Bussmann LPN-RK-90SP Low Peak Class RK1 Time-Delay Fuse, 90A

Bussmann LPN-RK-90SP Low Peak Class RK1 Time-Delay Fuse, 90A

The Bussmann LPN-RK-90SP Low-Peak fuse is a Class RK1, current-limiting, time-delay fuse rated 90A at 250 Vac/250 Vdc, built for large distribution switchboards, power panelboards, and motor control centers. Its dual-element design pairs reliable overload time-delay with fast current-limiting short-circuit response, and a blade end x blade end connection provides a secure, direct fit in compatible fuse holders. A 300 kAIC interrupt rating at 250 Vac (100 kAIC at 250 Vdc) delivers robust protection for demanding industrial and commercial circuits.

Key Features

• Amperage Rating: 90A, sized for large distribution switchboards, power panelboards, and motor control centers.
• Class RK1 Design: Current-limiting, time-delay construction for dependable overcurrent protection.
• Dual-Element Construction: Combines time-delay overload protection with current-limiting short-circuit response.
• Voltage Rating: 250 Vac, 250 Vdc for both AC and DC circuit applications.
• Interrupt Rating: 300 kAIC at 250 Vac and 100 kAIC at 250 Vdc for high fault-current environments.
• Connection: Blade end x blade end for a secure fit in compatible fuse blocks and holders.
• Special Features: Electrically isolated end cap for added safety during handling and installation.
• Fuse Indicator: Non-indicating design.

Technical Specifications

• Amperage Rating: 90A
• Application: Large distribution switchboards, power panelboards, motor control centers
• Class: Class RK1
• Connection: Blade end X blade end
• Fuse Indicator: Non Indicating
• Interrupt Rating: 300 kAIC at 250 Vac, 100 kAIC at 250 Vdc
• Number Of Elements: Dual
• Packaging Type: Standard
• Special Features: Electrically isolated end cap
• Voltage Rating: 250 Vac, 250 Vdc
• Product Type: Current-limiting, Time-delay
• Product Details: Current-limiting, Time-delay
• Product Length: 5.88 IN
• Product Diameter: 1.11 IN
• Product Height: 1.1 IN
• Product Width: 1.1 IN
• Product Weight: .32 LB
• Item Quantity: Carton: 5

Typical Applications

• Large Distribution Switchboards
• Power Panelboards
• Motor Control Centers
• Industrial and Commercial Overcurrent Protection
• Short-Circuit and Overload Protection for Branch Circuits

Why Bussmann?

Bussmann Low-Peak fuses like the LPN-RK-90SP are engineered with dual-element, Class RK1 construction to deliver both time-delay overload protection and current-limiting short-circuit performance in one device. The electrically isolated end cap and blade end x blade end connection support safer handling and a secure installation, while the 300 kAIC interrupt rating at 250 Vac helps protect switchboards, panelboards, and motor control centers in demanding electrical systems.