully isolated for maximum safety.
3. What is the purpose of the extended handle?
Ans: It allows operation of the switch externally without opening the enclosure, improving safety & convenience.
4. Can this switch be used outdoors?
Ans: Yes, the SS enclosure makes it suitable for outdoor & semi-outdoor applications.
5. What is a manual changeover switch used for?
Ans: It is used to safely transfer power between two sources such as mains & generator.
6. Why is complete isolation important?
Ans: It ensures safe maintenance & operation by fully disconnecting the electrical circuit.
7. Is this suitable for industrial applications?
Ans: Yes, it is designed for heavy-duty industrial, commercial, & backup power systems.
Overview
| Rated Operational Current (A) | 250 |
|---|---|
| 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) | 16000 |
| Rated Insulation Voltage Ui (V) | 1000 |
| Short Time Withstand for 1sec (kA) | 16 |
| Rated Operational Power (kW) | 132 |
| Rated Breaking Capacity@AC-23A (A) | 2000 |
Detopsy electricalshop is a major dealer and supplier of L & K Breakers
We are located in PORTHARCOURT, ABUJA and LAGOS
Call: 09050234845
Email: [email protected]
for more breakers, visit Circuit Breakers – Circuit Breaker Store Archives – Detopsy Electric
