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
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Basic 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.
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Threaded Circuit Breaker Symbol
Here, you can see the symbol of threaded circuit breaker.
Single Pole Circuit Breaker Symbol
Here, you can see the symbol of Single Pole Circuit Breaker. It is only connected to a single-phase conductor.
Double Pole Circuit Breaker Symbol
Here, you can see the symbol of double pole circuit breaker. A double pole circuit breaker is connected to one phase and one neutral or two phases.
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Three Pole Circuit Breaker Symbol
Here, you can see the symbol of three-pole circuit breaker. Three pole circuit breaker is connected with three phases or live supply.
Isolator Circuit Breaker Symbol
Here, you can see the symbol of isolator circuit breaker. It is also known as a circuit breaker with an isolator.
Cartridge Circuit Breaker Symbol
Oil Circuit Breaker(OCB) Symbol
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Air Circuit Breaker(ACB) Symbol
MCB or Moulded Case Circuit Breaker Symbol
Vacuum Circuit Breaker(VCB) Symbol
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All Types of Circuit Breaker Symbols and Diagrams
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