Interlock Switches | Kempston Controls Electronic Components Distributor (2024)

FAQs

What is the function of a safety interlock switch? ›

Safety interlock switches are used as interlock devices that can prevent machine operation or startup in an unsafe situation, such as when a door or guard is open. Interlock devices with a locking function can also prevent doors or guards from being opened while the machine is in operation.

Interlock in a switch refers to a mechanism that physically prevents the establishment of more than one electrical connection at a time. This mechanism ensures that a switch cannot be turned on and off simultaneously, reducing the risk of electrical arcing, short circuits, or damage to equipment.

Kempston Controls was established in 1940 as a distributor of American manufactured components. We developed our business over the years that followed to service the needs of a much broader audience, becoming a leading UK specialist technical distributor of electrical and process control components.

In most applications, an interlock is used to help prevent any damage to the machine or to the operator handling the machine. For example, elevators are equipped with an interlock that prevents the moving elevator from opening its doors and prevents the stationary elevator (with open doors) from moving.

In residential or light commercial use, the interlock switch is moved from the main power breaker to the generator breaker when the utility power goes out. The main breaker and all other breakers must be turned off, the interlock switch is set to generator, and then the generator is engaged.

Prevent Somebody From Starting Their Car While Intoxicated

Ignition interlock devices are intended to prevent drivers from starting their vehicle after they've been drinking alcohol. Therefore, your car will only start if your breath sample passes. Each state handles failed breath samples differently.

Machine safety interlocks are best applied, as part of or in conjunction with, existing machine guards and devices to help prevent personal injury or machine damage. This is accomplished by interrupting machine operation through isolating and withholding the source of energy.

Interlock machines are specialized machines designed to create overlock stitches, which are used to finish fabric edges, prevent fraying, and provide a neat and professional-looking seam. These machines are highly versatile and are essential for creating durable and finished seams in a variety of sewing projects.

An electrical interlock is an interlock that is used to restrict current flow between two or more devices. These types of interlocks use normally open and normally closed contacts to prevent another device from turning on.