Overview
The Bussmann LPJ-10SP is a Low-Peak™ Class J dual-element, time-delay fuse designed for industrial and control applications requiring simultaneous motor overload and short-circuit protection. Bussmann® series Ultimate protection LPJ Class J dual element, current-limiting, time-delay fuses available with optional open fuse indication. This 10-amp fuse delivers selective coordination and fast response to fault conditions while minimizing nuisance trips from inrush currents.
Key Features
- Time-delay – 10 seconds (minimum) at 500% of rated current
- Fast short-circuit protection and dual-element, time-delay performance provide ultimate protection. Current-limitation protects downstream components against damaging thermal and magnetic effects of short-circuit currents.
- Dual-element fuses have lower resistance than ordinary fuses so they run cooler.
- Consistent 2:1 ampacity ratios for all Low-Peak fuse make selective coordination easy.
- Reduces existing fuse inventory by up to 33% when upgrading to Low-Peak fuses.
Technical Specifications
The LPJ-10SP delivers dependable performance across a broad range of industrial electrical systems:
- 600Vac and 300Vdc, with IR 300kA Vac RMS Sym. and 100kA Vdc
- Ferrule terminal design for secure installation
- Dimensions: 2.25 in. L x 0.81 in. Dia.
- cULus Listed file No. JDDZ.E4273 and UL 248-8 – Class J Fuses. CSA C22.2 No. 248.8 – Class J Fuses
- CE and RoHS compliant
Typical Applications
The LPJ-10SP is ideal for:
- Motor circuits requiring overload and short-circuit protection
- Industrial control panels and switchgear
- HVAC systems and machinery controls
- Distribution systems where selective coordination is critical
- Backup protection against motor burnout from overload or single-phasing if other overload protective devices fail
Compatibility & Replacements
Compatible With
- Class J fuse holders and bases rated for 600V
- Industrial control systems and motor starter panels
- Power distribution equipment requiring dual-element fuses
- Selective coordination systems with 2:1 ampacity ratios
Replaces / Drop-In Replacement For
- Other designations: LPJ10, LPJ 10 Amp, LPJ-10, LPJ 10A, LPJ10A, LPJ-10A, LPJ 10, LPJ10SP, LPJ-10SP, LPJ10-SP, LPJ-10-SP
- Previous generation Class J dual-element fuses in 10-amp ratings
Works With
- UL 248-8 compliant Class J fuse bases and holders
- Industrial automation and control systems
- Equipment requiring 600VAC/300VDC rated protection
- Selective coordination networks using Low-Peak fuse families
