Volume 4B: Circuit Protection Bussmann series solutionsDon t miss a sale or an opportunity to upgrade your fuse protection Three tiers offer distinct levels of circuit protection 3. Basic - Basic single-element protection for service, feeder and branch circuit applications with up to 100 kA interrupting ratings. 1. Ultimate - Unique element designs deliver a powerful The arrows below show you the way combination of operating characteristics in one fuse fast short- circuit protection, current limitation, and time-delay with up to 300 CUBEFuse protection kA interrupting ratings. For finger-safe protection in a small footprint up to 600 V and 100 2. Advanced - Choose between fast-acting, short-circuit, current A, upgrade to the time-delay or fast-acting CUBEFuse. Amp rating limiting protection or time-delay energy efficient, current limiting rejection feature helps prevent overfusing in the CUBEFuse holder protection based on the application with 200 kA interrupting (page 1-11) or CCP-CF UL 98 disconnect switch (page 11-4). ratings. Ultimate Advanced Advanced Basic FRN-R-(amp) NON-(amp) Class RK5 - 250 V Class H(K) - 250 V See page 1-23 See page 1-15 LPN-RK-(amp)SP KTN-R-(amp) Class RK1 - 250 V Class RK1 - 250 V See page 1-18 See page 1-21 FRS-R-(amp) Class RK5 - 600 V See page 1-23 NOS-(amp) LPS-RK-(amp)SP Class H(K) - 600 V Class RK1 - 600 V See page 1-15 See page 1-18 KTS-R-(amp) Class RK1 - 600 V FCF(amp) See page 1-21 Class CF fast-acting Finger-safe CUBEFuse up to 100 A with amp rating rejecting holders to help prevent overfusing See page 1-9 JKS-(amp) LPJ-(amp)SP Class J time-delay Class J fast-acting See page 1-14 See page 1-13 TCF(amp) Class CF time-delay Finger-safe CUBEFuse up to 100 A with amp rating FNQ-R-(amp)* KTK-R-(amp) rejecting holders to help LP-CC-(amp) Class CC time-delay Class CC time-delay Class CC fast-acting prevent overfusing See page 1-6 See page 1-7 See page 1-8 See page 1-5 KRP-C-(amp)SP KTU-(amp) KLU-(amp) Class L time-delay Class L fast-acting Class L time-delay See page 1-16 See page 1-17 See page 1-18 * FNQ-R fuses are suggested on primary of control transformers - do NOT upgrade to LP-CC.