The Monarch FUSEKING DES 15 Dual-Element Time-Delay Fuse is a high-quality electrical fuse designed by Monarch Specialties. It features a copper finish and is suitable for interior use. This dual-element time-delay fuse offers universal smart home compatibility, making it versatile for various electrical equipment and supplies in a business or industrial setting. With its reliable performance and durable construction, the Monarch FUSEKING DES 15 is a dependable choice for protecting electrical circuits.