Bussmann Time Delay Fuse LPN-RK Series 200A 250VAC/250VDC Class RK1 Current Limiting Blade End

Bussmann Time Delay Fuse LPN-RK Series 200A 250VAC/250VDC Class RK1 Current Limiting Blade End

Professional-Grade Current Limiting Electrical Protection

The Bussmann Time Delay Fuse LPN-RK Series delivers superior electrical protection and circuit safety for high-amperage motor and transformer applications. This Class RK1 time delay fuse features current-limiting technology with 300 kAIC interrupt rating designed for electrical contractors, industrial facilities, and commercial installations, providing the reliable overcurrent protection and industry-leading safety that electrical professionals demand.

Professional Features & Benefits

Current Limiting Protection

• 300 kAIC Interrupt Rating - Provides exceptional fault current clearing capability for high-power electrical systems
• Class RK1 Current Limiting Design - Reduces let-through energy and minimizes damage to downstream equipment during fault conditions
• Dual Element Construction - Combines time delay characteristics with fast short-circuit response for optimal motor protection
• 200 Ampere Rating - Handles high-current applications with reliable overcurrent protection at 250VAC/250VDC

Safety & Standards Compliance

• UL Listed Construction - Meets rigorous electrical safety standards for professional installations
• NEC Compliant Design - Ensures code compliance for commercial and industrial electrical systems
• RoHS Compliant Materials - Environmentally responsible construction meets international safety standards

Technical Specifications

200 ampere rating at 250VAC/250VDC, Class RK1 current limiting fuse with 300 kAIC interrupt rating at 250V and 100 kAIC at 250VDC. Dual element time delay construction with blade end connections. Compact dimensions: 1.61" H x 1.61" W x 7.13" L, weighing 0.69 lbs. Non-indicating design with electrically isolated end caps for enhanced safety.

Installation & Setup

1. Verify power is completely disconnected and use proper lockout/tagout procedures before installation
2. Inspect fuse holder and blade connections for proper alignment and secure contact surfaces
3. Insert fuse with blade ends fully seated in fuse holder, ensuring proper electrical connection
4. Verify amperage rating matches circuit protection requirements and load characteristics
5. Test installation with appropriate electrical testing equipment before energizing circuit
6. Document installation details and maintain proper fuse inventory for future replacements

Professional Applications

Ideal for:

• Motor Protection Circuits - Large motor starters, HVAC systems, and industrial machinery requiring time delay characteristics
• Transformer Protection - Power transformers, control transformers, and distribution equipment protection
• Industrial Control Panels - Manufacturing equipment, process control systems, and automation circuits
• Commercial Power Distribution - Building electrical systems, lighting panels, and facility power management
• Heavy Equipment Applications - Construction equipment, material handling systems, and industrial machinery
• Electrical Panel Protection - Main distribution panels, sub-panels, and electrical service equipment
• High-Current Circuits - Welding equipment, battery charging systems, and high-power electrical loads
• Emergency Power Systems - Generator circuits, UPS systems, and critical facility backup power

Current Limiting Technology Advantage

Bussmann's advanced current limiting technology provides superior arc suppression and fault clearing capability, reducing let-through energy during short-circuit conditions. The Class RK1 design ensures selective coordination with upstream and downstream protective devices, while the dual element construction offers optimal time delay characteristics for motor starting currents and fast response to dangerous fault conditions.

Why Choose Bussmann Quality?

Bussmann's commitment to UL listing and NEC compliance ensures reliable overcurrent protection for professional electrical installations. With decades of electrical safety innovation, Bussmann fuses provide the current limiting performance, selective coordination capability, and fault clearing reliability that electrical contractors and facility managers trust for critical power distribution and motor protection applications.