Siemens
Siemens 3SB1201-1AC20 Red 40mm Mushroom Pushbutton
Siemens 22mm maintained mushroom pushbutton, 40mm head, red/yellow.
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12-Mo Warranty
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🎖 Veteran-Owned
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Response within 1 business hour
12-month warranty
All units tested
Same-day dispatch
Order by 2pm CST
Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
40mm maintained mushroom operator
1 NO + 1 NC contacts
Metal front ring
22mm mounting size
High visibility
Emergency stop function
Product description
The Siemens 3SB1201-1AC20 is a complete 22mm mushroom pushbutton unit. It features a 40mm mushroom-shaped operator, maintained contact type, and includes one normally open (NO) and one normally closed (NC) contact. The unit is yellow and red with a metal front ring.
This pushbutton is ideal for emergency stop functions or other critical control applications where a visible and easily accessible actuator is required. It is commonly used in control panels for machinery and industrial equipment.
Stanlo Automation offers the Siemens 3SB1201-1AC20, providing reliable surplus industrial parts from a veteran-owned business. Get the components you need for your automation systems.
Technical specifications
| Type | Mushroom Pushbutton |
| Size | 22mm |
| Operator Size | 40mm |
| Contact Type | Maintained |
| Contacts | 1 NO + 1 NC |
| Color | Red/Yellow |
| Front Ring | Metal |
Common applications
Control Panels
Machine Safety
Emergency Stops
Industrial Machinery
Automation Systems
Plant Operations
Compatible systems
Siemens 3SB control stations
22mm control panel cutouts
Also known as
Siemens Mushroom Push Button
3SB1201-1AC20 E-Stop
Siemens 22mm Pushbutton
Replaces / compatible with
Compatible with Siemens 3SB series control components.
Technical note
Expert tip
Requires a suitable 22mm mounting hole and a Siemens 3SB series contact block for installation.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What type of contacts does the Siemens 3SB1201-1AC20 have?
The Siemens 3SB1201-1AC20 is equipped with one normally open (NO) and one normally closed (NC) contact. It features a maintained contact type, meaning the button stays in its pressed position until manually reset.