Reliance ECNR 6/10 Time-Delay Current-Limiting Fuse Class RK5 – Box of 9
The Reliance ECNR 6/10 Time-Delay Current-Limiting Fuse is a dual-element, time-delay fuse designed to provide superior protection for both inductive and non-inductive loads. This Class RK5 fuse is ideal for safeguarding motors, transformers, lighting, and heating circuits against overloads, ground faults, and short circuits.
Key Features
- Dual-Element Construction: Allows for sizing at 125% of Full Load Amps (FLA) for motor backup protection, ensuring both high-performance short-circuit and overload protection.
- Time-Delay Capability: Provides a minimum time-delay of 10 seconds at 500% of the fuse rating, accommodating temporary motor overloads and surge currents without unnecessary fuse openings.
- Current-Limiting Design: Offers component short-circuit protection by limiting the let-through energy during fault conditions.
- High Interrupting Rating: Rated at 200,000 Amperes RMS Symmetrical, suitable for systems with high available fault currents.
- Versatile Application: Recommended for AC power distribution system mains, feeders, and branch circuits with inductive loads (motors, transformers) or non-inductive loads (lighting, heating).
Specifications
- Amperage Rating: 0.6 A
- Voltage Rating: 250 VAC / 125 VDC
- Interrupting Rating: 200 kAIC
- Response Time: 10 seconds at 500% of rated current
- Fuse Class: RK5
- Terminal Type: Ferrule
- Body Dimensions: 0.56 inches in diameter x 2 inches in length
Applications
The ECNR 6/10 fuse is suitable for a wide range of applications, including:
- Motor overload and short-circuit protection
- Protection of transformers and other inductive loads
- General-purpose circuits, including lighting and heating
- AC power distribution system mains, feeders, and branch circuits
Each box contains nine fuses, providing a convenient supply for maintenance and replacement needs.






















