ECSR20 - 20Amp Fuse

ECSR20 - 20Amp Fuse

If you’ve worked with electrical systems for any length of time, you know that current doesn’t always behave in a perfectly predictable way. Motors kick on, transformers energize, and equipment pulls a quick surge of power before settling into normal operation. That’s exactly where the Eaton Edison ECSR20 Fuse comes in—it’s designed to handle those everyday fluctuations without causing unnecessary downtime.

With a 600V rating and a 200 kAIC interrupt capacity, the ECSR20 is a solid choice for a wide range of commercial and industrial applications. You’ll often find it protecting control panels, HVAC systems, OEM machinery, and instrumentation circuits—basically anywhere consistent performance and dependable protection are key.

What really makes this fuse stand out is its dual-element design. It provides a controlled, time-delay response to temporary overloads while still reacting quickly enough when current levels exceed safe limits. That balance helps protect your equipment and wiring without disrupting normal operations.

Key Features and Benefits

• 20 Amp Class RK5 time-delay fuse for low-to-mid amperage circuit protection
• Dual-element design helps manage short-term inrush currents during startup
• Reduces nuisance openings caused by normal equipment cycling
• 600V rating suitable for industrial and commercial electrical systems
• 200 kAIC interrupt rating for dependable fault protection
• Time-delay (super lag) performance ideal for motors and transformers
• Non-current limiting design for general-purpose overcurrent protection
• Commonly used in control panels, HVAC systems, and OEM equipment
• Helps maintain steady operation in systems with regular load variation

Technical Specifications

• Manufacturer: Eaton
• Series: Edison ECSR
• Catalog Number: ECSR20
• Product Type: Fuse
• Fuse Class: RK5
• Amperage Rating: 20 A
• Voltage Rating: 600 V
• Interrupt Rating: 200 kAIC
• Response Time: 10 seconds at 500% overload
• Special Features: Super lag, time-delay, non-current limiting
• Number of Elements: Dual-element
• Fuse Indicator: Non-indicating
• Packaging Type: Standard
• Dimensions: 9.63 in L × 1.61 in W × 1.61 in H
• Weight: 1.5 lb
• Compliance: CE Marked

Material Compliance and Certifications

The ECSR20 is CE Marked and manufactured under Eaton’s trusted quality standards. It’s designed for use in properly rated electrical systems and should always be installed according to applicable electrical codes and best practices.

Where It Works Best

• Industrial control circuits
• HVAC systems and components
• Motor control centers (MCCs)
• OEM machinery and equipment
• Electrical distribution panels
• Instrumentation and control systems
• Transformer secondary control circuits
• General commercial electrical systems

If you’re looking for a fuse that can handle everyday electrical demands without overreacting—while still providing dependable protection when it counts—the ECSR20 is a smart, practical choice.