1. Producte acabatview
The Littelfuse WOO1 is a 1 Ampere, 125 Volt plug fuse designed to protect electrical circuits from overcurrent conditions. It is a critical safety component that interrupts the flow of electricity when a fault or overload occurs, preventing damage to appliances, wiring, and reducing the risk of fire.
This manual provides essential information for the safe and effective use of your Littelfuse WOO1 plug fuse, including installation, operation, maintenance, and troubleshooting.

Figure 1: Littelfuse WOO1 1A 125V Plug Fuse. This image displays the compact design of the fuse, highlighting its metal screw-in base and the transparent body that allows for visual inspection of the fuse element.
2. Informació de seguretat
ADVERTÈNCIA: Risc de descàrrega elèctrica o incendi.
Always follow these safety precautions when handling electrical components:
- Desconnecteu l'alimentació: Before installing, inspecting, or replacing any fuse, always ensure the power supply to the circuit is completely disconnected at the main breaker or fuse box. Verify power is off using a voltage provador.
- Use Correct Rating: Only replace a fuse with one of the exact same type, voltage, i ampere rating (e.g., 1A 125V). Using a fuse with a higher rating can lead to circuit overload, wiring damage, and fire.
- Personal qualificat: If you are unsure about any electrical work, consult a qualified electrician.
- Mans seques: Ensure your hands are dry when working with electrical components.
- Inspeccionar per danys: Do not use fuses that appear damaged or corroded.
3. Configuració i instal·lació
The Littelfuse WOO1 is a plug-type fuse, typically used in older fuse boxes or specific appliances. Follow these steps for proper installation:
- Identificació del fusible fundit: If replacing a blown fuse, identify the circuit that has lost power. A blown plug fuse often has a visible break in the internal wire or a darkened window.
- Desconnecteu l'alimentació: Locate the main electrical panel or fuse box. Turn off the main breaker or pull the main disconnect switch to completely de-energize the system.
- Treure el fusible vell: Carefully unscrew the old, blown plug fuse from its socket.
- Inseriu un fusible nou: Take the new Littelfuse WOO1 (1A 125V) fuse. Align it with the fuse socket and gently screw it in clockwise until it is snug. Do not overtighten.
- Restaura l'alimentació: Once the new fuse is securely in place, return to the main electrical panel and restore power by turning the main breaker back on or re-engaging the disconnect switch.
- Verificar el funcionament: Check if power has been restored to the affected circuit.
Nota: If the new fuse blows immediately upon power restoration, there is likely a short circuit or overload condition in the wiring or appliance. Do not continue to replace fuses without addressing the underlying issue.
4. Principis de funcionament
A plug fuse like the WOO1 operates on a simple principle: it contains a metal wire or strip that is designed to melt and break when the current flowing through it exceeds a safe level for a certain duration. This interruption of the circuit protects electrical equipment and wiring from damage due to overcurrents, which can be caused by short circuits or overloads.
El 1 Ampere rating of the WOO1 fuse means it is designed to safely carry up to 1 Ampere of current. If the current consistently exceeds this value, the fuse element will heat up and melt, opening the circuit and preventing potential hazards.
5. Manteniment
Fuses are generally maintenance-free components. However, periodic inspection can help ensure the safety and reliability of your electrical system:
- Inspecció visual: Occasionally, with power disconnected, visually inspect fuses in your fuse box for any signs of damage, corrosion, or discoloration.
- Emmagatzematge adequat: Store spare fuses in a dry, cool place, away from direct sunlight and extreme temperatures, to maintain their integrity.
- Substitució: Replace any fuse that has blown. Do not attempt to repair a blown fuse.
6. Solució De Problemes
The primary troubleshooting scenario for a fuse is when it blows. If a circuit loses power, follow these steps:
- Identificació del fusible fundit: Go to your fuse box. A blown plug fuse will often have a darkened window or a visible break in the internal filament.
- Determinar la causa: Before replacing the fuse, try to identify what caused it to blow. Common causes include:
- Sobrecàrrega: Too many appliances or devices drawing power from the same circuit. Unplug some devices.
- Curtcircuit: Damaged wiring or a faulty appliance creating a direct path for current, bypassing normal resistance. Disconnect all appliances from the circuit.
- Substituïu el fusible: With power off, replace the blown fuse with a new Littelfuse WOO1 (1A 125V) fuse, following the installation steps in Section 3.
- Circuit de prova: Restore power. If the fuse blows again immediately, do not replace it further. This indicates a persistent short circuit or severe overload that requires professional attention.
- Ajuda professional: If you cannot identify the cause of the blown fuse or if fuses continue to blow, contact a qualified electrician.
7. Especificacions
Key specifications for the Littelfuse WOO1 Plug Fuse:
| Atribut | Valor |
|---|---|
| Marca | Littelfuse |
| Número de model | WOO1 |
| Valoració actual | 1 Ampere (1A) |
| Voltage Classificació | 125 Volts (125V) |
| Tipus | Plug Fuse |
| Pes de l'article | 1.6 unces |
| Fabricant | LITTELFUSE |
| ASIN | B016X3TANU |
| UPC | 079458450316 |
8. Garantia i Suport
Specific warranty information for the Littelfuse WOO1 plug fuse is not provided in this manual. For details regarding product warranty, please refer to the original product packaging or contact Littelfuse directly through their official weblloc.
For technical support or further inquiries, please visit the official Littelfuse website or contact their customer service department. Always ensure you have the product model number (WOO1) and any relevant purchase information ready when seeking support.
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