Overview
The Bussmann LPJ-2SP is an industry-standard Low-Peak Class J dual-element, time-delay, current-limiting fuse designed for electrical circuit protection in industrial and commercial environments. This non-indicating fuse features a 2 A rating with an interrupting rating of 300 kA at 600 Vac and 100 kA at 300 Vdc. The LPJ-2SP combines overload and short-circuit protection in a single cartridge element, making it an efficient solution for reducing fuse inventory while maintaining reliable protection.
Key Features
- Bussmann series Ultimate protection LPJ Class J dual element, current-limiting, time-delay fuses with 10 seconds (minimum) time-delay at 500% of rated current
- Separate overload and short circuit elements provide time delay for sizing of high inrush loads linked with class J current limitation
- Selective co-ordination ratio of 2:1 (within Low-Peak fuse family) prevents electrical shutdowns from extending beyond the failed circuit
- Dual element fuses have lower resistance than ordinary fuses, hence they run cooler
- cULus Listed and compliant with UL 248-8 – Class J Fuses and CSA C22.2 No. 248.8
- RoHS Compliant
Technical Specifications
- Amperage: 2 A
- Voltage Rating: 600 VAC / 300 VDC
- Interrupting Rating: 300 kA at 600 Vac and 100 kA at 300 Vdc
- Class: J (UL Class J)
- Type: Dual Element, Time-Delay (Slow-Blow)
- Response: 10 s at 500% rated current
- Body Type: Cylindrical, 0.81 in Dia x 2.25 in L
- Terminal: Ferrule, Holder Mount
- Material: Melamine
- Current Type: AC/DC
- Series: LPJ (Low-Peak)
Typical Applications
- Branch circuit breaker panelboard mains protection
- Industrial control applications
- Machinery disconnects and power panelboard applications
- Motor circuits requiring high inrush current tolerance
- Safety and security systems
- Selective coordination installations with series-rated combinations
Compatibility & Replacements
Compatible With
- Standard Class J fuse blocks and holders rated 600V
- Eaton/Bussmann LPJ series compatibility (1-60A range)
- Industrial control panels and branch circuit panelboards
- Motor control centers with Class J rejection
- 600 VAC 3-phase and single-phase power distribution systems
Replaces / Drop-In Replacement For
- Similar Product: Littelfuse JTD 2 Fuse (verify compatibility with your system integrator)
- Legacy Bussmann LPJ-2 (same specifications, updated catalog designation LPJ-2SP)
Works With
- Eaton Bussmann Low-Peak LPJ series fuses (1-60A range for selective coordination)
- Standard Class J fuse rejection systems per UL 248-8
- Series combination ratings with branch circuit breakers allows broad range of coverage, independent of breaker manufacturer
- CSA-certified installations (CSA C22.2 No. 248.8)
