ECSR4 - 4Amp Fuse

ECSR4 - 4Amp Fuse

The Eaton Edison ECSR4 4‑Amp time‑delay fuse delivers dependable protection for industrial and commercial electrical systems, combining safety, convenience, and durability in one compact unit. Engineered to handle both overloads and short‑circuit events, this 600‑volt fuse from the Class RK5 family is built to perform where reliability matters most. With a high interrupting rating and a time-delay element that tolerates startup surges, the ECSR4 ensures smooth operation for motors, transformers, and other inductive or high-inrush loads — all without unnecessary nuisance trips. Its classic cylindrical shape with ferrule ends slips easily into standard fuse holders, making installation fast and straightforward. Whether you’re maintaining existing infrastructure or outfitting new systems, this fuse offers peace of mind and consistent circuit protection when the stakes are high.

Key Features and Benefits

• Time‑Delay Protection: Designed to tolerate temporary surge currents common in motor and transformer start-up, reducing the risk of nuisance fuse blowouts and avoiding frequent replacements.
• High Fault‑Clearing Capacity: A 200 kAIC interrupting rating provides strong protection against short circuits and electrical faults, ensuring safety and system integrity, even under extreme conditions.
• Broad Utility: Ideal for a wide variety of industrial and commercial setups, from HVAC systems and lighting panels to heavy machinery and control circuits.
• Easy Installation: Compact form factor (5" long, 0.81" diameter) and ferrule-ended design fit standard holders — allowing you to upgrade or replace without rewiring or special adapters.
• Reliable Simplicity: Non‑indicating design keeps things straightforward for systems where visual status signals aren’t necessary, reducing clutter and easing maintenance.

Technical Specifications

• Catalog Number: ECSR4
• Voltage Rating: 600 VAC
• Current Rating: 4 Amps
• Interrupting Rating: 200 kAIC
• Response Time: Approx. 10 seconds at 500% overload
• Dimensions:
  • Length: 5.00 inches
  • Diameter: 0.81 inches
• Weight: ~0.4 lbs

Material Compliance and Certifications

• Industry Standards: Meets the requirements of UL 248‑12 and CSA C22.2 No. 248.12 fuse standards.
• Certifications: UL Listed, CSA Certified, and carries the CE Mark, indicating compliance with North American and international regulatory safety standards.
• Environmental Compliance: Fully RoHS compliant, making it a safe choice for environmentally conscious installations.

Where It Works Best

• The ECSR4 shines in environments where you need dependable overcurrent protection without fuss — think industrial machinery rooms, HVAC systems, elevator motors, lighting, or load centers in commercial buildings, and motor-driven equipment. If your circuits experience frequent inrush currents (like motors or transformers), or if you need a fuse that handles short-circuits cleanly while requiring minimal maintenance, this time-delay 4 Amp fuse is an excellent, all-around choice.