Bussmann SL-EK SL Fuse Assortment Contains 3 Ea. SL-15, 2 Ea. SL-20 And 1 Ea. SL-30 And 1 Fuse Tester, 6-Pack plus Tester Product Description The EATON's Cooper Bussmann brand is the industry standard for circuit protection on more than 50,000 SKUs of electrical and electronic fuses, fuse holders, power distribution blocks as well as engineering, training and testing services. EATON's Cooper Bussmann is the leading source of circuit protection solutions in the global marketplace. Its solutions are listed for use around the world including meeting agency requirements with UL?CE?CSA?IEC?BS?VDE?SEMKO, and JIS. Worldwide, EATON's Bussmann (Cooper Bussmann) employs more than 5,000 electrical, mechanical, and applications engineers, along with manufacturing, and support personnel-all of whom are poised to service your local needs. Bussmann is headquartered in Shanghai, China, has marketing, sales, technical support, production departments and other operations. We offer fast and timely service to China along with the whole Asia customers. From the Manufacturer SL fuses for residential motor circuits in kitchens, workshops, garages, utility rooms or any circuit with motors, relays or solenoids. The rejection base threads prevent a larger amp fuse from being used. Example: A 30 amp fuse cannot be installed in a 20 amp receptacle because of the different sized threads. Medium-duty fuse. These fuses thread into fuse receptacles. Threaded fuse type: Rejection Base (porcelain threads). Not interchangeable with Edison Base (brass threads) type. Medium-duty (SL) category plug fuse. The medium-duty fuse (SL) has a time-delay feature for use on motor circuits. Plug fuses are rated for a maximum of 125Vac. SL three pack (PK3) version (blister pack). Plug fuses are often used in residential and industrial branch circuit and motor protection. Fuses are used to protect furnace blower motors, pumps, power tools, garage door openers, etc. Motor protection fuses are usually used in conjunction with branch circuit protection. The fuse is often located in a box cover unit. Plug fuses provide a compact and inexpensive method to prevent damage to electrical motors. They help reduce downtime and lower maintenance costs by opening the circuit when a dangerous overload is present. When used for residential branch circuit protection, fuses are typically located in the main fuse panel. Features SL emergency fuse kit Rejection base plug fuse kit Includes (3 ea.) 15 A, (2) 20 A Includes (1) 30 A, FT-3 fuse tester SL series Size Rejecting Plug Fuses No-interchangeability prevents installing a higher amp fuse than the circuit was designed for Has ability to withstand typical motor starting surges Use in residential or light-duty motor circuits This fuse threads into SA adaptors USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.