ECNR70 - 70 Amp Fuse

ECNR70 - 70 Amp Fuse

In real-world electrical systems, loads rarely behave in a perfectly steady way. Motors start, compressors kick on, transformers energize, and all of those normal events create short bursts of current that can easily cause the wrong type of protection device to trip. The Eaton Edison ECNR70 Fuse is designed specifically for those conditions, giving you 70 Amp Class RK5 dual-element time-delay protection that balances everyday operational flexibility with dependable fault protection.

Instead of reacting to harmless startup surges, this fuse is built to “ride through” those brief inrush conditions. That means equipment can power up normally without unnecessary interruptions. But when a real overload or short circuit occurs, it responds quickly to help protect wiring, equipment, and downstream components from damage.

That balance is exactly why RK5 dual-element fuses are so widely used in industrial and commercial systems. The ECNR70 helps reduce nuisance fuse openings, minimizes unexpected downtime, and supports smoother, more consistent system operation—especially in environments where motors and inductive loads are frequently cycling on and off.

Key Features and Benefits

• 70 Amp Class RK5 fuse for commercial and industrial electrical systems
• Dual-element time-delay design helps handle motor and transformer inrush currents
• Reduces nuisance fuse openings during normal equipment startup
• High 200 kAIC interrupting rating for strong fault-current protection
• Rated for 250 VAC and 125 VDC applications
• Helps improve system uptime and reduce unplanned maintenance interruptions
• Ideal for motors, HVAC systems, transformers, and industrial machinery
• Non-indicating design for straightforward field replacement
• Built for reliable performance in demanding electrical environments

Technical Specifications

• Manufacturer: Eaton
  
• Series: Edison ECNR
  
• Catalog Number: ECNR70
  
• UPC: 782634507406
  
• Product Type: Fuse
  
• Fuse Class: RK5
  
• Amperage Rating: 70 A
  
• Voltage Rating: 250 VAC / 125 VDC
  
• Interrupt Rating: 200 kAIC
  
• Response Time: 10 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 ECNR70 is CE Marked, confirming compliance with recognized international safety and performance standards. It is manufactured under Eaton’s quality systems and is intended for use in properly rated electrical installations following applicable codes and engineering practices.

Where It Works Best

The ECNR70 is commonly used in environments where electrical loads fluctuate and reliable protection is essential for continuous operation:

• Motor control centers (MCCs)
• Industrial machinery and production systems
• HVAC and refrigeration equipment
• Transformer and inductive load circuits
• Commercial electrical distribution systems
• Pump and compressor systems
• OEM equipment installations
• Industrial automation systems
• Facility maintenance and electrical upgrades requiring a 70A RK5 fuse

For systems that need to handle everyday startup surges without interruption—but still require fast, dependable protection when faults occur—the Eaton Edison ECNR70 delivers consistent, real-world performance you can rely on.