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Pushbutton Switches

The ABD202NUW Pushbutton Switch comes in two main types—momentary and alternate action—each with its own distinct application field and working principle. Momentary switches work by completing a circuit for a certain period of time when the switch is engaged. Alternate action switches allow for the same results with a different working principle useful for different application fields. Different materials are used for casing, such as thermoplastic, as well as different contact ratings.

Momentary

The ABD202NUW Momentary Pushbutton Switch is designed for when a temporary action is desired. Once the switch is pressed and the circuit completed, no further action is necessary to maintain the circuit in the closed state. The switch will return to its normal open state when it is released. Momentary switches are often found in applications in which there is a need to reset the system quickly, or when more than one state is desired, such as in a game pad. This type of switch is typically made of plastic and fitted with silver-plated contacts and a plunger, and is rated for up to 250 volts at 4 amps.

Alternate Action

Alternate action switches are characterized by having two distinct states: the open or off state and the closed or on state. The ABD202NUW Alternate Action Pushbutton Switch can provide the same electrical current, voltage and power ratings as the momentary type, however, the user will need to complete an action in order for the circuit to remain closed. This can be achieved by pressing and holding the switch in the closed position, or by flipping a lever or toggle in either the open or closed position until the desired state is reached. This type of switch is often used in banking and financial settings, as well as in manufacturing and industrial environments where a dependable on/off system is needed.

Materials and Contact Ratings

The ABD202NUW Pushbutton Switch is typically made of a thermoplastic material, which is designed to provide a high level of durability and resistance to shock, chemicals and extreme temperatures. The contacts are typically coated with a silver plating which helps to prevent corrosion. The switch is rated for up to 250 volts and 4 amp current, which makes it suitable for use in a wide range of applications. It is also RoHS compliant, meaning that it meets the highest standards of safety and environmental friendliness.

The ABD202NUW Pushbutton Switch is a useful tool in many industrial and manufacturing applications. With its two distinct types of switches, alternate and momentary, as well as its thermoplastic body, silver plated contacts, and 250 V and 4 amp current rating, this switch is sure to meet the needs of many users.

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