Reliance ECNR2-1/4 250V Time Delay Fuse Class K5 Current Limiting – Lot of 5
The Reliance ECNR2-1/4 is a dual-element, time-delay fuse designed for optimal protection in AC power distribution systems. This Class K5 fuse operates at 250 volts and is rated for 2.25 amperes, making it suitable for various applications, including motors, transformers, service entrance equipment, feeders, and branch circuits.
Key Features
- Time-Delay Functionality: Safely manages harmless starting currents and inrush currents associated with modern motors and transformers, preventing unnecessary fuse openings.
- Current-Limiting Design: Provides superior short-circuit protection by limiting the peak let-through current, thereby safeguarding connected equipment.
- Dual-Element Construction: Allows for sizing at 125% of full load amperes (FLA) for motor backup protection, enhancing system reliability.
- High Interrupting Capacity: With an interrupting rating of 200,000 RMS symmetrical amperes, it ensures robust performance under fault conditions.
- Versatile Application: Ideal for both inductive loads (such as motors and transformers) and non-inductive loads (like lighting and heating), offering broad usability.
Specifications
- Voltage Rating: 250 VAC / 125 VDC
- Current Rating: 2.25 A
- Interrupting Rating: 200 kA RMS Symmetrical
- Response Time: 8 seconds at 500% load
- Body Dimensions: 0.56 inches in diameter x 2 inches in length
- Terminal Type: Ferrule
- Material: Fiberglass body for enhanced durability
This product is offered in a lot of five fuses, providing a cost-effective solution for maintaining and protecting your electrical systems. The ECNR2-1/4 fuse’s superior overload and cycling capabilities make it a reliable choice for various industrial and commercial applications.

















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