Bussmann LPJ-80SP Class J Low-Peak dual-element time-delay fuse

The Bussmann LPJ-80SP is an 80-amp, Class J, Low-Peak™ dual-element time-delay fuse designed to provide superior protection for electrical systems.

Key Features

• Dual-Element Design: Incorporates separate overload and short-circuit elements, offering a minimum 10-second time delay at 500% of rated current, ideal for high inrush loads. ([eatonbussmann.net](https://eatonbussmann.net/products/Low_Voltage__Branch_Circuit_Rated_Fu/LPJ_SP_Class_J_Low_Peak_Dual_element_Time_delay_Fuses_121.html?utm_source=openai))
• High Interrupting Rating: Capable of interrupting up to 300,000 amperes at 600 VAC and 100,000 amperes at 300 VDC, ensuring robust protection against overcurrents. ([eaton.com](https://www.eaton.com/us/en-us/skuPage.LPJ-80SPI.html?utm_source=openai))
• Selective Coordination: Maintains a consistent 2:1 ampacity ratio within the Low-Peak fuse family, preventing electrical shutdowns from extending beyond the affected circuit. ([eatonbussmann.net](https://eatonbussmann.net/products/Low_Voltage__Branch_Circuit_Rated_Fu/LPJ_SP_Class_J_Low_Peak_Dual_element_Time_delay_Fuses_121.html?utm_source=openai))
• Current Limitation: Protects downstream components by reducing the thermal and magnetic effects of short-circuit currents. ([eatonbussmann.net](https://eatonbussmann.net/products/Low_Voltage__Branch_Circuit_Rated_Fu/LPJ_SP_Class_J_Low_Peak_Dual_element_Time_delay_Fuses_121.html?utm_source=openai))
• Space-Saving Design: Compact dimensions facilitate equipment downsizing without compromising performance. ([eatonbussmann.net](https://eatonbussmann.net/products/Low_Voltage__Branch_Circuit_Rated_Fu/LPJ_SP_Class_J_Low_Peak_Dual_element_Time_delay_Fuses_121.html?utm_source=openai))

Specifications

• Amperage Rating: 80 A
• Voltage Rating: 600 VAC / 300 VDC
• Interrupting Rating: 300 kA at 600 VAC; 100 kA at 300 VDC
• Response Time: 10 seconds at 500% of rated current
• Body Dimensions: 1.13 inches in diameter x 4.63 inches in length
• Material: Melamine body with bolted blade terminals

Applications

• Power panelboards
• Branch circuit breaker panelboard mains
• Machinery disconnects
• Industrial control systems

The LPJ-80SP fuse is UL Listed, CSA Certified, CE Marked, and RoHS Compliant, ensuring adherence to stringent safety and environmental standards. ([eaton.com](https://www.eaton.com/us/en-us/skuPage.LPJ-80SPI.html?utm_source=openai))

By upgrading to Low-Peak fuses like the LPJ-80SP, users can reduce existing fuse inventory by up to 33%, streamline maintenance, and enhance system reliability. ([eatonbussmann.net](https://eatonbussmann.net/products/Low_Voltage__Branch_Circuit_Rated_Fu/LPJ_SP_Class_J_Low_Peak_Dual_element_Time_delay_Fuses_121.html?utm_source=openai))