Bussmann LPN-RK Low-Peak Class RK1 Time-Delay Fuse, Dual-Element

Bussmann LPN-RK Low-Peak Class RK1 Time-Delay Fuse, Dual-Element

The Bussmann LPN-RK series is a Class RK1 dual-element time-delay fuse line built for current-limiting overcurrent protection, available in 28 amperage ratings spanning 1A through 600A to match a wide range of circuit protection needs. Every fuse in the series carries a 250 Vac / 250 Vdc voltage rating with a 300 kAIC interrupt rating, and features blade end connections plus electrically isolated end caps for safer handling during installation and maintenance. RoHS compliant construction supports professional electrical work that demands dependable, code-compliant fault protection.

Key Features

• Amp Rating Range: Choose from 28 ratings spanning 1A to 600A, covering protection needs from small control circuits up to heavy feeder and service applications.
• Class RK1 Current-Limiting Performance: Delivers superior current-limiting characteristics with high interrupt capacity for enhanced downstream equipment protection.
• Dual-Element Time Delay: The dual-element design lets the fuse ride through temporary overloads such as motor starting or transformer inrush while still opening quickly on true faults.
• 300 kAIC Interrupt Rating: Rated 250 Vac / 250 Vdc with a 300 kAIC interrupt rating for safe operation on high fault-current systems.
• Blade End Connections: Blade end x blade end terminals ensure a secure, reliable fit in compatible fuse holders and disconnects.
• Electrically Isolated End Caps: Reduces the risk of accidental contact during installation, inspection, and maintenance.
• Non-Indicating Design: Standard non-indicating fuse body suited for routine stocking and replacement use.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• Product Type: Time Delay Fuses
• Class: RK1
• Connection: Blade end x blade end
• Fuse Indicator: Non-indicating
• Fuse Type: Time delay
• Interrupt Rating: 300 kAIC at 250 Vac
• Number Of Elements: Dual
• Voltage Rating: 250 Vac, 250 Vdc
• Special Features: Electrically isolated end cap
• Compliances: RoHS Compliant
• Amp Rating Options: 1A-600A across 28 ratings (1A, 4A, 6A, 10A, 15A, 20A, 25A, 35A, 40A, 45A, 50A, 70A, 80A, 90A, 100A, 110A, 125A, 150A, 175A, 200A, 225A, 250A, 300A, 350A, 400A, 450A, 500A, 600A)

Typical Applications

• Industrial Motor Protection and Control Circuits
• Commercial HVAC and Lighting Systems
• Manufacturing Equipment and Process Control
• Electrical Distribution Panels and Switchgear
• Power Distribution Systems
• Maintenance and Replacement Applications

Why Bussmann?

Bussmann backs the LPN-RK series with RoHS compliant construction, dual-element time-delay operation, and Class RK1 current-limiting performance across the full 1A to 600A range, letting electricians standardize on one trusted fuse family for a wide span of overcurrent protection needs. Blade end connections and electrically isolated end caps reflect the same attention to safe, reliable installation professionals expect from Bussmann.