Rocker Switch: Benefits, Types, and Uses

Alt text – Rocker switch: benefits, types, and uses

Power connectivity is integral to the operation of all the devices you intend to use. But first, you need to ensure safety precautions, and one of the ways of guaranteeing the precaution is by using the right switch for sockets, extension cords, and other power connectivity devices. Due to technological advancements, switches are becoming more reliable, and new models guarantee additional safety than traditional models.

Rocker switches are one of the most common to replace traditional options or boost your experience powering your devices. Despite being in the market for a while, it is one of the most preferred and efficient switches. The preference is due to its performance capabilities and power to connect and control the functionality of different machines. Here are some more details about the switch.

Alt text – electrical cord, nema 5-15r

What is a rocker switch?

Conventionally, it is an on-and-off switch used for electronic devices; however, the capabilities are a bit more extensive than other traditional sockets. It can have multiple variations based on different on and off configurations and operations. The name rocker switch comes from the behavior when turned on and off. When you switch the button, it produces a rocking motion to indicate circuit completion or breaking. It has a seesaw mechanism that lets you switch it on either side to power on and off your device.

Rocker Switches Pole and Throw Configurations

Poles are the number of separate circuits a switch can complete when switched on. It becomes a single pole rocker switch when it delivers power to one circuit. It delivers to multiple circuits; it is a double-pole switch. To be a double pole switch, it must support the circuits independently or operate together.

Throws are the number of ON positions the switch moves between to close the circuit or the power. A single-throw switch is an on-and-off rocker controlling the circuit. If it has two on positions, then it automatically becomes a double-throw switch. The rocker switches have a different pole and throw mechanisms and configurations. Based on this configuration, one can divide them into the following configurations:

SPST rocker switches: These switches can break or complete the connection of a single conductor in a single branch. They have two terminals and are commonly referred to as single-pole switches.

SPDT rocker switches: These switches can complete or break the connectivity of two other single conductors. They are unique because they have three terminals and are used in pairs. You can also call them three-way switches due to their multiple capabilities.

DPST rocker switches: The switches can complete or break the connection between two circuit conductors in a single branch circuit. They have four terminals.

DPDT rocker switches: Complete or break the connection of two conductors to two separate circuits. They usually have six terminals and are specific only to momentary and maintained contact rocker switches.

Alt text – spt-1 vs spt-2, 12 gauge extension cord

Types of Rocker Switches

There are different types of rocker switches, and they are classified based on aspects such as switching options, uses, functionality, etc. The most common options and variations you will likely get in the market include the following:

1. ON-OFF Switches

These switches allow you to choose the on and off positions for power transmission. It is also one of the most purchased switches since it can be used for many activities needing power transmission, unlike the on-on version, which has limited and specific uses.

The main uses are usually for industrial purposes where the power transmission must be on for long durations. The on and off switches are mainly common in heavy-duty extension cords used for high power voltage or multiple conceptions to machines. Typically, the switch is located at a point on the extension cord and serves all the power outlets.

2. Illuminated

The name comes from seeing whether electricity is transmitted to specific positions within the circuit. They have an in-built LED as a safety measure to enable you to keep the switch on and off to avoid electrical accidents. The LED indication makes it an ideal switch in extension cords. The main applications include light switches, power control dashboards, appliance breakers, and instrument panels.

Alt text – 20 amp extension cord, 20 amp power strip

3. Momentary

The momentary switch is generally more rigid than other traditional and standard switches. When you switch it, it returns to its default position when not pressed. They have incorporated springs to maintain the position stability; however, they are vulnerable, especially when switched on randomly and too many times, forcing the spring to leave its original position. The most common applications include keypad systems, window systems, and electric doors.

4. Change-over Switches

Also known as a transfer switch, this switch is suitable for switching voltage from one electronic system to another. You can use them to switch from one power input to another, i.e., from the grid to solar or generator power. You can get the manual or the automatic model, and once switched on, they only allow one power source to operate until you decide to change.

5. Inline Rocker Switch

These switches are independent, and you can attach them to power cords, hence the everyday use at home to power less-energy-intensive devices. An inline rocker switch will be suitable for a home since it has safety features to prevent electrical accidents caused by faulty sockets and installations.

Alt text – 220 extension cord, tv power cord

6. Center-off Switches

Commonly referred to as on-off-on switches, the switch enables you to maintain two positions at each side of the seesawing mechanism. This means you can have on-and-on operations on and off depending on what you need to do on either side.

Other options for special needs include a sealed miniature switch, which is different because it comes with a cover, and the critical metallic and electrical components are already sealed. When you go to the store to get either of them, you need to be cautious since each switch is available in different variations and types. Alternatively, you can seek guidance to find the right kind.

Guide to Buying Rocker Switches Accessories

The first consideration when buying any rocker switches is to get the right switch and its variation suitable for your needs. Secondly, you need to focus on the accessories you need for your switches. Due to the increased electrical risks, you cannot use them bare, especially the unsealed ones. Here are some accessories you need to include in your shopping cart.

1. Actuator Tool

The tool helps insert, fix and remove the switches from the position. With the tool, you do not have to replace the entire unit; you can only replace the switch. Different actuator tools use mechanisms to help you fix and remove the switch.

2. Rocker Switch Blanking Plug

It is commonly referred to as a dummy cover or a switch cap. You can use it to cover the switch, replace a broken one, or as a cut-out gap. It is ideal for covering switches in humid areas to prevent water infiltration into the switch, causing a power surge and electrical shocks. They also prevent the entry of dirt and dust into the switch.

It can also be used for specific areas such as home switches for electrical, especially in the garage, outdoors, or in dusty and dumpy areas. You can also use it for home devices in stagnated positions, such as refrigerators, washing machines, etc.

3. Rocker Switch Bezel

Once you install the switch, you should ensure the surrounding areas are covered and sealed tight to prevent the entry of debris and other unwanted objects. They can also protect the wiring behind the switch to prevent sudden cuts due to environmental conditions. It is a safety measure to protect kids from inserting objects in the socket.

They are available in different shapes, colors, and sizes to ensure a neat installation and a cleaner finish. You can also select the plastic, melamine, and sometimes the rubber version, which will likely last longer than other choices.

4. Rocker Switch Connector

Alt text – 10 gauge extension cord, electric cord

This tool is integral to the switch assembly and arrangement of wires and all connectivity behind the switch. It's an intermediary link between the main circuit wiring and the switches assembly. It is arranged in two main sides: the incoming and outgoing. The incoming side allows connectivity of the incoming wires to the switch connectivity terminals.

It can be used for single or multiple switches based on your needs, such as dashboard connectivity. In case of repairs, you can easily trace the cables and the power sources due to the cable arrangement. There are different configurations based on connectivity needs, types of switches, and the number of switches you wish to link via the connector.

Others have inbuilt LEDs to inform you about connectivity and power transmission. These are commonly used in power strips for easy visibility during power transmission. Common types include standard push-in, plug-in, or snap-in. They can also help to prevent dust and dirt accumulation inside the switch.

5. Rocker Switch Boots

This is another protective cover, usually installed on the actuator, to prevent debris and moisture entry into the switch. Depending on the environment, you can select the plastic or rubber version. They are mainly suitable for industrial areas where the switch can quickly come into contact with debris. When selecting them, consider the IP rating, i.e., a good one should have IP ratings of IP65 and IP68.

6. Mounting Guard

This panel houses the switch assembly mechanisms and all the internal wirings. You first install it on the wall before you insert and switch and screw it into position. The dimension tends to be standard; hence you need to be cautious about the hole size you drill on the wall. They ensure the wires are fixed in certain positions to prevent bends and cuts that may lead to cuts.

Other factors to consider are compliance and regulatory standards. All electrical gadgets must have a safety and protection rating of NEMA 5 20R to avoid random accidents or potential environmental dangers. The compliance levels and ratings also boost safety when installing the switches or future replacements.

Advantages of Rocker Switches

1. Variety of Switches

Different options to select from: Other rocker switches are based on your needs and operations. They are ideal for different duties and roles hence meeting all your needs. During the selection process, your choice should be based on the exact connectivity needed to avoid using the wrong one for other conditions.

2. Safety Standards

They have various safety capabilities and mechanisms, making them ideal for power cords and protecting homes and residents from electrical accidents. For instance, an extension with a switch will enable you to turn off the power connectivity fast, preventing subsequent effects on connected electronics. Features such as switch proximity, LED indication, and change-over systems guarantee security even during sudden power loss and surges.

3. Wide Range of Accessories

The manufacturers make different accessories to be used with these switches; hence you can select the most ideal and all the essential connectivity accessories. These accessories ease future processes such as maintenance, enabling you to replace the switches easily.

Applications and Uses

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Rocker switches have a wide range of applications in industrial and home settings. Industrial uses include the use in factories and plant processing to switch between different power sources and prevent power outages in case of grid issues. The switch enables the factory to switch to the second power alternative, such as a diesel power generator. They can also power heavy-duty systems and machines such as home HVAC, hydraulic, and medical procedures.

They can also be used for making devices for outdoor activities, such as heavy-duty extensions used to power lawn operations such as road repairs, welding, and other needs. The most important uses are in homes and small-scale operations, ensuring a stable power supply to all home components. Inline switches can be used in cords to power all home appliances and devices. They are used for electrical outlets, surge protectors, and extension cords that distribute power to all electronics.

Conclusion

Selecting a good rocker switch should be easy if you understand the accessories, configuration, and home needs. They are available for small to large-scale uses, making them one of the most purchased switches. You also need to inspect for safety features and any additional safety accessories for the switches.