ECSR4 - 4Amp Fuse

ECSR4 - 4Amp Fuse

When electrical equipment depends on consistent, reliable circuit protection, the Eaton ECSR4 delivers the performance professionals trust. This 4 Amp Class RK5 dual-element time-delay fuse is designed to protect motors, transformers, branch circuits, and other valuable electrical equipment from damaging overloads and short circuits without opening unnecessarily during normal startup conditions. Its time-delay design allows temporary inrush currents to pass, helping keep equipment running while reducing nuisance fuse replacements and costly downtime.

Whether you're performing scheduled maintenance, replacing a blown fuse, or upgrading an existing electrical system, the Eaton ECSR4 is built for dependable protection in demanding commercial and industrial environments. Rated for 600 volts with an impressive 200 kA interrupting capacity, this fuse is capable of safely interrupting high fault currents, providing an added layer of protection for both equipment and personnel.

Key Features and Benefits

• Protects electrical equipment from overloads and short circuits
• Dual-element time-delay design helps prevent nuisance fuse openings caused by temporary motor starting currents
• 4 Amp current rating for low-amperage industrial and commercial applications
• 600V AC voltage rating
• High 200 kA interrupting capacity (kAIC) for superior fault current protection
• Finger-safe construction enhances handling during installation and maintenance
• Non-indicating Class RK5 fuse
• Compatible with standard Class RK5 fuse holders and disconnects
• Trusted Eaton quality for dependable long-term circuit protection

Technical Specifications

• Manufacturer: Eaton
• Series: Edison ECSR
• Catalog Number: ECSR4
• Product Type: Class RK5 Fuse
• Amperage Rating: 4 Amps
• Voltage Rating: 600 VAC
• Interrupt Rating: 200 kAIC
• Fuse Class: RK5
• Element Type: Dual-element
• Response Time: 10 seconds at 500% overload
• Fuse Indicator: Non-indicating
• Special Features: Finger-safe construction
• Dimensions: 5.00 in. L × 0.81 in. W × 0.81 in. H
• Weight: 0.40 lb

Material Compliance and Certifications

• CE Marked
• Manufactured to meet applicable industry standards for electrical circuit protection
• Designed for installation in accordance with applicable electrical codes and manufacturer recommendations

Where It Works Best

• Motor control centers (MCCs)
• Industrial control panels
• Motor branch circuits
• Transformer protection
• HVAC equipment
• Manufacturing facilities
• Commercial buildings
• OEM electrical equipment
• Machinery requiring time-delay overcurrent protection
• Maintenance and replacement of existing Class RK5 fuse installations