Overview
The Reliance Electric ECNR 2-1/4 is a Class RK5 industrial fuse engineered for reliable circuit protection in motor control and power distribution applications. This dual-element time-delay design minimizes nuisance trips while providing fast response to fault conditions. Rated at 2.25A and 250V, the ECNR 2-1/4 is ideal for protecting low-amperage control circuits, solenoids, and auxiliary equipment in industrial automation and manufacturing systems.
Key Features
- Dual-element time-delay design for controlled response to inrush currents
- Class RK5 current-limiting protection rated for 250V AC
- Economical construction without sacrificing reliability
- Compact form factor suitable for standard fuse holders and enclosures
- Box of 6 units for convenient inventory and replacement
Technical Specifications
- Voltage Rating: 250V AC
- Amperage Rating: 2.25A (2-1/4A)
- Fuse Type: Dual-element time delay
- Classification: Class RK5 current-limiting
- Manufacturer: Reliance Electric
- Part Number: ECNR 2-1/4
- Quantity Per Box: 6 fuses
- Operating Environment: Industrial/Commercial
Typical Applications
The ECNR 2-1/4 fuse is commonly used in:
- Motor control circuits and starter protection
- Control transformer secondary circuits
- Auxiliary control equipment in automation systems
- Low-amperage distribution in industrial panels
- Solenoid and valve control circuits
- Instrumentation and monitoring equipment protection
Compatibility & Replacements
Compatible With
- Standard cartridge fuse holders rated 250V
- Industrial control panels and power distribution enclosures
- Motor control centers (MCC) rated for Class RK5 fuses
- Allen-Bradley, Siemens, and other standard PLC control equipment
- Transformer protection circuits (250V AC)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The ECNR 2-1/4 is compatible with standard Class RK5 250V fuse slots; confirm amperage and voltage ratings match your circuit requirements.
Works With
- Standard North American fuse holders and cartridge blocks
- Industrial electrical distribution systems rated 250V AC
- Time-delay fuse-rated control circuits
- Current-limiting protection schemes in Class RK5 applications
