What is the meaning of the fuse code- Interpretation by the Wei Kewei CAE team

How to understand fuses with various codes?, Weikewei, FAE team provides you with an analysis of international quality, domestic prices, and a one-stop alternative selection guide


nameInternational Standard Codeinterpretation
FuseDual ElementA specially designed fuse that connects two independent components in series within a fuse tube. One of the components, the spring driven trigger assembly, operates under overload conditions, with a maximum current of 5-6 times the rated current of the fuse. Another element, the short-circuit section
FuseEdison Base PlugA 125 volt AC branch rated fuse designed for screwing into a socket. Edison's base styles include brass wire and ceramic body
FuseElectronic fuseAn overcurrent protection device with a fuse that melts and permanently disconnects the circuit under overcurrent conditions. Electronic fuses are typically used in circuit board applications with circuit voltages below 300 volts. It includes
FuseFast ActingA fuse that quickly disconnects during overload and short circuit. This type of fuse cannot withstand temporary overload currents associated with certain electrical loads. UL certified or approved fast acting fuses typically disconnect within 5 seconds
FuseFork LiftA DC rated fuse designed for battery powered lift trucks and other low-voltage battery powered equipment.
FuseFuse~An overcurrent protection device with a fuse that melts and permanently disconnects the circuit under overcurrent conditions. Design as intentional weak links in the circuit.
FuseFuse ClassThe industry has established basic physical specifications and electrical performance requirements for fuses with a rated voltage of 600V or below. These are called standards. If a type of fuse meets the requirements of the standard, it may belong to that category
FuseHigh Reliabilty (Hi Rel)A special type of electronic fuse designed for use in aircraft, space, and military applications, reliability is crucial. High Rel fuses require a series of durability and environmental tests during the production process.
FuseHigh SpeedAlso known as semiconductor fuse or rectifier fuse. An external fast fuse used to protect solid-state devices. It has no intentional delay within the overload range and is designed to open as quickly as possible within the short-circuit range.
FuseHigh Speed JA fast acting, current limiting J-class fuse that provides low I ² t values for semiconductor fuses.
FuseIn LineGlass body, 300 volt AC rated voltage fuse, used to protect fluorescent lighting equipment.
FuseIndicatingA fuse with visual or triggering function that can easily identify the blown fuse.
FuseLimiterA specialized fuse used only to provide short circuit protection.
FuseLimiter FuseOnly provide dedicated fuses for short-circuit protection. Also known as backup fuses.
FuseLow Voltage FuseFuses with a rated voltage of 600V or below. Many types of low-voltage fuses are classified and identified for use in 125, 250, 300, 480, or 600V circuits. Follow UC/CSA/NOM standards.
FuseMedium Voltage FuseCurrent limiting power fuses with rated voltage ranging from 0.6kV to 34.38kV. The rated range of continuous current is 0.5 to 1200 amperes. Rated medium voltage fuse is a universal fuse mainly used to protect transformers and provide two types of currents
FuseMicroA sub natural electronic fuse with radial leads provided in cylindrical or rectangular shapes.
FuseMidget fuseA fuse with a rated voltage between 250 and 600 volts and dimensions of 13/32 inches x 1-1/2 inches. Also known as 5AG fuse.
FuseMiniature FuseA box type electronic fuse, typically measuring 3AG/3AG or 5 x 20mm in size.
FuseMulti-MeterA 1000V AC/DC small fuse designed to protect analog and digital multimeters.
FuseOne Time FuseA general term used to describe H-class non renewable box fuses with a single component.
FusePico FuseA sub natural electronic fuse with axial lead wires.
FusePlugA 125 volt AC branch rated fuse that can interrupt at least 10000 amperes of current. Plug in fuses are designed to be screwed into sockets.
FusePower FuseFuses with rated voltage between 250 and 600 volts and external dimensions greater than 13/32 "x 1-1/2".
FuseQuick ActingFast acting fuses according to IEC 60127 standard.
FuseRectifierAlso known as high-speed fuses or semiconductor fuses. An external fast fuse used to protect solid-state devices. It has no intentional delay within the overload range and is designed to open as quickly as possible within the short-circuit range.
FuseRejection Base PlugA 125 volt AC branch rated fuse designed for screwing into a socket. The rejection base style has a ceramic base and a rejection thread.
FuseRejection FuseCurrent limiting fuses with high and medium breaking ratings and unique dimensions or installation regulations.
FuseRenewable FuseA type of fuse with a rated voltage of 600V or below, which can be replaced with components and reused after the fuse is disconnected. The replaceable fuse is manufactured according to H-level standards.
FuseSafe-T-PlusLittelfuse is a sealed, encapsulated fuse designed for use in potentially explosive environments.
FuseSemiconductor FuseFuse, also known as high-speed fuse. An external fast fuse used to protect solid-state devices. It has no intentional delay within the overload range and is designed to open as quickly as possible within the short-circuit range.
FuseSFEA fast acting low-voltage glass projectile fuse. The diameter of SFE fuses is 1/4 ". The length varies with the rated current, ranging from 5/8" to 1-7/16 ".
FuseSmall Dimension FuseFuses typically designed for circuit board applications with a rated voltage of 300V or below.
FuseSolar JA 600 volt AC and 1000 volt DC fuse designed specifically for protecting photovoltaic systems. The solar J fuse provides a blade type J-class housing size.
FuseSolar FuseA fuse designed specifically to protect photovoltaic systems.
FuseSolar MidgetA 1000 volt DC fuse designed specifically to protect photovoltaic systems. The solar small fuse is available in a housing size of 10 x 38mm.
FuseSolar RA 600 volt AC and 600 volt DC fuse designed specifically for protecting photovoltaic systems. The solar energy R fuse is provided according to the size of the R-class housing.
FuseSubminiature FuseFuses with a size smaller than small fuses (3AG/3AB or 5 x 20mm). Sub natural fuses include 3.6x10mm, 2.3x8mm, Micro, Pico, and surface mount fuses.
FuseSupplemental FusesWithin the same rated range, the rated value and breaking voltage of the fuse are the same. The size of the auxiliary fuse is 13/32 "x1-1/2", 1/4 "x 1-1/4", and 5 x 20mm. The interruption rated value ranges from 35 to 100000 amperes.
FuseSurface Mount FuseA fuse that is constructed in a way that allows it to be directly soldered onto the surface of a printed circuit board. This eliminates the need for through-hole devices to drill holes on circuit boards for soldering leads. It also utilizes
FuseTelepowerA DC rated power fuse designed for the telecommunications industry.
FuseTelpowerBussmann is a telecommunications industry specific fuse with a wide range of brand names.
FuseThin FilmA surface mount fuse structure in which a conductive metal layer under a microscope is deposited on a ceramic or glass substrate between the fuse terminals. This metal layer is the melting element of the fuse. This construction method allows
FuseThrough Hole Mount FuseA fuse composed of leads soldered onto the back of a printed circuit board. The installation of through-hole fuses requires drilling holes on the printed circuit board, inserting the leads into the holes, and then soldering the leads to the back
FuseTime DelayA built-in delay that allows temporarily harmless inrush current to pass through a fuse or circuit breaker when not in operation, but is designed to disconnect in the event of sustained overload and short circuit.
FuseTime LagDelay fuses according to IEC 60127 standard.
FuseTorpedoThe torpedo fuse is composed of a heat-resistant material, and its fuse element extends to the external body of the fuse. This type of fuse is used on old-fashioned cars manufactured in Europe.
FuseVery Fast-ActingThe ultra fast fuse is designed for quick response to overload and short circuit. They are very limited in flow. The main purpose is to protect solid-state electronic components. Their special characteristics include fast overload response, v
FuseWER TypeA 32 volt DC fuse designed for the telecommunications industry.
FuseE-Rated FuseProvide current limiting medium voltage power supply fuses for overload and short circuit protection. They are designed to withstand large excitation inrush currents that occur during transformer start-up. The rated voltage range is 2.75kV to 38kV, continuous c
FuseR-Rated FuseThe rated current fuse is a limited current backup fuse designed to provide short-circuit protection only for medium voltage starters and motors. They are not designed to prevent long-term current overload. Fuses with rated power must be used in SER
FusePT FuseVoltage transformer (PT) fuse is a specialized fuse designed to protect voltage transformers. Voltage transformers require a current limiting fuse on the primary connection side. The rated voltage range is from 2.4kV to 36 kV. Because of electricity demand
FuseCapacitor FuseThe capacitor fuse has a current limiting function with high and medium breaking ratings, and provides short circuit and overload protection. The function of a capacitor fuse is to isolate the short-circuit capacitor before it damages surrounding equipment or personnel. this
FuseDistribution Transformer FuseDistribution transformer fuse is a backup current limiting fuse designed to protect distribution transformers. A backup current limiting fuse is a type of fuse that can interrupt any current between the rated minimum interrupt current and maximum current
FuseIEC Standard Back-Up FuseIEC standard fuses are medium voltage backup fuses manufactured according to IEC standards. The rated minimum breaking capacity of the backup fuse (below I3). Their operating range is between their minimum interrupt rating (I3) and maximum value
FuseGeneral Purpose FuseA current limiting medium voltage fuse that can interrupt all currents from the maximum rated interruption current to causing the melting of the fuse element within one hour. Not all currents are within this range. be on the cards
FuseFull Range FuseA current limiting medium voltage fuse that can interrupt all currents from the maximum rated interrupt current to the minimum continuous current. When the fuse is applied at the maximum ambient temperature, it will cause the fuse element to melt
FuseBack Up FuseA dedicated current limiting fuse that only provides short-circuit protection. They are used together with high-voltage motor starters to provide short-circuit protection for individual motors. An example is the design of R-rated fuses
FuseClass RThese are high-performance fuses rated at 1/10-600A at 250V and 600V. They are labeled with the word 'current limiting' and have an interruption rating of at least 200kA. Their external dimensions are the same as H-class fuses, but they have a resistor
FusePTC DeviceA resettable overcurrent protection device made of a polymer that can quickly respond to temperature rise. Under normal circumstances, the resistance of PTC devices is very small, and their impact on the circuit is minimal. PTC device changes or
FusePTC Resettable FuseAnother name for PTC equipment. PPTC represents the positive temperature coefficient of polymers.
FusePPTC DeviceAnother name for PTC equipment. PTC stands for positive temperature coefficient.
FuseBattery Strap PTCAn axial lead PTC device that provides non cycling protection for rechargeable batteries, preventing overcharging and short circuit events
FuseManual Battery DisconnectA battery disconnect switch that can be operated manually using a handle, lever, knob, or key.
FuseRemote Battery DisconnectA battery disconnect switch operated by an electric or electronic remote control. In the event of a short circuit, the electronic or electrical control unit detects a voltage drop and opens the contacts, disconnecting the battery
FuseMaster Battery DisconnectA battery disconnect switch that quickly cuts off the battery on the circuit by disconnecting the positive pole or grounding wire.
FuseAlternator Field Disconnect AFDA safety function of some isolation switches is to disconnect the magnetic field of the AC generator when the dangerous voltage rises, thereby turning off the magnetic field and preventing voltage spikes.
FuseIngress Protection IPEntrance protection (IP) refers to the function of isolating switches to protect equipment from various environmental pollutants. It is the protection level of electrical enclosures against solids and liquids. Abbreviation for dust inlet protection.
FuseIndexing PinThe pin that aligns the switch with the installation panel is used to prevent rotation of switches with through-hole installation. Also known as positioning sales or anti rotation sales.
FuseLocating PinThe pin that aligns the switch with the installation panel is used to prevent rotation of switches with through-hole installation. Also known as dividing pin or anti rotation pin.
FuseAnti-Rotation PinThe pin that aligns the switch with the installation panel is used to prevent rotation of switches with through-hole installation. Also known as indexing pin or positioning pin.
FuseLOTO Lock-Out Tag-OutA safety device/program that ensures that dangerous machines are properly shut down and cannot be restarted before completing maintenance or repair work.
FuseThermal Circuit BreakerThermal circuit breaker is a resettable circuit protection device mainly used to protect components and equipment from the effects of current overload and short circuit. Thermal circuit breaker provides thermal overload protection in DC applications
FuseMini Blade StyleA small blade type thermal circuit breaker is a type of blade type automotive circuit breaker, similar in style to a miniature car fuse.
FuseATC Blade StyleAn ATC blade type thermal circuit breaker is a blade type automotive circuit breaker, similar in style to an ATC automotive fuse.