EV series products have unique cutting-edge technology in product innovation design (having a number of national patents in melt arrangement structure and contact spot welding technology), material selection (99.95% pure silver melt, H-class high temperature resistance, arc-resistant tubing), and process control (pre-delivery performance test for fully automatic melt punching equipment and high-precision instruments). Currently, international standard preferred DC voltage classes such as 125Vdc, 220vdc, 500vdc, 660vdc/750vdc, and 1000vdc are available. The products also comply with: IEC60269-1, IEC60269-2, IEC60269-4, UL248, JASO D622, and ISO8820.

Made of new 95 ceramic material to ensure that the short-circuit energy within the high-voltage fusing element is sealed, safe and reliable. In order to ensure that the fusible core can be fused under fault condition, it is made of pure silver with the purity of 99.95%. Selected quartz sand is chosen as the inner filling material, which effectively absorbs the short-circuit current. The metal parts at both ends of the fuse are made of high-purity brass, and the outer layer is tinned. No matter what kind of base is selected, it can ensure good electrical conductivity, reduce temperature rise and power loss. Melt has up to eight process procedures, whole process detection management, and multiple arc extinction process designs (patented).

ESS series fuse is used exclusively for protecting semiconductor equipment with high breaking capacity (up to 250 kA). It is easy to break 1500 VDC voltage, and is characterized by high breaking capacity, small 12T value, fast fusing speed, significant current limiting, low power consumption, low temperature rise, safety and reliability. It is especially suitable for the over-current short-circuit protection and reserve protection of energy storage battery packs, energy storage flow tanks, the storage side of energy storage PSC systems, grid-side energy storage, the battery system of user-side energy storage systems, as well as rectifier diodes, crystal tubes, and other complete sets of devices and equipment, and it can also be used as the SPD protection in flow tanks and PCS systems. The product can also be used in the industries such as rail transportation, electric power industry, new energy electric vehicles, wind power photovoltaic, communications, and ships, etc. It can be used as the over-current short-circuit protection and reserve protection for power systems, as variable current inverters, and as rectifier two-level tubes, transistors, as well as a set of setups and equipment consisting of semiconductor devices and equipment in electrical local systems. The ESS series has excellent environmental resistance, fuse characteristics and durability. An optional k-type indicator light is also available to match the micro switch to transmit the fuse signal to the central control system. Fuses without indicator lights are also available for more compact requirements and are the first choice for short-circuit protection of energy storage system circuits.

North American standard fast fuse: product features: 99.95% pure silver fuse element, solid quartz sand inside, strong resistance to shock and vibration, high fire resistance. Applicable ambient temperatures: -40℃-95℃; relative humidity: <90%; integrated contactors are tin-plated to ensure reliable electrical performance and greatly reduce temperature rise and power consumption. It is highly flame retardant, has high insulation performance, low arc voltage and low power consumption. 【Product features】 in line with high breaking capacity in IEC 60269-1 and IEC 60269-4 standards: 100kA Joule integral 12t minimal.

European standard square series fuses are widely used in the semiconductor protection of the line that requires more accurate parameters, featuring compact structure and better performance, etc.; 【Product features】 minimum total Joule integral (12t), minimal power consumption, low temperature rise, higher reliability, lower arc voltage, using the 95 ceramic body, better mechanical strength and electrical insulation; 【maximum allowable load current】 The rated current value of CFriend fuse is based on the value at the ambient temperature of 20℃. The following chart provides the correction factor (K) for a certain temperature range (-40°C to + 80°C).

British standard BS88 series: in line with the high-speed fuse-4&IEC 60269-4 standard; breaking capacity: 200kA. British fuse is generally used in inverter, UPS/EPS and other power equipment, originally mainly used within the Commonwealth countries, has now been favored by manufacturers in all regions of the world and applied to other industrial areas. Joule integral 12t, small arc voltage, low power consumption, small size, cost-effective, superior DC performance, strong surge tolerance; 【New product】 To meet market needs, CFriend exclusively developed the EV series special protective fuses combined with the market demand and using the characteristics of BS88 standard product generator. It has undergone a number of improvements in the ceramic tube, contact material selection, melt design and installation structure, featuring lighter and more compact structure, faster and more reliable fusing capacity, smaller contact resistance and stronger anti-vibration performance.

NH series low voltage fuses: product features: high breaking capacity, up to 120kA 500V/690V/250 Vdc/440 v DC; operating frequency: 45-62 HZ; double indication for low power consumption; 【guidance for using the selection table】 tube size: refers to the specification of the maximum cross-section of the fuse body (for specific data, please see the Tube Size Specification Table), which is used to determine the calculation of the fuse arrangement space; protection level: gG-gL is suitable for the protection of a full range of lines, both overload protection and short-circuit protection; aM is suitable for motor circuit protection and is generally only used for localized short-circuit protection; applied voltage: the voltage of the circuit to which the fuse is applied should be less than 500V, such as 380V or 440V, etc. The product with 500V voltage class can be selected. In an environment where the voltage exceeds 500V or fluctuates greatly, it is recommended to use the product with 690V voltage.