circuit breaker blogs- High Voltage Oil Circuit Breaker – A look inside the tank January 31, 2013Have you ever wondered what the inside of an old high voltage oil circuit breaker looks like? Maybe you have driven by a utility substation and saw three large round tanks hanging on a frame with high voltage wires coming into tall insulators on the top of each tank. Well, these actually are oil filled […]MIDWEST
- Image of Circuit Breaker Main and Arcing Contacts July 9, 2012When discussing circuit breakers, we like to have good images to show the difference between the main contacts and the arcing contacts. When a circuit breaker opens, the main contacts should open partially first before the arcing contacts start to open. There should be no arcing damage to the main contacts because the arc […]MIDWEST
- Circuit Breaker – POJ with perfect test results May 30, 2012Sometimes MIDWEST’s Engineering Technicians in our Switchgear Shop like to do what the Engineers call “Play.” The technicians call it serious research. Sometimes their adventures are quite worthwhile, even enlightening. Recently an Engineering Technician dropped a circuit breaker test form on an Engineer’s desk and said, “Would you take a look at that and […]MIDWEST
- Cutler Hammer Circuit Breaker Trip Indication April 20, 2012MIDWEST gets lots of phone calls from folks desperate for a little technical help. Sometimes they know very little about electrical equipment, circuit breakers for example. These are the most difficult calls because the caller may be putting themselves in harms way and not know it. We could tell them what to do, but […]MIDWEST
- Seeing Is Not Believing – Barrels of Junk Circuit Breakers March 12, 2012This is another blog on MIDWEST’s barrels of junk circuit breakers. More specifically it is about the difficulty of not believing something you can’t see. This human factor can frequently be a challenge in our world when a customer has a perfectly good looking circuit breaker and we tell them it is no good and […]MIDWEST
- High Voltage Oil Circuit Breaker – A look inside the tank January 31, 2013
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- Circuit Breakers interrupt full load currents in microseconds.Intended for commercial micro-grids and military DC power distribution systems, PowerMod™ Solid-State MVDC Circuit Breakers open in less than 700 ns, providing load protection in event of fault. Modules offer more than 99.7% efficiency and can switch power around fault for high uptime applications. At 10 kV, 50 Adc module measures 12 x 5 x 3 in. and is […]
- Low-Voltage Circuit Breaker integrates energy management.Emax 2 is replaces traditional breakers where protection and control of large amounts of energy are used in low-voltage environment, such as industrial and commercial buildings, data centers, or ships. To maintain or reduce peak power usage as determined by user, included protection trip relay with integrated power controller measures and evaluates energy co […]
- Thermal Magnetic Circuit Breaker offers interchangeable design.Offered in 1- and 2-pole configurations, Model 2216 is rated to 277 Vac/80 Vdc and offers 0.5–16 A current range. Circuit breaker and socket concept enables interchangeability of circuit breaker technology or current ratings without need to touch wiring or associated power distribution busbar system. Circuit breaker functionality resides in 12.5 mm plu […]
- Circuit Breakers interrupt full load currents in microseconds.
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Westport Apparatus
Westport Apparatus is a business to business wholesale electrical distributor for circuit breakers established in 1986. Westport Apparatus is not a marketing company but a Genuine wholesale stocking distributor. Our warehouse is located in Orange , California. Types of … Continue reading