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Siemens 3SB3203-1HA20 22mm Emergency Stop Pushbutton, Red

Siemens 3SB3203-1HA20 22mm round emergency stop pushbutton with twist-to-unlatch.

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ManufacturerSiemens
Part number3SB3203-1HA20
Size 22mm
Actuator Type Emergency Stop Mushroom Pushbutton 40mm
Operation Latching, Twist-to-Unlatch
Contact Configuration 1NC
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12-month warranty
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Veteran-owned
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22mm mounting 40mm mushroom head Twist-to-unlatch mechanism 1NC contact Screw terminals Yellow backing plate

The Siemens 3SB3203-1HA20 is a 22mm plastic round complete unit combination emergency stop pushbutton. It features a 40mm mushroom head that latches and requires a twist to unlatch. This unit includes a yellow backing plate, screw terminals, and a single Normally Closed (1NC) contact. The inscription reads "NOT-HALT".

This pushbutton is designed for safety applications where immediate machine shutdown is required. It is suitable for use in various industrial environments and control panels, particularly where a clear and accessible emergency stop is crucial for operator safety and equipment protection.

Stanlo Automation, a veteran-owned business, offers this phased-out Siemens part. While a successor product exists (SIRIUS ACT 3SU1), Stanlo provides reliable access to this specific component, ensuring operational continuity for systems still utilizing it. Source your industrial automation needs from a trusted supplier.

Size22mm
Actuator TypeEmergency Stop Mushroom Pushbutton 40mm
OperationLatching, Twist-to-Unlatch
Contact Configuration1NC
Terminal TypeScrew Terminal
ColorRed
SeriesSIRIUS 3SB3
Machine Safety
Control Panels
Industrial Automation
Emergency Stop Circuits
Manufacturing Equipment
Process Control
Control panels Industrial machinery Safety circuits
Siemens 3SB3 Pushbutton 22mm Emergency Stop Mushroom Head Pushbutton 3SB3 Series
This part is a phased-out Siemens product. The preferred successor is SIRIUS ACT 3SU1, specifically type 3SU1100-1HB20-1CH0.
Expert tip
This unit utilizes screw terminals for secure electrical connections. Ensure proper torque is applied during installation to prevent loose connections.
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What is the contact rating for the Siemens 3SB3203-1HA20 pushbutton?
The Siemens 3SB3203-1HA20 features a 1NC (Normally Closed) contact. While exact current and voltage ratings depend on the specific application and safety standards, this type of contact is typically used for safety interlocks and emergency stop circuits.