Reliance ECSR-3-1/2 3.5A Dual-Element Time-Delay Class RK5 Fuse (Box of 4) The Reliance ECSR-3-1/2 is a 3.5-amp, 600-volt, dual-element, time-delay fuse designed to provide reliable overcurrent protection for a variety of electrical applications. Packaged in a box of four, these fuses are ideal for safeguarding motors, transformers, and other inductive or non-inductive loads. Key Features Dual-Element Construction: Allows for sizing at 125% of full load amperes (FLA), offering enhanced motor backup protection. Time-Delay Capability: Provides a minimum time-delay of 10 seconds at 500% of the fuse rating, accommodating temporary inrush currents without unnecessary fuse operation. High Interrupting Rating: Rated at 200,000 amperes interrupting capacity (AIC) at 600 VAC, ensuring robust protection against high fault currents. Current Limiting: Limits the let-through energy during short-circuit conditions, reducing potential damage to downstream equipment. Compliance and Safety: UL Listed and CSA Certified, meeting industry standards for safety and performance. Specifications Amperage Rating: 3.5 Amps Voltage Rating: 600 VAC Fuse Class: RK5 Response Time: 10 seconds minimum at 500% of rated current Interrupting Rating: 200,000 AIC at 600 VAC Dimensions: 0.81 inches in diameter x 5 inches in length Terminal Type: Ferrule Mounting Type: Clip Applications The ECSR-3-1/2 fuse is suitable for use in AC power distribution systems, including mains, feeders, and branch circuits. It is particularly effective in protecting motors, transformers, and other inductive loads where time-delay characteristics are essential to handle inrush currents without compromising protection. By incorporating these fuses into your electrical system, you can ensure enhanced safety, reduced downtime, and prolonged equipment lifespan.