Product/Service

Circuit Breakers

Source: Circuit Breaker Sales Co.
We have the largest inventory of low and medium voltage circuit breakers in the world
Circuit Breaker Sales Co. largest inventory of low and medium voltage circuit breakers in the world.

This includes new breakers from General Electric, Westinghouse-Cutler-Hammer, Siemens, ABB, etc. as well as every obsolete low voltage & medium voltage power circuit breaker made since World War II.

Our breaker categories are illustrated below:

Low Voltage (600 Volts)

Air Circuit Breakers Insulated Case Breakers Molded Case Breakers
Category Low Range High Range
Voltage 208 Volts 600 Volts
Current 400 Amps 5000 Amps
Interrupting Capacity 22 kAIC 200 kAIC
Trip Ratings Long Time,
Instantaneous (LI)		 Long Time, Short Time, Instantaneous,
and Ground Fault (LSIG)
Auxiliaries 1 no/1 nc 4 no/4 nc
Electrical Operators (list voltage) All ranges All ranges
Shunt Trips (list voltage) All ranges All ranges
Under voltages (list voltage) All ranges All ranges
Fuses (limiters) 800 Amps 4000 Amps

Medium Voltage (5-27kV)

Medium Voltage (5-27kV)
Vacuum Breakers Air Breakers
Category Low Range High Range
Voltage 2400 Volts 34,500 Volts
Current 600 Amps 3000 Amps
MVA Rating 150 MVA 1000 MVA
Auxiliaries 1 no/1 nc 4 no/4 nc
Shunt Trips (list voltage) All ranges All ranges
Undervoltages (list voltage) All ranges All ranges
Fuses (limiters) 800 Amps 4000 Amps



We stock the following manufacturers products:

Low Voltage Medium Voltage
  • GE
  • Westinghouse-Cutler-Hammer
  • Siemens-Allis Chalmers
  • ABB-BBC-ITE-Gould
  • Federal Pacific
  • Square D
  • Roller Smith
  • GE
  • Westinghouse-Cutler-Hammer
  • Siemens-Allis Chalmers
  • ABB-BBC-ITE-Gould
  • Federal Pacific
  • Square D


Let us do a stock check for you on any breaker type that you need.

    Simply enter a description or list the manufacturer's type and catalog number. We know all the part numbers, so either way will work for us.

We also rebuild, repair and retrofit breakers. If you'd like a price on repairing or upgrading your breaker(s), just send us an e-mail message.

Also see our Repair and Retrofit page. <%=company%>