ECSR3 - 3Amp Fuse

ECSR3 - 3Amp Fuse

The Eaton Edison ECSR3 fuse delivers dependable overcurrent protection in demanding commercial and industrial environments. Designed to safeguard motors, transformers, and inductive loads, this fuse handles both routine inrush currents and dangerous short‑circuit events with precision and reliability. Its dual‑element, time‑delay design ensures that transient surges won’t trigger an unnecessary shutdown—while serious overloads or faults are cleared quickly to prevent damage. When you install the ECSR3, you get a high-performance fuse that protects your equipment, reduces the risk of downtime, and offers long-term peace of mind for your electrical systems.

Key Features and Benefits

• Dual-Element, Time-Delay Operation: Tolerates temporary current spikes (like motor start-up surges) without blowing, yet responds swiftly to sustained overcurrents. This means fewer nuisance interruptions and more uptime.
• Versatile Protection: Offers dependable safety for feeder circuits, branch circuits, AC drives, load centers, panel boards, and switchboards—covering a wide range of industrial and commercial installations.
• High Interrupting Capacity: With a 200 kAIC rating, this fuse can interrupt large fault currents, making it reliable for harsh electrical environments where surge currents and short-circuit risks are common.
• Cost-Efficient Design: The time-delay feature lets you size the fuse close to full-load amps, which may reduce system component costs without sacrificing protection.
• Strong Overload and Short-Circuit Protection: The dual-element construction guards against both low-level overloads and severe short circuits, helping to prevent equipment damage or fire hazards.

Technical Specifications

• Amperage Rating: 3 A
• Voltage Rating: 600 V AC
• Interrupting Rating: 200 kAIC
• Response Time: Minimum 10s delay at 500% of rated current
• Fuse Class: RK5 (dual-element, time-delay)
• Indicator: Non-indicating
• Dimensions:
  • Length: 5.00 in (127 mm)
  • Diameter: 0.81 in (20.6 mm)
• Terminal Type: Ferrule ends

Material Compliance and Certifications

• UL Listed: UL 248‑12
• CSA Certified: C22.2 No. 248.12
• CE Marked
• RoHS Compliant: Free from hazardous substances, meeting modern environmental and safety standards

Where It Works Best

• The ECSR3 is especially effective in circuits powering motors, transformers, pumps, and other inductive loads—situations where inrush currents at startup are expected. It excels in industrial plants, manufacturing facilities, commercial buildings, and mechanical rooms where dependable protection and minimal downtime are critical. If you’re running AC drives, feeders, or load centers that demand both endurance and safety, the ECSR3 is a solid choice for long-term circuit protection.