Siemens 3SB22031AC01 Complete Unit Emergency Stop Mushroom Pushbutton, 16 mm Mounting, Red, 1NO+1NC

With a 30 mm red mushroom actuator and a 16 mm mounting diameter, this complete emergency stop unit delivers a rated insulation voltage of 320 V and an electrical life of 100,000 switching cycles.

Overview

The Siemens 3SB22031AC01 is a complete emergency stop pushbutton from the 3SB2 series. It features a red mushroom actuator with a twist-to-unlatch latching mechanism, ensuring a deliberate reset action. The unit is equipped with one normally open (NO) and one normally closed (NC) contact, connected via screw terminals.

What stands out

• 30 mm mushroom actuator for easy activation in emergency situations
• Twist-to-unlatch mechanism prevents accidental reset
• Front protection rating IP65 for use in demanding environments
• Wide operating temperature range from -25 to +70 °C
• High mechanical life of 300,000 switching cycles

Technical details

• Product type: Emergency stop pushbutton
• Series: 3SB2
• Actuator type: Mushroom pushbutton
• Actuator colour: Red
• Actuator diameter: 30 mm
• Mounting diameter: 16 mm
• Latching mechanism: Twist to unlatch
• Contact configuration: 1 NO + 1 NC
• Number of contact blocks: 1
• Connection type: Screw terminals
• Degree of protection (front): IP65
• Degree of protection (terminals): IP20
• Operating temperature range: -25 to +70 °C
• Rated insulation voltage (Ui): 320 V
• Rated impulse withstand voltage (Uimp): 4 kV
• Electrical life: 100,000 switching cycles
• Mechanical life: 300,000 switching cycles
• Housing material: Plastic
• Compliance: IEC 60947-5-1, EN 60947-5-1
• Unit type: Complete unit

Our verdict

A robust and reliable emergency stop solution for industrial control panels, offering high electrical ratings and a durable design.