| Allicdata Part #: | F321-ND |
| Manufacturer Part#: |
03131.25H |
| Price: | $ 0.00 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | FUSE GLASS 1.25A 250VAC 3AB 3AG |
| More Detail: | N/A |
| DataSheet: |  03131.25H Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| Lead Free Status / RoHS Status: | Contains lead / RoHS non-compliant |
| 1 +: | 0.00000 |
Specifications
| Package / Case: | 3AB, 3AG, 1/4" x 1-1/4" |
| DC Cold Resistance: | 0.258 Ohms |
| Size / Dimension: | 0.250" Dia x 1.250" L (6.35mm x 31.75mm) |
| Color: | -- |
| Operating Temperature: | -- |
| Approvals: | CSA, METI, UL |
| Melting I²t: | 24 |
| Breaking Capacity @ Rated Voltage: | 100A |
| Mounting Type: | Holder |
| Series: | 313 |
| Response Time: | Slow |
| Voltage Rating - AC: | 250V |
| Current Rating: | 1.25A |
| Fuse Type: | Cartridge, Glass |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Obsolete |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Bulk |
Description
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Fuses are an important and necessary safety device used in many electrical systems. The 03131.25H fuse is one such device, and its application field and working principle are discussed below.The 03131.25H is a medium voltage (MV) fuse for medium voltage distribution systems, with a rated working voltage of 2.4-24kV. It is designed and manufactured for use in fixed terminal substations, as well as other power distribution and switching equipment. The fuse can be used in both indoor and outdoor applications, and has a mechanical on-off capability.The fuse is made up of a tin-plated steel case, a copper conductor, a fuse element, and two end caps. The fuse element is made of tin-based alloy registered to a specific resistance, and it works on the principle of melting the element when current passes through it. When the current exceeds the preset threshold of the element, the element melts and interrupts the current flow, thus protecting the equipment from the effects of an overload or short circuit.The 03131.25H fuse has an insulating gap between the hot and ground wires. This serves to eliminate the risk of leakage current between the two and to reduce the possibility of electric shocks. The gap also provides a high-sliding distance and reliable electric connection, making it an ideal choice for protection against frequent on-off operations. The fuse also has a built-in indication flag, which can be used to identify if the fuse has blown or not.The 03131.25H fuse is a high-performance product, designed for extended fault-current breaking times and improved electrical insulation. It is also highly reliable and easy to maintain. The fuse element is designed for a maximum of 7,500 operations before replacement, and has a very tight tolerance, thus ensuring a reliable performance and protection under various operating conditions.In summary, the 03131.25H fuse is a versatile, high quality fuse, designed for medium voltage power distribution systems. It provides reliable protection under various operating conditions, and is an ideal choice for the protection of electrical equipment against faults and surges.
The specific data is subject to PDF, and the above content is for reference
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