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Siemens 3SB1201-1AC01 22mm Mushroom Pushbutton Unit

Siemens 3SB1201-1AC01 22mm maintained mushroom pushbutton unit.

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ManufacturerSiemens

Part number3SB1201-1AC01

Actuator Type Mushroom Pushbutton (40mm)

Contact Configuration 1 NO + 1 NC

Actuator Color Red

Backing Plate Color Yellow

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12-month warranty

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Same-day dispatch

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

40mm mushroom-shaped actuator Maintained contact operation 1 NO + 1 NC contacts Yellow backing plate Red actuator 22mm standard mounting

Product description

The Siemens 3SB1201-1AC01 is a complete 22mm pushbutton unit featuring a 40mm mushroom-shaped pushbutton. This maintained-contact type unit includes one Normally Open (NO) and one Normally Closed (NC) contact, with a yellow backing plate and a red actuator. It is designed with a molded-plastic front ring for durability.

This unit is well-suited for applications requiring a maintained push-to-open or push-to-close function, such as emergency stops, safety interlocks, or machine control operations in manufacturing, automation, and processing industries.

As a veteran-owned surplus parts distributor, Stanlo Automation provides the Siemens 3SB1201-1AC01, ensuring reliable and readily available components for your critical automation systems.

Technical specifications

Actuator Type	Mushroom Pushbutton (40mm)
Contact Configuration	1 NO + 1 NC
Actuator Color	Red
Backing Plate Color	Yellow
Mounting Size	22mm
Contact Type	Maintained

Common applications

Emergency Stops

Safety Interlocks

Machine Control

Process Control

Automation Panels

Industrial Safety

Compatible systems

Siemens 22mm control system components

Also known as

Siemens 3SB1201-1AC01 Mushroom Button

Replaces / compatible with

Compatible with Siemens 3SB12 series accessories.

Technical note

Expert tip

The maintained contact function requires a second actuation to reset the button to its original state.

What happens next?

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Frequently asked questions

What is the contact configuration and operation type of the Siemens 3SB1201-1AC01?

The Siemens 3SB1201-1AC01 features one Normally Open (NO) and one Normally Closed (NC) contact. It operates as a maintained-contact type, meaning the button stays in its pressed position until actuated again.