All Types of Circuit Breaker Symbols and Diagrams

Circuit Breaker electrical protective device that breaks the circuit when an electrical fault such as short circuit fault, overload fault occurs. The circuit breaker provides the function to turn on or turn off manually in normal conditions and turn off automatically in the fault condition. There are a lot of applications of circuit breakers in switchgear systems, electrical lines, electrical devices, etc. There are so many types of circuit breakers available and they are categorized by arcing medium, current rating, voltage ratings, response time, working principle, etc. Anyway, you must know all the basic symbols of circuit breakers.

The different types of circuit breaker are,

Normal Circuit Breaker
Non-Draw Out Circuit Breaker
Draw Out Circuit Breaker
Threaded Circuit Breaker
Single Pole Circuit Breaker
Double Pole Circuit Breaker
Three Pole Circuit Breaker
Isolator Circuit Breaker
Cartridge Circuit Breaker
Air Circuit Breaker or ACB
Oil Circuit Breaker or OCB
Vacuum Circuit Breaker or VCB

Basic Symbol of Circuit Breaker

Circuit Breaker Symbol, Symbol of Circuit Breaker

Before, going to know different types, you must know the basic symbol of circuit breaker. Because this is only mostly used everywhere.

Non Draw Out Circuit breaker symbol

Here you can see the symbol of non-drawout circuit breaker. Non-draw-out circuit breakers are those, during maintenance the current flow through them should be stopped.

Draw Out Circuit Breaker Symbol

Here, you can see the symbol of draw-out circuit breaker. Draw out circuit breakers are those, during the maintenance current flow through them is not required to stop. The current flow can be bypassed.