Siemens
Siemens 3SB3921-0AK Protective Collar for Mush. Pushbutton
Siemens 3SB3921-0AK protective collar for 22mm round mushroom pushbuttons.
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12-month warranty
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Same-day dispatch
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Worldwide delivery
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Veteran-owned
CAGE: 9NK75
Protective collar
For mushroom pushbuttons
22mm round program
Front plate mounting
Accessory for Siemens 3SB3
Product description
The Siemens 3SB3921-0AK is a protective collar designed for mushroom pushbuttons within the 22mm round plastic and metal program. It provides protection for the pushbutton when mounted on the front plate.
This accessory is typically used in control panels and industrial machinery where robust and reliable operator interfaces are required. It ensures the longevity and functionality of the pushbutton in demanding environments.
As a veteran-owned surplus parts distributor, Stanlo Automation offers this Siemens 3SB3921-0AK with the assurance of quality and availability. Source your industrial automation components from a trusted partner.
Technical specifications
| Type | Protective Collar |
| For | Mushroom Pushbutton |
| Diameter | 22mm |
| Material Compatibility | Plastic/Metal Program |
Common applications
Control Panels
Industrial Machinery
Automation Systems
Machine Building
Operator Interfaces
Compatible systems
Siemens 3SB3 Series Pushbuttons
Also known as
Siemens 3SB3921-0AK accessory
3SB3 accessory
Replaces / compatible with
This part is a phased-out product. The SIRIUS ACT 3SU1 is the successor, with 3SU1900-0DY30-0AA0 being the preferred successor type.
Technical note
Expert tip
Ensure proper sealing and mounting to maintain NEMA or IP ratings when used with compatible enclosures.What happens next?
1
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2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What is the Siemens 3SB3921-0AK used for?
The Siemens 3SB3921-0AK is an accessory used as a protective collar for mushroom pushbuttons in 22mm round plastic and metal control systems. It is designed for front plate mounting to safeguard the pushbutton.