Fuses
Fuses are protective devices which breake the circuit in which they are connected, when the electrical power overcomes a certain level of time or value, by melting one or more fusible elements. They may be protected by a ceramic coating, or encapsulated in plastic, or mounted on a ceramic substrate
Description:
Fuses are protective devices which interrupt the circuit in which they are connected, when the electrical power overcomes a certain level of time or value, by melting one or more fusible elements. They may be protected by a ceramic coating, or encapsulated in plastic, or mounted on a ceramic substrate. Fuses are divided into two classes of operation, defining the power they can interrupt: class of operation g (general purpose fuses) - includes those fuses whose replacement elements resist to currents less or equal to their nominal current - or class of operation a (associated fuses) includes those fuses whose replacement elements resiste to currents less or equal to their nominal current and can interrupt, in precise conditions, all the currents starting with a certain multiple of their nominal value to their breaking value.
Typs of fuses:
- Quick
- Late
- Industrial
- Auto
Specifications:
- Type of ceramics: industrial
- Breaking capacity: 120kA
- Nominal current: 10, 16, 32A
- Dimensions: 10.3 x 38 mm
- Plastic case, resistant to flame
- Nominal voltage: 400, 500, 600V AC
- Insulation voltage: >2500V
- It can be mounted directly in the consumer
- Protection: IP44
- Conductors' section: up to 35 mm
- Environmental temperature: from -5 to + 55 Celsius degrees
Applications:
- Starting circuits of engines
- Switchboards, cars, appliances
- Electrical installations
- Into home appliances
- In switchboards of the cars etc
Strengths:
- Higher response time in case of short circuit current
- Shutter speed and high reliability
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