Overview
The Edison Bullet ECNR2.5 is a Class RK5 dual-element time-delay fuse engineered for reliable overcurrent protection in industrial and commercial power distribution systems. This 2.5A, 250V unit delivers robust circuit protection with extended time-delay characteristics, making it ideal for applications with inductive loads such as motors and transformers, as well as non-inductive loads including lighting and heating equipment.
Key Features
- Dual-Element Design: Time-delay construction provides 8-second minimum delay at 500% rated current, allowing inrush transients to clear without unnecessary nuisance trips
- Class RK5 Rating: 200 kA RMS symmetrical interrupt rating at 250VAC ensures reliable fault-current limitation
- Dual Voltage Support: Rated 250 VAC / 125 VDC for flexible system integration
- Ferrule Terminals: Standard ferrule-end design enables quick, secure insertion into Class RK5 fuse holders
- UL and CSA Certified: Meets UL 248-12 and CSA C22.2 safety standards
- Box of 5 Units: Single box provides five fuses for convenient stocking and replacement
Technical Specifications
The ECNR2.5 is engineered to protect power distribution equipment in demanding industrial environments. Standard ferrule construction ensures compatibility with industry-standard fuse holders. All units ship in original manufacturer packaging.
Typical Applications
- AC power distribution mains, feeders, and branch circuits
- Motor control circuits and motor starter protection
- Transformer protection in commercial and industrial facilities
- Lighting and HVAC distribution panels where inductive loads predominate
- Industrial machinery protection in manufacturing environments
- Backup fuse stock for field technicians and maintenance teams
Compatibility & Replacements
Compatible With
- Standard Class RK5 fuse holders (ferrule-end cartridge style)
- 250V AC power distribution systems up to 200 kAIC short-circuit capacity
- 125V DC systems requiring low-voltage protection
- Motor control centers and industrial control panels
- Distribution equipment rated for RK5 cartridge fuses
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The ECNR2.5 replaces equivalent 2.5A RK5 fuses with identical ferrule terminals and time-delay characteristics.
Works With
- Bussmann and competitor RK5-rated fuse holders
- Standard electrical panel cutout boxes rated for Class RK5
- Motor control equipment designed for 2.5A RK5 protection
- Industrial switches and disconnect equipment with cartridge-style fuse mounting
