MDA-V-20-R

Operating Temperature:	--
Color:	--
Size / Dimension:	0.266" Dia x 1.292" L (6.76mm x 32.82mm)
DC Cold Resistance:	0.004 Ohms
Series:	MDA
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Ceramic
Current Rating:	20A
Voltage Rating - AC:	250V
Voltage Rating - DC:	125V
Response Time:	Slow
Package / Case:	3AB, 3AG, 1/4" x 1-1/4" (Axial)
Mounting Type:	Through Hole
Breaking Capacity @ Rated Voltage:	1.5kA AC, 10kA DC
Melting I²t:	483.45
Approvals:	CE, CSA, UL

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Fuses are protective devices designed to disconnect electrical circuits when an overcurrent or short circuit occurs, thus preventing equipment damage and potential fire hazards due to overheating. The MDA-V-20-R is an upgraded version of the MDA fuse specifically designed for high-voltage applications. This type of fuse is equipped with an integrated fuse switch and provides superior current limiting protection. The MDA-V-20-R is designed to be used in alternating current (AC) systems with an operating voltage of up to 1000 volts. It is also suitable for use with a variety of single and three phase systems, including induction motors, transformers, panel boards, bus ducts, and power grids. The MDA-V-20-R is made up of a fuse element and housing. The fuse element is constructed from a special zinc alloy and consists of a metal cylinder surrounded by a thin wall of zinc. When an overcurrent or short circuit occurs, the fuse element heats up and, after a period of time, the zinc alloy melts, causing the current to be disconnected. The MDA-V-20-R is fitted with an integrated fuse switch, which allows it to automatically reset after the overcurrent has been disconnected. This makes the MDA-V-20-R ideal for applications in which frequent or prolonged current faults may occur, such as in heavily loaded systems or in applications susceptible to lightning strikes. The integrated fuse switch also allows the MDA-V-20-R to be used in selective coordination applications, as it can be operated in a synchronous manner with other protective devices of the same type. The MDA-V-20-R is designed to be used in conjunction with other protective devices, such as overcurrent relays, fuses, and circuit breakers. When used in combination with other protective devices, the MDA-V-20-R can provide a high degree of current protection and system reliability. The integrated fuse switch also allows the MDA-V-20-R to be used in selective coordination applications, as it can be operated in a synchronous manner with other protective devices of the same type.In summary, the MDA-V-20-R fuse is an ideal choice for high-voltage AC applications. It is made up of a fuse element and housing and is fitted with an integrated fuse switch, which allows it to automatically reset after a fault has been disconnected. The MDA-V-20-R is also designed to be used in combination with other protective devices, such as overcurrent relays, fuses, and circuit breakers, to provide a high degree of current protection and system reliability.

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