ECNR9 - 9 Amp Fuse

ECNR9 - 9 Amp Fuse

In real electrical systems, even low-amperage circuits don’t always behave perfectly. Equipment starts up, control systems cycle on, and that brief surge of current can sometimes cause more problems than expected. The Eaton Edison ECNR9 Fuse is designed specifically for those situations—giving you 9 Amp Class RK5 dual-element time-delay protection that keeps things running smoothly without unnecessary interruptions.

Here’s the practical side of it: when equipment powers up, a short burst of current is completely normal. Motors, control transformers, and automation systems all do it. The ECNR9 is built to recognize that difference. It allows those harmless startup surges to pass without tripping, so your system starts the way it’s supposed to. But if something actually goes wrong—like a sustained overload or short circuit—it responds quickly to help protect your wiring, equipment, and downstream components.

That’s the real advantage of RK5 dual-element design. It’s not just about protection—it’s about avoiding unnecessary downtime. In day-to-day operation, that means fewer nuisance fuse openings, less troubleshooting, and more reliable performance across your system.

Key Features and Benefits

• 9 Amp Class RK5 fuse designed for control and low-amperage circuits
• Dual-element time-delay design helps manage normal startup inrush currents
• Reduces nuisance fuse openings and unexpected downtime
• High 200 kAIC interrupting rating for strong fault protection capability
• Rated for 250 VAC and 125 VDC applications
• Helps improve system uptime and operational reliability
• Ideal for OEM equipment, automation systems, and control panels
• Non-indicating design for quick and simple replacement
• Built for dependable performance in real-world industrial environments

Technical Specifications

• Manufacturer: Eaton
  
• Series: Edison ECNR
  
• Catalog Number: ECNR9
  
• UPC: 782634507277
  
• Product Type: Fuse
  
• Fuse Class: RK5
  
• Amperage Rating: 9 A
  
• Voltage Rating: 250 VAC / 125 VDC
  
• Interrupt Rating: 200 kAIC
  
• Response Time: 8 seconds at 500% overload
  
• Number of Elements: Dual-element
  
• Fuse Indicator: Non-indicating
  
• Special Features: Non current limiting
  
• Dimensions: 5.88 in L × 1.6 in W × 1.6 in H
  
• Weight: 0.3 lb
  
• Packaging Type: Standard
  

Material Compliance and Certifications

The Eaton ECNR9 is CE Marked, confirming compliance with recognized international safety and performance standards. It’s manufactured under Eaton’s quality systems and intended for properly rated electrical installations following applicable codes and installation practices.

Where It Works Best

The ECNR9 is commonly used in systems where low-amperage circuits still need stable startup performance and dependable protection:

• Industrial control panels
• PLC and automation systems
• Control transformers and auxiliary circuits
• OEM machinery and equipment
• HVAC control systems
• Electrical distribution and control circuits
• Manufacturing equipment
• Maintenance and replacement of RK5 low-amp fuses

When you need a fuse that won’t overreact to normal startup conditions—but will act fast when something is actually wrong—the Eaton Edison ECNR9 is a reliable, field-proven choice built for everyday industrial use.