What is a mechanically interlocked contactor?

Mechanical Interlock General: Type S contactors or starters can be mechanically interlocked so that only one device is energized at a time. The mechanical interlock is an interference (non-jamming) type, locking at the beginning of the stroke of any starter or contactor.

What does mechanically interlocked mean?

1) Mechanical interlock A mechanical interlock is an interlock that is physically connected to another device to prevent unintended actions.

What is the forward and reverse contactor interlock mechanism?

When the motor is running forward, a normally closed contact (F) on the forward contactor opens and prevents the reverse contactor from being energized by mistake and by closing. The same operation occurs if the motor is running in reverse. Electrical interlocks are usually mounted on the side of a motor starter.

What is the purpose of a mechanical interlock in dual contactors?

What is the mechanical interlock used for? To physically prevent both contactor armatures from being close to the same time.

What is the purpose of interlocking?

According to this definition, an “interlocking device” or “interlock” is a “mechanical, electrical or other type of device, the purpose of which is to prevent the operation of hazardous machine functions under specified conditions” (generally as long as the guard has not closed).

What is the difference between electrical interlock and mechanical interlock?

Mechanical interlocking involves key system and the process of changing, opening and closing the circuit is mechanical. Extra manpower is required in switching operation of the circuit. Electrical interlocking is automation in interlocking and switching operation is performed automatically and electrically.

What are interlocks used for?

An interlock can be defined as a device that prevents you from making an inappropriate maneuver, or adjusts the system to a safe state if you make an inappropriate maneuver.

What is an interlocking system and how it works?

Interlock devices are electronic breath-testing devices which link to the ignition system of cars, motorcycles and heavy vehicles. Before you can drive your vehicle, you will have to complete a breath test on the interlock. If the device detects that you have alcohol in your body, the vehicle will not start.

What is mechanical interlock and electrical interlock?

Mechanical and Electrical Interlock Units. Application. When mounted between two contactors, the mechanical interlock unit prevents one of the contactors from closing as long as the other contactor is closed. Description.

What is interlock wiring?

To interconnect the motor circuit in such a way, in which the second motor will not start until the first one run likewise the third one motor will not run unless the second one run and so on. This kind of motor circuit connection is called interlocking.

Why choose an ABB contactor?

The AS contactor is efficient and allows you to optimize your equipment design. You can choose terminals between screw, push-in spring and ring tongue through our ranges. So whatever your need of a contactor might be, ABB will have a variant meeting just that.

What is the AF contactor technology?

The AF contactor technology revolutionizes how we use contactors and allows use in all parts of the world and in all network conditions. Furthermore, mini-contactor range offers compact dimensions and specific connection possibilities.

What is a VM mechanical interlock unit?

The VM mechanical interlock units are designed for the interlocking of two AF contactors. When mounted between two contactors, the VM mechanical interlock unit prevents one of the contactors from closing as long as the other contactor is closed.

How many fixing clips are included in the mechanical interlock units vm4/vm96-4?

The mechanical interlock units VM4 and VM96-4 include 2 fixing clips (BB4). 5. Small Equipment (No External Dimension More Than 50 cm)