Electrical Management: Efficient Solutions by EKF
There are many devices with which the state of electrical circuits and the control of various electrical equipment are monitored. EKF offers a wide range of monitoring and control devices from which you can choose the right device for a specific task, regardless of its level of complexity.
Light signalling hardware
Light signalling hardware is the devices that are used to know the condition of electrical circuits and to monitor the operation of electrical equipment. For example, they show whether the circuit is on or off, whether there is voltage in it or not.
A light signalling device is a light bulb in a plastic or metal case with a transparent color cap or a lid having a flat color insert - a light filter.
EKF produces many models of light signalling indicators of various colors (red, green, yellow, blue, white), shapes and designs. There are devices with a plastic and metal case, monolithic and collapsible, with LED and neon light sources, with installation diameters of 22 and 16 mm.
The EKF range of light signalling hardware also includes an indicator that displays the voltage value, and a siren that delivers an acoustic signal rather than a light signal.
Light signalling hardware can be installed, for example, in devices for automatically switching on the backup power supply, input distribution cabinets and electrical panels.
in cases where it is necessary to provide the ability to remotely and quickly turn on or off electrical equipment, control buttons are used.
With their help, closing or breaking the circuit, you can turn the lighting system on or off, turn on or off the electrical equipment, start the process or stop it.
According to the type of contacts, the control buttons are divided into closing, opening and combined. The latter have two types of contacts and can both open and close the controlled circuit.
Depending on the control method, the buttons can be divided into push and turn. The push-type device group includes return and latch buttons. The former, after removing the effort, take their original position, the latter return to their original position only when pressed again.
The turn buttons, in fact, are also push-buttons, since they are translated into the working position by pressing - they need to be rotated only in order to return to their original position.
The EKF product range includes buttons of various types: push and turn, return and latching, single and double, with or without backlight.
The installation location of the control buttons can be, for example, a keypad, an electric distribution board, a test bench.
To control various devices, for example, contactors, controllers and regulators, two- and three-position changeover switches are used.
With their help, you can turn on and off electrical devices, switch operating modes of electrical equipment, start and stop various technological processes.
There are models of changeover switches with a handle and a key. The second allows you to restrict access to circuit management. In addition, due to the lack of a handle, they are ideal for installation in places where there is little free space.
Changeover switches are available in versions with self-reset and without self-reset. The rotary part of the first automatically returns to its original position after the operation of the switch. The second is returned manually.
The EKF range of switches includes models with a handle and a key, returnable and non-returnable, collapsible and monolithic, with and without backlight.
Quite often, in the switchboard equipment, test stations and control panels, cam switches are used. The name of these switching devices is due to the fact that cam elements that close the contacts are part of their design.
These switches are used for switching power circuits, as well as control circuits. They can be used, for example, to control the operation of equipment fitted with a single- or three-phase electric motor, electric heating technology and electric welding machines.
In addition, cam switches are often used to organize bypass lines. With their help, you can temporarily put some devices or parts of the circuit out of work for their prevention or repair by organizing a bypass branch.
EKF offers standard and three-phase cam switches designed for installation on the front panel of switchboard equipment, as well as 3-phase cam switches in a protective box with a degree of protection IP54, which are installed on a circuit board.
The EKF line of cam-type circuit breakers also includes a model for a voltmeter, with which you can measure 6 types of voltage - 3 phase ones and 3 linear ones.
One of the ways to organize remote switching circuits is to use push-button stations. Button control station is a plastic or metal box with buttons installed in it. It is usually used to control equipment fitted with electric motors.
EKF offers plastic push-button stations for fixed installation and portable push-button stations PBS. Using a button station, you can, for example, create a control panel for a machine, crane or winch mechanism. The range of EKF includes a one-button station, a button station for 2 buttons, as well as stations for 3, 4, 5 and 6 buttons.
The PBS series consoles are designed to control various mechanisms by which the lifting of goods, for example, cranes and hoists, is carried out. Available with 2, 4 and 6 buttons.
Push-button switches with Interlock
Interlock switches are switching devices with two latching Start and Stop buttons. Quite often, they are used at construction sites to control a temporary lighting system, power tools, compressors, concrete mixers, heating equipment and other electrical equipment.
EKF offers three models of push-button switches with interlocks - 6, 10 and 16 A. The switches have a metal housing with a degree of protection IP40, a sealing gland on the cable entry and a contact for organizing a visible ground loop.
Packet and changeover switches
Packet and changeover switches are devices that consist of several contact sections (packages) located on the same axis. Not so long ago they were widely used in switchboard equipment for switching circuits. But with the advent of circuit breakers on the market, they began to be used much less frequently.
Nevertheless, due to their low cost, compactness and large switching resource, “packages” still find their application, being used to manually control the operation of various systems, machines and mechanisms (conveyors, machine tools, lifting equipment, lighting devices, etc.)
EKF offers a wide range of batch switches and switches in various designs: with silumin casing (IP56), flame retardant shockproof plastic casing (IP56), carbolite casing (IP30), without casing (with front or rear bracket fastening).
Note that the "packages" from the company EKF are designed for currents up to 100 A. If you want to switch the load in more powerful circuits, instead of the packet switch, you can use a reversible knife switch made by EKF.
Limit and travel switches
In order to control the movement of a particular mechanism, limit (travel) switches are used. They close or switch the circuit when the moving part of the mechanism or machine reaches a certain point in its path (travel) or reaches the zone in which its further movement should be stopped (limit).
Depending on the type of drive device, the switches are divided into lever, roller and button. Models with a button are installed in places where the mechanism should begin or end its movement, and devices with a roller or lever - at intermediate points along the path of movement of the mechanism.
Limit and travel switches are used, for example, to control the operation of crane equipment, conveyors, machine tools, elevators, escalators, automatic gates.
The range of EKF limit (travel) switches includes devices of the VK, KU-7, VP-15Ki series, the designs of which were developed back in Soviet times, as well as modern models of the TZ-8 series.
The TZ-8 line includes compact switches of lever, roller and push-button types with an aluminum alloy base. Their advantages include the presence of an instant switching mechanism, a high degree of dust and moisture protection (IP65), the ability to turn the lever 90, 180 and 270 degrees.