| Allicdata Part #: | 0677.400DRT4P-ND |
| Manufacturer Part#: |
0677.400DRT4P |
| Price: | $ 1.11 |
| Product Category: | Circuit Protection |
| Manufacturer: | Littelfuse Inc. |
| Short Description: | FUSE CERAMIC 400MA 250VAC AXIAL |
| More Detail: | N/A |
| DataSheet: |  0677.400DRT4P Datasheet/PDF |
| Quantity: | 1000 |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| 1500 +: | $ 1.00104 |
Specifications
| Series: | 677 |
| Packaging: | Tape & Reel (TR) |
| Lead Free Status / RoHS Status: | -- |
| Part Status: | Active |
| Moisture Sensitivity Level (MSL): | -- |
| Fuse Type: | Cartridge, Ceramic |
| Current Rating: | 400mA |
| Voltage Rating - AC: | 250V |
| Response Time: | Slow |
| Package / Case: | Cartridge, Non-Standard (Axial) |
| Mounting Type: | Through Hole |
| Breaking Capacity @ Rated Voltage: | 35A |
| Melting I²t: | 0.755 |
| Approvals: | CSA, UL, VDE |
| Operating Temperature: | -- |
| Color: | -- |
| Size / Dimension: | 0.154" Dia x 0.433" L (3.90mm x 11.00mm) |
| DC Cold Resistance: | 0.36 Ohms |
Description
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Fuses have been in the electrical industry for many years, and have been widely used in various devices and applications. In this article we will discuss the 0677.400DRT4P application field and working principle.
The 0677.400DRT4P is an UL Recognized Low Voltage Fuse manufactured by Littelfuse. It has a rated current of 250A, a minimum breaking capacity of 33kA, and is designed for the protection of medium voltage switchgear against short-circuit faults. Typical applications for this fuse include industrial and residential solar panel systems, power distribution systems, photovoltaic systems, and other low voltage applications.
A fuse is a type of an overcurrent protection device which protects electrical devices from damage due to excessive current. Fuses are designed to open and interrupt the circuit if a predetermined amount of current is exceeded. They are typically composed of a metal strip that melts when heated, causing the circuit to be broken. The 0677.400DRT4P fuse is no exception, and operates similarly to other fuses.
When current exceeds the fuse’s rating, the thin metal strip will heat up due to the excessive current passing through, and will eventually melt. When the metal strip melts, it will open and break the circuit, thus protecting the electrical devices from damage due to the overcurrent. Depending on the type of fuse, the time needed for the metal strip to melt will vary. The 0677.400DRT4P is a Type-J Low breaking capacity Fuse, and is designed to break the circuit in a short amount of time.
The 0677.400DRT4P fuse can be used in both AC and DC applications. It has a rated operating voltage of up to 600V, and is able to deliver up to 400A of current for short-term applications such as motor start applications or surge current protection. The 0677.400DRT4P can be mounted in either a Class J Fuse link or a Class T Fuse link depending on the application.
The 0677.400DRT4P is a UL Recognized fuse, meaning that it has met the safety requirements set by Underwriters Laboratories. This ensures that the fuse is safe to be used in various applications, and that it will operate to the expected standards.
In conclusion, the 0677.400DRT4P is a type of UL Recognized Low Voltage Fuse manufactured by Littelfuse. It is designed for the protection of medium voltage switchgear against short-circuit faults, and can be used in both AC and DC applications. With a rated operating voltage of up to 600V, and able to deliver up to 400A of current, the 0677.400DRT4P is a reliable and safe solution for various low voltage applications.
The specific data is subject to PDF, and the above content is for reference
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