Circuit Protection Devices Examples. While not all circuits suffer from this problem some designs may incorporate circuitry that has the potential to draw large amounts of current during fault conditions. When a problem exists and the protection device opens the device should isolate the faulty circuit from the other unaffected circuits and should respond in time to protect unaffected components in the faulty circuit.
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For example an installation could include an upstream rccb to provide protection for several downstream circuits some of which also have their own rccb or rcbo. Different types of protection devices. Even though guidance exists in the form of the various electrical codes the wide variety of product offerings can make the proper selection of circuit protection devices a challenge.
The protection device should not open during normal circuit operation.
A manufacturer would use a smaller inline fuse or 20 gauge wire to protect a circuit that consists of 16 gauge wire. Overcurrent protection simply means a fuse breaker or fusible link is used to protect the equipment a circuit in the equipment or the equipment. Fuses a fuse is the simplest circuit protection device. For example an installation could include an upstream rccb to provide protection for several downstream circuits some of which also have their own rccb or rcbo.
