Single pole operated circuit breaker

A single-pole operated circuit breaker is a type of circuit breaker that is designed to interrupt the flow of electrical current in a single phase circuit. It is typically used in residential and commercial applications where a single-phase power supply is required.

Here are some key characteristics of a single-pole operated circuit breaker:

  1. Single-pole operation: The breaker is designed to operate on a single pole, which means it can only interrupt the flow of current in one phase of a three-phase circuit.
  2. Low voltage rating: Single-pole operated circuit breakers are typically rated for low voltage applications, such as 120/240V or 208V.
  3. Simple design: The breaker has a simple design with a single moving part, which makes it easy to install and maintain.
  4. Low cost: Single-pole operated circuit breakers are generally less expensive than three-pole breakers, making them a cost-effective option for many applications.
  5. Limited fault current capacity: Single-pole breakers are designed to interrupt fault currents up to a certain level, typically around 10-20 kA. If a fault current exceeds this level, the breaker may not be able to interrupt the current and may require replacement.

Some common applications for single-pole operated circuit breakers include:

  1. Residential electrical systems: Single-pole breakers are commonly used in residential electrical systems to protect individual circuits and appliances.
  2. Commercial electrical systems: Single-pole breakers are used in commercial applications, such as office buildings, retail stores, and restaurants, to protect individual circuits and equipment.
  3. Industrial electrical systems: Single-pole breakers are used in industrial applications, such as manufacturing facilities, to protect individual circuits and equipment.

Some common types of single-pole operated circuit breakers include:

  1. Molded case circuit breakers: These breakers have a molded plastic case and are designed for indoor use.
  2. Plug-in circuit breakers: These breakers have a plug-in design and are designed for easy installation and replacement.
  3. Surface-mount circuit breakers: These breakers are designed for surface mounting and are often used in industrial applications.

Overall, single-pole operated circuit breakers are a reliable and cost-effective option for protecting electrical circuits in a variety of applications.