Overview
The Bussmann JJS-10 is a Class T current-limiting fuse designed for high-fault industrial and commercial electrical systems. Manufactured by Eaton Bussmann as part of the Limitron T-Tron series, this fast-acting fuse delivers advanced circuit protection with minimal voltage drop and compact mounting footprint. The lot includes 2 units to cover multiple applications or provide replacements.
Key Features
- Provides 10X better current limitation to help prevent equipment damage caused by short-circuit events
- 200 kA Interrupting rating complies with NEC® Section 110.9 for large capacity systems; small, space-saving fuses provide high degree of current limitation on short-circuits
- Very Fast Acting blow characteristic ideal for VFD line protection and sensitive electronics
- Ferrule terminal, holder mount cartridge body type with melamine construction
- Non-indicating, non-rejection design for standard Class T fuse holders
Technical Specifications
- Current Rating: 10A
- Voltage Rating: 600VAC
- Class: Class T (fast-acting)
- Interrupting Rating: 200kA at 600V
- Physical Size: 0.56″ × 1.5″ (ferrule end)
- Series: JJS Limitron
- Body Material: Melamine cartridge
- Terminal Type: Ferrule-end to ferrule-end
- UL Listed per Standard 248-15, Guide JDDZ, File E4273
- CSA Certified per C22.2
Typical Applications
- Branch circuit protection in industrial control panels and switchboards
- VFD (variable frequency drive) line protection and motor control circuits
- Commercial power distribution systems with high short-circuit current capacity
- Critical load protection requiring advanced current limitation
- Equipment retrofits and maintenance replacements in existing installations
Compatibility & Replacements
Compatible With
- Standard Class T fuse holders (ferrule-end type)
- Industrial control panels and electrical enclosures
- UL and CSA certified electrical systems rated for Class T protection
- Systems with 600VAC nominal voltage
- Power distribution equipment and motor starters
Replaces / Drop-In Replacement For
- Earlier Bussmann/Cooper Bussmann JJS-10 units
- Legacy Class T 10A fuses requiring 200kA interrupting rating
- OEM equipment calling for JJS-10 specification
Works With
- Class T fuse holders and cartridge-style receptacles
- Industrial electrical systems rated 600VAC
- Power factor correction and harmonic mitigation equipment
- NFPA 70 (National Electrical Code) compliant installations
