ECSR3 - 3Amp Fuse

ECSR3 - 3Amp Fuse

The ECSR3 Eaton Edison fuse is a small amp fuse, but it still plays an important role in keeping electrical systems stable and protected. At 3 amps, it’s mainly used in control circuits, instrumentation setups, and other low-current applications where even a small fault can cause bigger problems if it’s not caught early.

What makes this fuse useful in real-world setups is how it behaves during normal operation. With its dual-element, time-delay design, it can handle short bursts of current—like what you get when equipment first powers up—without tripping right away. That helps avoid those frustrating nuisance blows that can shut a system down for no real reason. When a true overload or fault does happen, though, it reacts quickly to protect the circuit.

In day-to-day work, it’s the kind of fuse electricians don’t think twice about using because it fits standard Class RK5 fuse blocks and drops right into place. No special setup or modifications needed. The finger-safe design is another practical touch—it just makes handling a little safer and more comfortable when you’re working inside a crowded panel.

Key Features and Benefits

• 3A Class RK5 dual-element fuse for low-current protection
• 600V rating for industrial and commercial electrical systems
• Time-delay design helps ride through normal startup surges
• 200kA interrupt rating for strong fault protection
• Dual-element construction improves coordination in the system
• Finger-safe design for safer handling during install and maintenance
• Fits standard RK5 fuse holders and blocks
• Good fit for control and instrumentation circuits
• Helps reduce nuisance blowing in real-world conditions
• Reliable protection in compact electrical setups

Technical Specifications

• Catalog Number: ECSR3
• Product Type: Fuse
• Class: RK5
• Amperage Rating: 3A
• Voltage Rating: 600V AC
• Interrupt Rating: 200 kAIC
• Element Type: Dual-element
• Response Time: 10 sec 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 ECSR3 Eaton Edison fuse is CE marked, showing it meets recognized safety standards for electrical protection components. It’s intended for professional electrical use and should be installed by qualified personnel following applicable electrical codes.

Where It Works Best

• Electrical control panels
• Instrumentation and monitoring circuits
• Small motor and transformer protection
• Industrial automation systems
• Low-current sensitive equipment circuits
• Commercial panels using RK5 fuse blocks
• Coordinated protection systems
• General industrial control applications