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Signage Civil & MEP

Al Inshrah is also well known in the industry, as the leading manufacturer and supplier of all kinds of Signs, Underground Warning tapes, Engraving, Acrylic Fabrication etc.

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Busbar Trading

Al Inshrah also plays a major role in busbar trading, as we are one of the leading stockists of Tinned/Bare Copper Busbar in the Middle East.

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Signage Material Trading

We deliver really a wide range of sign materials both for indoor uses and outdoor purposes. PVC/Traffolyte/Acrylic Sheets/Engraving Cutter, Colour vinyl rolls, Indoor/Outdoor...

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Control Panel Accessories

Ammeter Selector Switch
Ammeter Selector Switch
Ammeter Selector Switch

The Ammeter Selector Switch - as the name suggests - is connected to an Ammeter, the purpose being monitoring of current in all the three phases (and, if needed, also in the neutral) using only one ammeter.

The Selector switch provided for ammeter is to check the amount of current taken from each phase supply ; ie,R,Y,B. Each phase supply should be covered with a Current Transformer (CT) with the rated Amps capacities. The two lead of each phase CT are connected to the respective leads in the selector switch of the ammeter.

Comb Busbar
Comb Busbar
Comb Busbar

Al Inshrah's product range comprises fork and prong connecting busbars for making connections of low voltage modular equipment. The insulated busbars provide permanent and safe connections among various items of low voltage modular equipment in switching stations. We make high quality connecting busbars. Al Inshra busbars are made of PVC material, M1E copper, has an insulating strength of 2.5KV and ensures stable operation from -20 degree Celsius to +50degree Celsius.

Control Transformers
Control Transformers
Control Transformers

A control transformer is a device used to transform or "step down" a high main circuit voltage to a lower voltage which is then used to operate the control or switching components of the main circuit. These devices are commonly used in industrial starter circuits where the main circuit voltage is not suitable for use in the control circuit and where a separate control circuit feed would not be practical. For example in a starter panel designed to start a 500 volt electric motor, the contactors and relays used to switch the motor on or off would typically use electromagnetic coils rated for a far lower voltage. To supply this voltage without the need for a separate power feed, power is tapped off the main incoming 500 volt feed and passed through a control transformer which would then supply the lower control circuit voltage.

Heavy electrical machinery that starts automatically or remotely generally makes use of contactors which rely on an electromagnetic force to close them to start the machinery. This force is created by an electric coil placed in the center of a laminated steel core. These coils are typically designed to operate at fairly low voltages, ranging from 110 volts to as low as 12 volts. As these machines themselves typically run on far higher voltages, this creates the need for a separate control voltage feed. Instead of having to run separate cables or install extra sets of bus bars, it is far simpler to use the main circuit voltage and step it down with a control transformer to the appropriate control voltage.

Low control circuit voltages are used for various reasons including the fact that parts of the control circuit include push buttons in a remote control room, on the starter panel door, and at the machine itself. It would not be wise to have high voltages used in these applications for obvious safety reasons. It is also undesirable to have densely packed control wiring carrying very high voltages inside the starter panel either. For these reasons, lower voltages are typically used in control circuits.

Another benefit of using a control transformer is the inherent stability of the voltage supplied from a transformer as well as its ability to handle extreme peaks in demand. When the start button on a motor starter is pushed and the contactor coil energizes, there is a very brief (typically 30 to 50 milliseconds) surge in current demand known as an "inrush current". This peak can exceed 10 times the normal current flow, and transformers handle these peaks far more efficiently than a conventional supply.

Using a control transformer to supply control power thus allows a lower, safer and more efficient control circuit voltage to be used in high working voltage applications. The excellent inrush current handling characteristics of transformer supplied power also makes for a more efficient power supply. Lastly, the use of lower voltages in a control circuit make for far safer use by workers using stop and start buttons in hazardous environments.

LED
LED
LED

LED is one of the control panel accessories that Al Inshrah offers. Light emitting Diode also called LED is a two lead semiconductor light source that resembles a basic pn-junction diode and it emits light. Al Inshrah is committed to providing its customers with outstanding services and the highest quality products in LED lighting. We work to continuously develop new product lines for a variety of applications including homes, landscape, automotive, boating and recreation. We make you save energy and money with the new technology LED bulbs and providing the same light output.

Limit Switch
Limit Switch
Limit Switch

A limit switch is used to limit the activation of an electrical circuit. When a circuit is “closed,” it allows the flow of electrical current through the switch to pass to the device being powered. When the switch is “open,” the switch is disengaged and no electrical power will pass through it. Whether the limit switch is open or closed is generally determined either by the position of a device being powered or by a set amount of time a device requires to complete a specific task.

The most common type of limit switch is a mechanical limit switch. This switch tracks the location of a specific item and opens or closes when that item reaches a specific location. The switch is activated by physical contact, or lack thereof. For example, a light inside a car often turns on when one of the doors is opened.

Another type of limit switch is a centrifugal switch. This switch gauges and is activated strictly by the speed of the item being monitored. While a centrifugal switch can have many purposes, it is widely used as a safety mechanism to shut down a device if it reaches a speed higher or lower than its accepted safety rating. These switches are commonly used in engines and motors.

Limit switches are most commonly used in industrial settings. They are used for everything from controlling a hoist motor to providing pressure control to ensuring worker safety. Switches can be used to start, stop or reverse assembly lines; as sensors to detect a completed activity, such as stopping a robotic arm from stacking materials past a certain height; or as detectors to engage such safety equipment as fire doors in the event of an emergency. Usage examples are endless.

Household environments make use of limit switches as well. A standard garage door opener is a good example. The opener has two limit switches: one to control how long electrical power is supplied to the motor powering the opener, and one to control the travel time of the door as it moves up or down. When the door reaches a certain point the switches open, thus stopping the door from hitting the motor at the top or crashing into the ground at the bottom.

Micro Switch
Micro Switch
Micro Switch

A micro-switch works by detecting the movement of physical objects and indicating it to an electrical circuit. It is normally used to identify objects on conveyor belts, in security alarms, to tell elevators where to stop and to let microwaves know when the door is closed.

The micro switch works by using very physical force through the use of a tipping-point mechanism. The switching happens reliably at specific and repeatable positions of the actuator, which is not necessarily true of other mechanisms. Internally, it has a flat metal spring that must be bent to activate the switch. Inside is a small curved spring.

Panel Fan
Panel Fan
Panel Fan

Panel cooling fan is used to move heated air away from the components and draw cooler air over them.

Panel Heater
Panel Heater
Panel Heater

Panel heaters work by heating a large infrared surface made of stainless steel, ceramic, quartz cloth or high temperature glass, with quartz cloth heaters being the most common type. Because the heating occurs over a larger area than with other types of space heaters, there is less chance of uneven heating. Their constant temperature ensures the outside of the unit does not reach the extreme temperatures experienced with other types of space heaters, thus reducing the chance of being burned with this type of heater over other types.

Push Button
Push Button
Push Button

A push-button is a simple switch mechanism for controlling some aspect of a machine or a process. Buttons are typically made out of hard material, usually plastic or metal.The surface is usually flat or shaped to accommodate the human finger or hand, so as to be easily depressed or pushed. Buttons are most often biased switches, though even many un-biased buttons (due to their physical nature) require a spring to return to their un-pushed state.

Siren
Siren
Siren

Siren is a piece of equipment which produces loud and high pitched warning sound. We offer you the best siren effects at unbeatable prices. Such standard audible warning sounds are not required by many of our clients and in great demand. The most modern sirens nowadays are civil defense or air raid sirens, sirens on emergency service vehicles such as ambulances, police cars , and fire engines. Most fire sirens have a single alarm sound and are mechanically driven by electric motors with a rotor attached to the shaft. There are even electronically driven speakers, though not very common. Electronic sirens incorporate circuits such as oscillators, amplifiers and modulators to synthesize a selected tone.

Step Switches
Step Switches
Step Switches

In electrical controls, a stepping switch or uniselector (UK), also known as a stepping relay, is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections, under the control of a series of electrical pulses.

It can step on one axis (called a uniselector), or on two axes (a Strowger switch). The major use for these devices was in early automatic telephone exchanges (commonly called Strowger or step-by-step exchanges or steppers) to route telephone calls. Later, they were often used in such equipment as industrial control systems.

Thermostat
Thermostat
Thermostat

A thermostat is a component of a control system which senses the temperature of a system so that the system's temperature is maintained near a desired setpoint. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature.

Time Dock
Time Dock
Time Dock

A thermostat is a component of a control system which senses the temperature of a system so that the system's temperature is maintained near a desired setpoint. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature.

Timer On Delay Off Delay
Timer On Delay Off Delay
Timer On Delay Off Delay

TDRs are available as plug-in devices, much like plug-in control relays. However, they are also available in a range of other forms, including base-mounted devices and direct IEC DIN-mounted controls. For instance, a TDR can be fixed on a motor starter. In this application, energizing the motor starter causes the timing function to begin; contacts within the device operate when timing is complete. Electronic, starter-mounted TDRs are also available. Some TDRs have solid-state outputs instead of relay outputs.

Traditionally, TDRs were available only as single-function, single-time-range devices. These devices are still available and are typically used in applications where the timing needs to be locked in. Today, many TDRs are also available with multiple timing ranges and functions. Costing little more than single-function devices, these TDRs also have wide control voltage ranges. In addition, newer multifunction IEC-style timers allow for reduced inventories. Let’s take a closer look at a few of the more common types of TDRs.

On-delay timers

With an on-delay timer, timing begins when voltage is applied. When the time has expired, the contacts close and remain closed until voltage is removed from the coil. If voltage is removed before time-out, the time delay resets

Off-delay timers

When using an off-delay timer, nothing happens when voltage is applied. Closing the control input (SW) causes the contacts to transfer

Opening the control input causes timing to begin, and the contacts remain closed. On time-out, the contacts transfer. Closing the control input prior to time-out causes timing to reset. Removing voltage

Transducer
Transducer
Transducer

A current sensor/current transducer is a device that detects electrical current (AC or DC) in a wire, and generates a signal proportional to it. The generated signal could be analog voltage or current or even digital output. It can be then utilized to display the measured current in an ammeter or can be stored for further analysis in a data acquisition system or can be utilized for control purpose.

Ventilating Devices
Ventilating Devices

Ventilating dev ices evenly distributes clean and fresh air throughout . This helps to maintain air quality and remove moisture from everyday living activities. Ventilation systems help in providing clean and fresh indoor air. There are various benefits related to ventilating devices. These devices clear out dampness and coldness which lead to illness from houses. Such systems wipe out many things which negatively affects our health. A good ventilating system helps in reducing mould and mildew build ups around the living space. The two major ventilating devices are positive pressure ventilation systems and balanced pressure heat recovery ventilation devices.

Voltmeter Selector Switch
Voltmeter Selector Switch
Voltmeter Selector Switch

Voltmeter Selector Switch is connected to the Voltmeter, to measure the Voltages between different phases (also, between each phase and neutral, if needed) with a single voltmeter.

Warning Light
Warning Light
Warning Light

Al Inshrah supplies high quality warning lights at competitive prices. It is a cautionary sign of danger that are visually communicated. Warning lights are normally lights which denotes caution. Al Inshrah sells different types of warning lights for different industries and for different purposes. Warning lights or flashing lights displayed can be blue, green, red, magenta, yellow etc. each conveys different messages and specific warnings.

Relay
Relay
Relay

A relay is an electromagnetic switch. In other words it is activated when a current is applied to it. Normally a relay is used in a circuit as a type of switch (as you will see below). There are different types of relays and they operate at different voltages. When you build your circuit you need to consider the voltage that will trigger it.

The main part of a relay is the coil at the center. A small current flowing through the coil in the relay creates a magnetic field that pulls one switch contact against or away from another. Putting it simply, when current is applied to the contacts at one side of the relay the coil allows the contacts at the other side to work. Usually relays are used to turn on a second circuit. The first circuit activates the relay which then ‘turns on’ the second circuit.

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Dimmerstat / Variac / Auto Transformer
Dimmerstat
Dimmerstat
Dimmerstat

Dimmerstat / Variac / Auto Transformer

Dimmerstat is an auto transformer which is generally connected to supply which provide us step up /step down output depending on the terminal to which input is connected. Normally there are two ways to operate a Dimmer stat:-

1. The output voltage can be varied from 0 to full supply voltage.

2. Voltage from 0 to 12 % higher than supply voltage

An Autotransformer/auto step down transformer is an electrical transformer with only one winding, In an autotransformer, portions of the same winding act as both the primary and secondary sides of the transformer.The winding has at least three taps where electrical connections are made. Autotransformers have the advantages of often being smaller, lighter, and cheaper than typical dual-winding transformers, but the disadvantage of not providing electrical isolation. Other advantages of autotransformers include lower leakage reactance, lower losses, lower excitation current, and increased KVA rating

Variable autotransformers

As with two-winding transformers, autotransformers may be equipped with many taps and automatic switchgear to allow them to act as automatic voltage regulators, to maintain a steady voltage at the customers' service during a wide range of load conditions. They can also be used to simulate low line conditions for testing. Another application is a lighting dimmer that doesn't produce the EMI typical of most thyristor dimmers.

By exposing part of the winding coils and making the secondary connection through a sliding brush, a continuously variable turn’s ratio can be obtained, allowing for very smooth control of voltage. Applicable only for relatively low voltage designs, this device is known as a variable AC transformer (often referred to by the trademark name Variac). The output voltage is not limited to the discrete voltages represented by actual number of turns. The voltage can be smoothly varied between turns as the brush has a relatively high resistance (compared with a metal contact) and the actual output voltage is a function of the relative area of brush in contact with adjacent windings. The relatively high resistance of the brush also prevents it from acting as a short circuited turn when it contacts two adjacent turns. Typically the primary connection connects to only a part of the winding allowing the output voltage to be varied smoothly from zero to above the input voltage and thus allowing the device to be used for testing electrical equipment at the limits of its specified voltage range.

"Variac" and "Dimmerstat" are trade names of variable autotransformers. Hence, they are the same.