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Siemens 3SB3203-1CA21 40mm Push-Pull Button Red

Siemens 3SB3203-1CA21 40mm red push-pull button, pull-to-unlock, 1 NC.

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ManufacturerSiemens
Part number3SB3203-1CA21
Actuator Type Push-Pull Button
Button Shape 40mm Round
Bezel Diameter 22 mm
Color Red
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40mm red push-pull actuator Latching operation with pull-to-unlock 1 normally closed (NC) contact 22mm mounting size Screw terminals Plastic construction

The Siemens 3SB3203-1CA21 is a 22mm plastic round complete unit featuring a 40mm red push-pull button. It offers a latching function with a pull-to-unlock mechanism, requiring a specific action to reset. This unit includes one normally closed (NC) contact, connected via screw terminals, and comes with a holder. This is a phased-out product, with the SIRIUS ACT 3SU1 series as its successor.

This push-pull button is designed for control applications where a distinct visual and physical action is needed to change states, typically for start/stop or on/off functions that require confirmation. The 40mm size ensures high visibility and ease of operation, especially in demanding industrial environments. Applications include machine control and safety systems.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, provides access to components like the Siemens 3SB3203-1CA21. We are dedicated to offering reliable surplus inventory to ensure your automation systems remain functional and efficient.

Actuator TypePush-Pull Button
Button Shape40mm Round
Bezel Diameter22 mm
ColorRed
FunctionLatching, Pull-to-Unlock
Contact Configuration1 NC
Termination TypeScrew Terminal
MaterialPlastic
Series3SB3
Machine Control
Industrial Automation
Control Panels
Safety Systems
Operator Interfaces
Factory Automation
Designed for Siemens 3SB3 control circuits and panel mounting.
Siemens 40mm Push Pull 3SB3 Red Push Pull Button Latching Control Button
This part is phased out and succeeded by the SIRIUS ACT 3SU1 series. The preferred successor type is 3SU1100-1BA20-1CA0.
Expert tip
The distinct push-and-pull action of the 3SB3203-1CA21 provides a clear tactile confirmation of state changes, reducing operational errors.
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How is the Siemens 3SB3203-1CA21 push-pull button reset?
The Siemens 3SB3203-1CA21 features a pull-to-unlock mechanism. To reset the button after it has been activated (pushed in), it must be pulled outwards.