Proper Wire Sizing and Protection of Circuit Fuse

Proper Wire Sizing and Protection of Circuit

Fuse A fuse is a one time use device that protects the circuit from overloading. If the circuit is overloaded the fuse will “blow” (the filament in the fuse will melt in two) The size of fuse used will depend on the size of wire that is being used in the circuit

Wire Size and Fuse Size Wire Size 14 AWG 12 AWG 10 AWG 8 AWG 6 AWG Fuse Size 15 Amps 20 Amps 30 Amps 40 Amps 55 Amps

Types of Fuse Cartridge Fuse Blade Fuse Power Fuse

Types of Fuse 10 & 20 Amp Fuses FRC Distribution Panel

Circuit Breaker A circuit breaker is a device that is used to keep the circuit from becoming overloaded. Overloaded circuits become hot and can catch fire. Will “trip” if overloaded The size of breaker depends on the size wire that is being used on the circuit.

Circuit Breaker FRC Main Circuit Breaker 120 Amp circuit breaker

Circuit Breaker 20 Amp 30 Amp 40 Amp FRC Snap Action Breakers FRC Distribution Panel

Wire sizes AWG = American Wire Gauge – a standard for designating the size of electrical wire The larger the number, the smaller the diameter of the wire. The smaller number, the larger the diameter of the wire

Stranded Wire Gauge Solid Wire

Wire Gauge

12 VDC Wire Size Selection

Wire Size Labeling National Electrical Code (NEC) state that all electrical conductors have the following info stamped on the wire AWG Size Insulation Type Number of Conductors Voltage Rating Testing Agency

Wire Stripper Used to strip plastic coating from solid electrical wires without damaging the wire. Can be adjusted to be used on various wire sizes.

Wire Stripper And Crimping Tool Used for stripping wire, cutting wire and crimping wire terminals on stripped wire ends.

Solderless Connector Used where a permanent connection is desired. Connectors can be insulated or un-insulated. Commonly used for wiring on mobile equipment.

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