Phoenix Contact Circuit Breakers

FAQs

Does a Phoenix Contact circuit breaker, specifically their device circuit breaker provide overcurrent protection to electronics?

Yes, Phoenix Contact device circuit breakers, such as those in the CB and CBMC series, provide overcurrent protection to electronics by interrupting the circuit when excessive current is detected, thereby safeguarding sensitive electronic equipment.

Do Phoenix Contact miniature circuit breakers provide ideal protection against voltage dips and short circuit currents?

Yes, Phoenix Contact miniature circuit breakers (MCBs) provide ideal protection against short circuit currents and are designed to maintain system stability by preventing voltage dips during fault conditions, ensuring the reliable operation of electrical systems​.

What is a Circuit Breaker?

Magnetic Breakers

Magnetic Breakers are designed to react to short circuits or sharp spikes in voltage and current. The more current that passes through the breaker's electromagnet, the stronger the magnet becomes. When the current exceeds the rating for that particular breaker, the magnetic force becomes strong enough that it will pull the contact back and disconnect it from the other contact, disconnecting power from the device.

Thermal Protection Breakers 

Thermal Protection Breakers protect against a sustained overcurrent, or a higher current, for a longer period of time. Thermal protection uses a Bimetal strip that will bend the contacts away from each other to disconnect power. Thermal Magnetic Breakers are the most common type of circuit breakers. They combine magnetic technology to protect against short circuits or sharp spikes and thermal technology that protects against sustained overcurrent for a long period of time.