21EN90-R1

Snap action limit switches are designed for use in applications with potential hazardous conditions and limited space. These limit switches are typically installed in areas with high temperatures, vibration, pressure, and humidity. The 21EN90-R1 is a snap action limit switch that is specifically designed for such applications. This section will provide an overview of the 21EN90-R1 application field and working principle.

What is a Snap Action Limit Switch?

A snap action limit switch is a type of switch that uses mechanical motion to change its state between two positions. They use a plunger, lever, or roller which is actuated when a certain limit is reached. When this limit is exceeded, the device will change its state to indicate that the predetermined limit has been exceeded.

21EN90-R1 Application Field

The 21EN90-R1 is a snap action limit switch designed for use in hazardous conditions including high temperature, vibration, and pressure. It is designed to be used in environments where space is limited. The 21EN90-R1 is capable of withstanding temperatures up to 60°C and pressure up to 10MPa. Additionally, it can be used in locations where exposure to salt spray, dust, and oils are present.

21EN90-R1 Working Principle

The 21EN90-R1 snap action limit switch is actuated by a actuator. The actuator is a plunger that is connected to the base of the switch. When pressure is applied to the plunger, the switch is actuated. This actuation causes an electrical contact to be made between the two contacts in the switch. When the limit is reached, the contact is broken, causing the switch to toggle its position.

Conclusion

The 21EN90-R1 snap action limit switch is designed for use in hazardous and limited space applications. It is designed to withstand high temperature, vibration, and pressure. Additionally, it is capable of withstanding exposure to salt spray, dust, and oils. The 21EN90-R1 operates using a plunger connected to the base of the switch. When pressure is applied to the plunger, the switch is actuated. When the limit is reached, the contact is broken, causing the switch to toggle its position.