Würth
Varistor (230V CA) - Wurth 820412711
Varistor (230V CA) - Wurth 820412711
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Product details
El varistor Würth 820412711 ofrece protección contra sobretensiones en equipos sensibles que funcionan hasta 275 V CA. Los varistores son muy útiles para evitar daños debido a eventos de alta tensión o descargas electrostáticas mediante el bloqueo de la tensión.
Características
- El varistor funciona inmediatamente después del impulso de sobretensión.
- Tiempo de respuesta <25 ns
- Rango de temperatura de funcionamiento de -45 °C a +85 °C
- Certificación UL1449
Para obtener más información, consulte la hoja de datos .
Questions about this product
How does a varistor help with a transient?
How does a varistor help with a transient?
A varistor becomes more conductive as the voltage rises, diverting transient current and limiting the voltage across it. Select its voltage, surge and energy ratings for the actual circuit.
Can a varistor be used more than once?
Can a varistor be used more than once?
A suitably rated varistor can handle repeated transients within its specified limits, but surges and sustained overvoltage can degrade or damage it. Follow the manufacturer’s ratings and protective recommendations.
Where should I connect a varistor?
Where should I connect a varistor?
Choose its position as part of the complete protection design, commonly across the conductors being protected. Mains-to-earth applications need particular attention to component suitability and the equipment’s safety requirements.
Can you help with larger quantities or product selection?
Can you help with larger quantities or product selection?
Yes. Contact us with the product, quantity and intended application. We can discuss suitability and prepare a quotation for your requirements.