Product Datasheet BOX STYLE CIRCUIT BREAKERS 8-50A 12V and 24V DC Applications Underhood or chasis-mounted circuit secondary protection Secondary application motors (winches, auxilary 30062-10 batteries, etc.) Features/Benefits Automatic, cycling, and manual reset versions available Weather-resistant sealing, as noted In-Line or bracket mountings (mounting nut included, where applicable) 30055-50 Recommended/Related Products Mounting Brackets: 30090-x Description Circuit Breakers are a cost-effect method to ensure repeatable, reliable circuit protection. Meant to assist with systems that may be exposed frequently to overcurrents, or where replacing fuses may not be feasible, these products Busbars: 86099-x, 86126-x are critical components for protecting wiring, electrical equipment, and vehicle subsystems. Available in multiple current ratings, waterproof configurations, and mounting styles, our Box Style Circuit Breakers are a flexible solution for many environments. Web Resources Download installation instructions, 2D prints and technical Ordering Information resources at: littelfuse.com/boxstylecb PART NUMBERS CURRENT VOLTAGE RESET HOUSING MOUNTING TERMINALS RATING RATING TYPE MATERIAL METHOD BULK BOXED RETAIL Bolt-Down 30055-8 8 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-10 30055-10-BX 10 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-15 30055-15-BX 30055-15-BP 15 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-20 30055-20-BX 30055-20-BP 20 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-25 30055-25-BX 25 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-30 30055-30-BX 30055-30-BP 30 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-40 30055-40-BX 30055-40-BP 40 12 Type I Plated Steel Two 10-32 Studs (Bracket) Bolt-Down 30055-50 30055-50-BX 30055-50-BP 50 12 Type I Plated Steel Two 10-32 Studs (Bracket) 30056-10 30056-10-BX 10 12 Type I Plated Steel Terminal Two 10-32 Studs 30056-15 30056-15-BX 15 12 Type I Plated Steel Terminal Two 10-32 Studs 30056-20 30056-20-BX 20 12 Type I Plated Steel Terminal Two 10-32 Studs 30056-25 30056-25-BX 25 12 Type I Plated Steel Terminal Two 10-32 Studs 1 of 3 littelfuse.com 2020 Littelfuse Commercial Vehicle Products Rev: 042920-BProduct Datasheet BOX STYLE CIRCUIT BREAKERS PART NUMBERS CURRENT VOLTAGE RESET HOUSING MOUNTING TERMINALS RATING RATING TYPE MATERIAL METHOD BULK BOXED RETAIL 30056-30 30056-30-BX 30 12 Type I Plated Steel Terminal Two 10-32 Studs 30056-40 30056-40-BX 40 12 Type I Plated Steel Terminal Two 10-32 Studs 30056-50 30056-50-BX 50 12 Type I Plated Steel Terminal Two 10-32 Studs Hencol-Dipped 30062-10 10 12 Type I Terminal 17AWG Wire Lead Plated Steel Hencol-Dipped 30062-20 30062-20-BX 20 12 Type I Terminal 15AWG Wire Lead Plated Steel Hencol-Dipped 30062-30 30062-30-BX 30 12 Type I Terminal 13AWG Wire Lead Plated Steel Hencol-Dipped 30062-40 40 12 Type I Terminal 13AWG Wire Lead Plated Steel Hencol-Dipped 30063-10 10 12 Type I Terminal 17AWG Wire Lead Plated Steel Hencol-Dipped 30063-20 30063-20-BX 20 12 Type I Terminal 15AWG Wire Lead Plated Steel Hencol-Dipped 30063-30 30 12 Type I Terminal 13AWG Wire Lead Plated Steel Bolt-Down 30128-10 30128-10-BX 10 12 Type I Plated Steel Two 10-32 Studs Cross-Bracket) Bolt-Down 30128-15 30128-15-BX 15 12 Type I Plated Steel Two 10-32 Studs (Cross-Bracket) Bolt-Down 30128-20 30128-20-BX 0813020.XP 20 12 Type I Plated Steel Two 10-32 Studs (Cross-Bracket) Bolt-Down 30128-25 30128-25-BX 25 12 Type I Plated Steel Two 10-32 Studs (Cross-Bracket) Bolt-Down 30128-30 30128-30-BX 0813030.XP 30 12 Type I Plated Steel Two 10-32 Studs (Cross-Bracket) Bolt-Down 30128-40 30128-40-BX 0813040.XP 40 12 Type I Plated Steel Two 10-32 Studs (Cross-Bracket) Bolt-Down 30128-50 0813050.XP 50 12 Type I Plated Steel Two 10-32 Studs Cross-Bracket) Hencol-Sealed 30137-10 10 12 Type I Terminal Two 10-32 Studs Plated Steel Hencol-Sealed 30137-15 30137-15-BX 15 12 Type I Terminal Two 10-32 Studs Plated Steel Hencol-Sealed 30137-20 30137-20-BX 20 12 Type I Terminal Two 10-32 Studs Plated Steel Hencol-Sealed 30137-30 30 12 Type I Terminal Two 10-32 Studs Plated Steel Hencol-Sealed Bolt-Down 30138-10 10 12 Type I Two 10-32 Studs Plated Steel (Bracket) Hencol-Sealed Bolt-Down 30138-15 15 12 Type I Two 10-32 Studs Plated Steel (Bracket) Hencol-Sealed Bolt-Down 30138-30 30138-30-BX 30 12 Type I Two 10-32 Studs Plated Steel (Bracket) Hencol-Sealed Bolt-Down 30138-40 40 12 Type I Two 10-32 Studs Plated Steel (Bracket) 30158-30 30 12 Type I Plated Steel Bolt-Down Two 10-32 Studs 30171-10 30171-10-BX 10 24 Type I Plated Steel Terminal Two 10-32 Studs 2 of 3 littelfuse.com 2020 Littelfuse Commercial Vehicle Products Rev: 042920-B