Electrical Circuit Breaker
 |
 GENERAL ELECTRIC WavePro Air Circuit Breaker Type WPF16  US $6,000.00
|
 GENERAL ELECTRIC CIRCUIT BREAKER THK9VF46 USED US $5,750.00
|
 GE General Electric SKPP36AT1000 Circuit Breaker US $5,289.00
|
 GE General Electric SKPA36AT1200 Circuit Breaker US $3,000.00
|
 GE General Electric SKLA36AT0800 Circuit Breaker US $3,000.00
|
 GE General Electric TB83700 Tri Break Circuit Breaker US $3,000.00
|
 GE General Electric SKHA36AT1200 Circuit Breaker US $1,800.00
|
 NIB General Electric 500A Circuit Breaker TB63500BJ14 US $1,800.00
|
 GENERAL ELECTRIC Circuit Breaker SKHA36AT1200 1200A 3P US $1,795.00
|
 GE General Electric FGL326AA400ML Circuit Breaker US $1,700.00
|
 NEW GENERAL ELECTRIC SGLB36BD0600 CIRCUIT BREAKER US $1,650.00
|
 GENERAL ELECTRIC Circuit Breaker SKHA36AT0800 800A 600V US $1,650.00
|
 General Electric THKM31000 1000 Amp Circuit Breaker US $1,550.00
|
 General Electric Circuit Breaker US $1,500.00
|
 General Electric Mag Break JC36400EUB circuit breaker US $1,500.00
|
 FUJI ELECTRIC CIRCUIT BREAKER BU MSA3F800 NEW SURPLUS US $1,500.00
|
 General Electric 1200 amp circuit breaker SKHA36AT1200 US $1,500.00
|
 General Electric 1200 amp circuit breaker SKPP36BB1200 US $1,500.00
|
How Much Current Does An Industrial Circuit Breaker Control?
Industrial circuit breakers are electrical devices used to break the electrical circuit during overload. It is used in commercial and residential purposes as part of a safety process. Electric circuit breakers are automatically-operated switches to protect the electrical circuit from damage.
Several circuit breakers are classified according to voltage class, construction type, structural features and interrupting type. Under the voltage class, three types of electric circuit breakers can be made. These are the low voltage, medium voltage and high voltage circuit breakers.
The low voltage industrial circuit breakers, containing less than 1000 VAC, are used commonly in residential, commercial and industrial application. There are two sub-types of low voltage circuit breakers, namely the miniature circuit breaker, and the molded case circuit breaker.
The miniature circuit breaker or MCB has a rated current of not more than 100A. It can be operated by thermal or thermal-magnetic operation. However, its trip characteristics are not adjustable.
The molded case circuit breaker or MCCB has a rated current of up to 1000A. Like the MCB, this too can be operated by thermal or thermal-magnetic operation. Its trip current may be adjustable in larger ratings.
Low voltage circuit breakers are made for direct current applications or DC. They have electrical motor operators, which can be opened and closed under remote control. They can be mounted in multi-tiers in low voltage switchboards.
The medium voltage industrial circuit breakers are rated between 1 and 72 kV. They may be assembled into metal-enclosed switchgear line up for indoor. They can also be installed in individual components for outdoors. The characteristics for medium voltage are defined by international standards such as International Electrotechnical Commission 62271.
There are three sub-types under medium voltage. These are vacuum circuit breakers, the air circuit breakers, and the SF6 circuit breakers. The SF6 circuit breaker extinguishes the arc in a chamber of sulfur hexafluoride gas.
The vacuum circuit breakers have a rated current of up to 3000A. They interrupt the electric current by creating and extinguishing the arc inside a vacuum chamber Vacuum industrial circuit breakers are used for voltages up to 35,000 V and tend to last longer.
The Air circuit breakers have a rated current of 10,000A. The trip characteristic is adjustable, which includes configurable trip delays and thresholds. This breaker is used for main power distribution in large industrial plant.
The high voltage circuit breakers are used to protect and control the electrical power transmission networks. Its rated current when used in power transmission is believed to be 72.5 kV, or even higher.
Typically, high voltage circuit breakers are solenoid-operated having current sensing protective relays running through current transformers. They are available with current ratings of up to 765 kV, and are used on transmission systems.
The other two types of industrial circuit breakers are magnetic and thermal-magnetic. The magnetic breakers use a solenoid electromagnet. Its inherent pulling force increases with the electric current. The thermal magnetic circuit breakers are used in distribution boards. They use electromagnet and bimetallic strip to trip the breaker.
All industrial circuit breakers share common operating features. They are set apart from each other in terms of voltage class, current rating and the type of circuit breakers. They are expected to detect faulty conditions.
About the Author
Go to http://www.relectric.com/ and get help finding your industrial circuit breaker. We carry a large supply of breakers. Will a reconditioned circuit break work for you? We can help you choose the breaker you need. Go to Square d breakers and discover your breaker solution.
what does it mean if your air conditioner trips your circuit breaker panel?
Our A/C was not on when we got home from work but the fan was. It showed a red light on the main panel and we reset the circuit breaker. Is this an electrical problem or A/C problem or both?
Make sure the coils on the outside unit are clean. If not, hose them out, then reset the breaker and see what happens. If it trips the breaker again, then you've got deeper issues with the unit. Could be expensive (compressor), could be not so expensive (fan motor) or could be less expensive (contactor or wiring)
If you're lucky, the compressor over-amped due to dirty coils, but if cleaning doesn't do it for you, you're in for a service call.
Good luck
20+ yrs hvac tech
electric hellfire club circuit breaker
You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
Comments are closed.