04291.75WRM Circuit Protection

Voltage Rating - DC:	63V
Size / Dimension:	0.125" L x 0.060" W x 0.045" H (3.18mm x 1.52mm x 1.14mm)
Color:	--
Operating Temperature:	-55°C ~ 90°C
Approvals:	--
Breaking Capacity @ Rated Voltage:	--
Mounting Type:	Surface Mount
Package / Case:	1206 (3216 Metric)
Response Time:	Fast
Series:	429
Voltage Rating - AC:	63V
Current Rating:	1.75A
Fuse Type:	Board Mount (Cartridge Style Excluded)
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction: 04291.75 WRM is a fuse application form, which serves to protect electrical circuits from overload and/or short circuit protection. The application field for 04291.75 WRM is mainly low voltage, motor circuits. The 04291.75WRM fuse is a fast-acting (very quick response to an overload or short circuit) like the 05292.89WRM, but with twice the rating, making it a preferred choice for certain applications due to its higher current rating.Design of 04291.75WRM FuseThe design of the 04291.75WRM fuse is composed of an insulated fuse box, holding a single fuse element. The box is sealed to ensure no contact with the hot or live part of the wiring. The fuse element itself is composed of a thin low melting metal wire or strip located in a glass or ceramic tube.Working Principle of 04291.75WRM Fuse When an overload or short circuit occurs, a large surge current passes through the fuse wire element, increasing its temperature rapidly. When the fuse element reaches its rated temperature it melts, effectively stopping the current and thus preventing any further damage to the electrical appliance or circuit. At this point the fuse element deforms into a characteristic shape, meaning it is no longer operational and must be replaced. Inspection and Replacement The 04291.75WRM fuse must be checked regularly in order to ensure it is in proper working order. The most common method of inspection is by visual inspection, requiring the removal of the fuse cover. If the fuse element is intact and is not deformed then it is probably in working order and may not need to be replaced. However if the fuse element has melted completely or partially the fuse must be replaced immediately. Conclusion The 04291.75WRM is a fuse application form, which is most suitable for low voltage motor circuits due to its high current rating. It is fast-acting and highly effective in preventing any further damage to the electrical appliance or circuit by quickly cutting off the main power supply when an overload or short circuit occurs. Regular and careful inspection of the fuse element is required in order to ensure proper working order, and the fuse must be replaced immediately if any signs of damage are evident.

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