Bussmann Time Delay Fuse LPS-RK Series 175A 600VAC/300VDC Class RK1 Dual Element Blade End Current Limiting

Bussmann Time Delay Fuse LPS-RK Series 175A 600VAC/300VDC Class RK1 Dual Element Blade End Current Limiting

Professional-Grade Low-Peak Current Limiting Electrical Protection

The Bussmann LPS-RK Series 175A Time Delay Fuse delivers superior electrical protection and circuit safety for motor circuits, transformer protection, and industrial power distribution systems. This Class RK1 current limiting fuse features dual element time delay technology with blade end connections 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

• 175A Current Rating - Handles high amperage loads with precise overcurrent protection for motor and transformer circuits
• Class RK1 Current Limiting - Reduces available fault current to protect downstream equipment and minimize arc flash hazards
• Dual Element Design - Provides time delay for motor starting currents while offering fast response to short circuit faults
• 600VAC/300VDC Voltage Rating - Versatile voltage capability for AC and DC electrical systems in industrial applications

Safety & Standards Compliance

• 100 kAIC Interrupt Rating at 300VDC - High fault current interrupting capability ensures safe fault clearing in demanding applications
• CE Marked Compliance - Meets international electrical safety standards for global installations
• Non-Indicating Design - Professional grade construction with reliable operation indication through external monitoring systems

Technical Specifications

175 ampere current rating, 600VAC/300VDC voltage rating, 100 kAIC interrupt rating at 300VDC, Class RK1 current limiting classification, dual element time delay operation, blade end x blade end connection, dimensions 1.61" H x 1.61" W x 9.63" L, weight 1.5 lb, electrically isolated end cap construction, non-indicating operation.

Installation & Setup

1. Verify electrical system is de-energized and follow lockout/tagout procedures for safe fuse installation
2. Confirm fuse holder compatibility with blade end connection and Class RK1 rejection features
3. Insert fuse into holder ensuring proper blade contact alignment and secure mechanical connection
4. Verify fuse amperage rating matches circuit protection requirements and motor full load current calculations
5. Test installation with appropriate electrical testing equipment before energizing circuit
6. Document fuse installation per NEC requirements and facility electrical maintenance procedures

Professional Applications

Ideal for:

• Motor Protection Circuits - Large motor starters, variable frequency drives, and motor control centers requiring time delay protection
• Transformer Primary Protection - Distribution transformers, control transformers, and power supply protection systems
• Industrial Control Panels - Manufacturing equipment, process control systems, and automated machinery protection
• Power Distribution Systems - Electrical panels, switchgear, and distribution boards in commercial and industrial facilities
• Lighting Circuit Protection - High intensity discharge lighting, LED driver circuits, and commercial lighting systems
• HVAC Equipment Protection - Air handling units, chillers, and building automation system electrical protection
• Welding Equipment Circuits - Industrial welding systems and high current DC applications requiring dual voltage capability
• Battery System Protection - DC power systems, UPS equipment, and renewable energy storage applications

Low-Peak Current Limiting Advantage

Bussmann LPS-RK series fuses utilize advanced current limiting technology that reduces peak let-through current and energy, minimizing damage to electrical equipment during fault conditions. The dual element design provides excellent time delay characteristics for motor starting while maintaining fast fault clearing capability, ensuring optimal selective coordination in electrical distribution systems.

Why Choose Bussmann Quality?

Bussmann demonstrates unwavering commitment to electrical safety through rigorous testing, international compliance standards, and reliable overcurrent protection technology. Each LPS-RK series fuse undergoes comprehensive quality control testing to ensure consistent performance in professional electrical installations, providing the circuit protection reliability and electrical system safety that contractors and facility managers require for critical applications.