Electrical switches are a critical component in controlling devices by establishing a flow of current in a circuit system. Be it a simple light switch or a complex high-end device, the right kind of switch is essential. Selector switches come into play when two or more electrical circuits come into play. This knob or lever apparatus allows operators to manage complex systems with ease. This article covers selector switches, types, functions & operations and beyond.
Although technology has evolved over the years, switches have remained the key components to controlling electrical devices. From as simple as turning on a light to managing a complex security system in an industry, selector switches allow operators to manage the entire system with a knob or lever connected to the output. Let us take a closer look to understand more about selector switches:
What is a Selector Switch?
Selector switches control device functions and can be switched between two or more circuits. The selector switch is a type of electrical switch that can be used in multiple applications, such as industrial, instrumental and electrical systems. It is a knob or level-like system that can be rotated left, right, or centre to switch between circuits. This function either opens or closes the electrical contact. For instance, if you wish to switch between different audio input sources or switch between motor controls i.e. manual, automatic.
Types of Selector Switches
Selector switches vary in materials used to make them, the actual type of switch used and its configurations. Often broadly classified by their actuation method. Let’s understand the types of selector switches.
Rotatory Selector Switch
This is the most common type of selector switch used. A knob is used to select the function or setting of the set-up. Ideally, it is used in control panels and electrical boards. If you’re new to control setups, our blog Panel Meters – An Overview offers a simple breakdown of how these systems work together.
Key Lock Selector Switch
Ideally used from a safety standpoint, this selector switch requires a key to function. Once the key is inserted, it can be safely used to switch the setting on or off.
Digital Selector Switch
A digital selector switch does not have a physical knob or lever in place. Instead, a digital system or a button can be used to operate the selector switch. More commonly seen in new age machines and devices.
Ammeter selector switch & Voltage selector switch.
Looking to switch between different current and voltage readings of your device? An ammeter selector switch can be used to check the current in different parts of a panel; the voltmeter is principally used to identify the same voltage across the system. To understand these measuring instruments better, explore our detailed guides on Ammeter – A Complete Guide! and Voltmeter – A Complete Guide!.
Selector Switch Function and Operation
The function of selector switch is to toggle between different functions within the same electrical system or device. Typically, the rotating knob is turned in the desired direction depending on the function it serves. For example, it can activate a circuit, switch it off or switch the circuit. The aim is to ensure only one desired circuit functions at any given time.
Selector switches are often used alongside measuring instruments like ammeters, voltmeters, and panel meters.
Within a circuit, the contact points are often made of conducting metals such as silver and copper, among others. When the switch is turned to a position, the circuit conducts electricity. When turned off, the said circuit’s current flow is interrupted, thus halting its function.
Depending on the type of device, the selector switch is identified. For instance, some selector switches might just have one input and output. Others may have multiple options depending on the switch position.
Applications of Selector Switches
Selector switch uses can be found in a range of electrical and mechanical devices across industries. These industries include:
- Automotive: Many commercial vehicles use selector switches to control different functions. These switches include engine control, lights, etc.
- Public Spaces: Selector switches can be used in buildings and public places for lights, HVAC, security, etc. These can be used in community buildings or residential buildings for the same.
- Industrial Control Systems: Industrial control systems demand safety, complex functioning and control, making selector switch an ideal preference.
- Medical Equipment: Medical equipment demands critical control in operations. Selector switches are, therefore, commonly used in heavy-duty medical equipment.
Industrial Use and Benefits
The primary use of selector switches includes simplifying and easing the use of complex electrical systems. It is often used in industries that demand heavy machines, high voltage and security. Let’s explore the prominent benefits of using a selector switch :
Benefits:
- Space saving: One switch can handle multiple functions.
- Cost effective: Less demand for multiple switches, improved cost efficacy
- Easy to use: Simple operation procedure that can be handled by operators
- Durable: Most switches are built to last in tough conditions.
- Safe: Options like the key lock selector switch add an extra layer of safety.
Industries like manufacturing, automotive, chemical processing, and energy sectors rely on selector switches for efficient control and safety.
Conclusion
Selector switches are game changers for multiple industries that rely on electrical components. Selector switches are incredibly valuable components from basic residential usage to high-end industrial automation. Everything from a volt selector switch in stabilisers to a digital selector switch in the smart panel, these switches bring ease and control in every aspect.
Beemet offers a range of high quality selector switches in India. As the leading manufacturer of Voltmeter and Ammeter Selector Switches, we offer high grade engineering material switches that meet international regulatory standards. Get in touch with Beemet to know more about their selector switches.
FAQs:
Q1. What is a selector switch used for?
A selector switch is used to choose between different electrical circuits. A knob is turned left, right or centre to either activate or switch between electrical circuits.
Q2. How does an ammeter selector switch work?
An ammeter selector switch helps measure current in different lines by switching between them. It eliminates the need for multiple ammeters in order to function smoothly.
Q3. What is the symbol of a selector switch?
The selector switch symbol typically shows a rotating handle with positions marked around it. In diagrams, it’s shown as a circle with connecting lines to represent the switch paths.
Q4. Can selector switches be digital?
Yes, a digital selector switch uses buttons or digital input instead of a rotating knob. These are used in modern machines and control panels.
