Allicdata Part #: | 0305.200T-ND |
Manufacturer Part#: |
0305.200T |
Price: | $ 9.15 |
Product Category: | Circuit Protection |
Manufacturer: | Littelfuse Inc. |
Short Description: | FUSE BRD MNT 200MA 277VAC/VDC |
More Detail: | N/A |
DataSheet: | 0305.200T Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
10 +: | $ 8.31600 |
Series: | PICO® 305 |
Packaging: | Bulk |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Fuse Type: | Board Mount |
Current Rating: | 200mA |
Voltage Rating - AC: | 277V |
Voltage Rating - DC: | 277V |
Response Time: | -- |
Applications: | Hazardous Locations |
Features: | Intrinsically Safe |
Class: | -- |
Approvals: | ATEX, cURus, IECEx |
Operating Temperature: | -40°C ~ 50°C |
Breaking Capacity @ Rated Voltage: | 1.5kA |
Mounting Type: | Through Hole |
Package / Case: | Radial, Can, Horizontal |
Size / Dimension: | 0.354" Dia x 0.614" L (9.00mm x 15.60mm) |
Melting I²t: | 0.00288 |
DC Cold Resistance: | 2.68 Ohms |
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Electrical, Specialty Fuses: 0305.200T Application Field and Working Principle
The 0305.200T fuse is a general purpose fuse designed for indoor and panel board applications. It is fast-acting, with a dual element construction ensuring immediate reaction to overcurrent faults. It utilizes silver-plated copper clips that offer superior current-carrying capacity, and is solidly made with a robust design for longer lasting durability. This fuse is also UL listed and CSA certified for safety.
Application Area
The 0305.200T is ideal for use in residential and commercial buildings. It can be used in various types of lighting and electrical circuits, disconnects, short-circuit protection, and fuse panels. Other applications include motor control centers, heating and air conditioning, and distribution panels.
Working Principle
A fuse is a device that is designed to protect an electrical circuit from overload. It consists of a metal strip or wire that melts when too much current is drawn, thus blocking the current and preventing the circuit from short-circuiting. The 0305.200T is a time-delay fuse which has a dual-element construction. There is a slow-burn element (typically made from a metal strip coated with a thin layer of insulating material) and a fast-acting element (typically made from a metal alloy such as silver-plated copper). The fast-acting element is designed to sense high current flow and react quickly to interrupt the current, while the slow-burn element is designed to allow a small amount of current to flow before tripping the circuit.
When a current is applied to the fuse, the fast-acting element senses the high current flow and immediately begins heating up. It reaches a "hot spot" or resistance point quickly, further increasing the temperature of the surrounding wiring and accelerating the melting process. Once the hot spot melts, it creates an interruption of the current flow, and the slow-burn element is triggered. The slowly burning element then takes over, melting at a much slower rate while allowing a small amount of current to flow.
Once the slow-burn element has melted, the circuit is completely interrupted, and the power is cut off. This protection helps to prevent damage to the circuit or wires, and in some cases can help to protect lives and property by cutting power before a potentially dangerous situation can occur.
Conclusion
The 0305.200T is an excellent choice for residential and commercial buildings where reliable circuit protection is required. It has a dual-element construction which can react quickly to overcurrent faults, and is UL listed and CSA certified for safety. Its solid design and silver-plated copper clips make it ideal for indoor and panel board applications, and its fast-acting response helps to keep circuits safe from damage.
The specific data is subject to PDF, and the above content is for reference
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