The Littelfuse very fast acting 3AB fuse solves a broad range of application requirements while offering reliable performance and cost-effective circuit protection. The Littefuse 3AB Series 322 / 332 fuses are available in a wide current rating range (1A to 30A ) with an operating range from -55°C to 125°C. The 322 / 332 are very fast-acting for protection of silicon controlled rectifiers and similar solid-state devices. Available in cartridge format only. The Littelfuse 3AB series is UL 248-14 compliant.