Overview
The Eaton Edison ECNR10 is an industrial-grade time-delay current-limiting fuse rated at 10A, 250V AC / 125V DC, Class RK5. This dual-element fuse is designed to protect AC power distribution systems, motor circuits, and transformer feeders where inductive and non-inductive loads require coordinated overcurrent protection.
Key Features
- Dual-element time-delay design minimizes nuisance trips on motor startup surges
- Class RK5 rejection cartridge fits standard RK5 fuse holders
- 200kAIC interrupt rating at 250V, 20kAIC at 125V DC
- 8-second minimum time-delay at 500% rated current (250V, 30A and less)
- Non-indicating ferrule-end construction
- UL 248-12 certified, CSA approved
Technical Specifications
| Current Rating | 10A |
| Voltage Rating | 250V AC / 125V DC |
| Class | RK5 |
| Type | Dual-Element Time-Delay |
| Interrupt Rating | 200kAIC @ 250V, 20kAIC @ 125V DC |
| Body Style | Cylindrical Cartridge |
| Length | 2 inches |
| Diameter | 9/16 inch |
| End Type | Ferrule x Ferrule |
| Time-Delay | 8 seconds @ 500% |
| Standards | UL 248-12, CE, CSA Class 1422-01 |
| Manufacturer | Eaton (Bussmann) |
Typical Applications
- AC power distribution mains and branch circuits protecting motors and transformers
- HVAC systems requiring coordinated motor protection
- Industrial equipment with inductive loads up to 200,000 RMS symmetrical amperes available fault current
- Heating and lighting circuits on properly sized feeders
Compatibility & Replacements
Compatible With
- RK5 Class fuse blocks and rejection-style cartridge holders
- Standard 250V AC power distribution systems
- Motor control centers and disconnect switches rated for Class RK5
- Eaton Bussmann R250 fuse block series
Replaces / Drop-In Replacement For
- Edison ECNR10 (original manufacturer designation)
- Littelfuse FLNR 10A 250V Class RK5
- Mersen/Ferraz Shawmut TR 10A 250V
- Bussmann FRN-R 10A 250V (functionally equivalent)
Works With
- Any RK5-rated industrial fuse holder or block
- Standard 250V AC motor control and distribution equipment
- Thermal-magnetic overload relays for coordinated protection
