Overview
The ECNR1.5 1.5A fuse is a Class RK5 dual-element, time-delay fuse designed for industrial electrical circuits requiring reliable protection. Manufactured by Eaton (Edison/Bussmann series), this fuse combines superior overload and cycling capability with current-limiting performance, making it ideal for motor protection and circuit safeguarding in control panels, PLCs, and automation equipment.
Key Features
- Dual-element, time-delay design for motor inrush tolerance and overload protection
- Class RK5 rated for 250Vac / 125Vdc operation
- 200 kAIC (kiloamperes interrupting capacity) for enhanced circuit safety
- Ferrule end connection (0.56″ diameter) for standard fuse holders
- Non-indicating design—no visible status window
- Responds in 8 seconds at 500% of rated current
Technical Specifications
- Amperage Rating: 1.5A
- Voltage Rating: 250Vac / 125Vdc
- Class: RK5
- Type: Dual-element, time-delay (slow-blow)
- Interrupting Rating: 200 kAIC at 250V
- Body Diameter: 0.56 inches
- Connection: Ferrule end x ferrule end
- Responding Time: 8 seconds at 500% rated current
- Indicating: Non-indicating
- Quantity per Package: 9 fuses
Typical Applications
The ECNR1.5 fuse is widely used in:
- Industrial motor control circuits and variable frequency drives
- PLC and programmable logic controller power supplies
- Automation equipment and robotic systems
- Panel-mounted switchgear and disconnect switches
- DC and AC circuit protection in control systems
- Equipment rated for 1.5A nominal load with inrush protection needs
Compatibility & Replacements
Compatible With
- Standard 0.56″ diameter ferrule-end fuse holders
- Eaton/Bussmann Class RK5 fuse blocks and clips
- Industrial control panels and electrical enclosures rated for 250Vac / 125Vdc
- Motor starters and contactor circuits
- Power distribution units and circuit protection devices
Replaces / Drop-In Replacement For
- ECNR1-1/2 (alternative designation for ECNR1.5)
- Equivalent Class RK5 1.5A time-delay fuses from competing manufacturers
- Any legacy 1.5A Class RK5 ferrule-end fuse in 250V / 125Vdc circuits
Works With
- Eaton Edison ECNR series fuse holders and blocks
- Class RK5 rated electrical enclosures and panels
- Industrial automation systems (Allen-Bradley, Siemens, Mitsubishi, Omron)
- Motor protection relays and overload devices
- Standard 250Vac / 125Vdc industrial circuits
