4 Pole Double Throw Knife Switch with LED Indicator

Reliable 4 pole double throw switch has a resin base, manual operation mode and transparent LED indicator. 32A/63A/100A/160A/225A current for selection. Factory price changeover knife switch is usually used in high voltage or extra high voltage power systems to cut or connect power lines. 

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Wiring Diagram

Tips: Double Throw Knife Switch vs. Single Throw Knife Switch

A double-throw knife switch and a single-throw knife switch are two different types of electrical switches that serve distinct purposes.

A single-throw knife switch, also known as a toggle switch, has a lever that can be manually moved between two positions to either complete or interrupt the electrical connection. It controls a single circuit and is typically used for simple on/off operations. Single-throw switches are commonly found in household appliances, lighting systems, and small electronic devices.

On the other hand, a double-throw knife switch provides an additional position or set of contacts compared to a single-throw switch. It has two separate circuits or conductors that can be controlled independently. This allows for the redirection of electrical flow between two different paths or destinations. Double-throw switches are commonly used in applications where circuit switching, bypassing, or safety measures are required. They are often found in industrial settings, power distribution panels, and electrical control systems.

In summary, while a single-throw knife switch controls a single circuit with two positions (on/off), a double-throw knife switch allows for the switching of electrical circuits between two different paths or destinations, offering more versatility and flexibility in electrical control.