ECSR250 - 250Amp Fuse

ECSR250 - 250Amp Fuse

The ECSR250 Eaton Edison fuse is the kind of component you typically rely on in systems where downtime just isn’t an option. It’s a 250-amp, Class RK5 dual-element fuse used in industrial and commercial power setups where motors, transformers, and distribution equipment all need dependable protection.

You’ll usually see the ECSR250 in motor control centers, feeder circuits, and main distribution panels. It’s rated for 600V with a 200kA interrupting rating, so it’s built to handle serious fault conditions without failing under pressure. When something does go wrong, it reacts quickly enough to help protect downstream equipment from damage.

It also has a finger-safe design, which makes handling and replacement a bit more comfortable, especially in tight or busy panel environments. And since it follows the Class RK5 standard, it fits into common fuse blocks and works well in existing setups without modification.

Key Features and Benefits

• 250A Class RK5 dual-element fuse for industrial and commercial systems
• 600V rating for use in higher-voltage distribution setups
• Time-delay design helps ride through motor startup surges
• 200kA interrupting rating for strong fault protection capability
• Dual-element design improves coordination with other protective devices
• Finger-safe construction for safer handling during maintenance
• Fits standard RK5 fuse holders and blocks
• Helps reduce nuisance blowing in real-world operating conditions
• Commonly used in motor, transformer, and feeder protection circuits
• Built for dependable performance in demanding environments

Technical Specifications

• Catalog Number: ECSR250
• Product Type: Fuse
• Class: RK5
• Amperage Rating: 250A
• Voltage Rating: 600V AC
• Interrupt Rating: 200 kAIC
• Element Type: Dual-element
• Response Time: 10 seconds at 500% overload
• Fuse Indicator: Non-indicating
• Special Features: Finger-safe construction
• Dimensions: 5 in (L) x 0.81 in (W) x 0.81 in (H)
• Weight: 0.4 lb
• Packaging Type: Standard

Material Compliance and Certifications

The ECSR250 Eaton Edison fuse is CE marked, meeting recognized safety and compliance standards for industrial electrical components. It’s intended for professional use in properly designed electrical systems and should be installed by qualified electricians following all applicable codes.

Where It Works Best

• Motor control centers (MCCs)
• Industrial and commercial distribution panels
• Transformer and feeder circuits
• HVAC and large motor loads
• Systems with frequent motor startups
• Power distribution setups requiring coordination between devices
• Facilities needing high fault current protection
• General industrial overcurrent protection applications