Brand: Bussmann Item: Fuse Series: S500 Size: 5x20mm or 0.2x0.79in Quantity per Pack: 5 Manufacturer Part Number: S500-4-R Application: Supplemental, electronic protection applications Voltage Rating: 250 VAC Amperage Rating: 4A Fuse Class: Small dimension Curve Characteristics: Fast-acting Body Type: Glass tube Bussmann fuse, S500 series, small dimension, fast-acting, 4A, 250 VAC, glass tube. Package of 5. Supplemental, electronic protection applications. Manufacturer part number: S500-4-R.