Electrical Symbols - Safety Devices

Front

2-P___ M_______ B______

Back

A 2-Pole Magnetic Circuit Breaker is used to protect electrical circuits by interrupting current flow in the event of an overload or short circuit.

Front

3 P___ T______ C______ B______

Back

A 3 Pole Thermal Circuit Breaker is used to protect electrical circuits from overload or short circuits by interrupting the current flow.

Front

This is a safety device that protects electrical circuits by melting and breaking the circuit when excessive current flows through it.

Back

A fuse prevents damage to electrical components by interrupting the flow of current.

Front

This is another symbol

Back

Fuse

Front

Fusible Link

Back

A fusible link is a device used in fire protection systems that melts at a specific temperature to allow a fire suppression system to activate. It is commonly used in automatic fire sprinkler systems.

Front

B______ O_______ P________

Back

Bimetal Overload Protector

Front

T______ O_______ P________

Back

A device that protects electrical circuits from overheating by interrupting the current flow when a preset temperature is exceeded.