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Siemens 3SU1150-1BA20-1FA0 22mm Red Mushroom Latching Pushbutton

Siemens 3SU1150-1BA20-1FA0 22mm red mushroom latching pushbutton, 1NO+1NC.

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ManufacturerSiemens

Part number3SU1150-1BA20-1FA0

Actuator Type Mushroom Pushbutton

Shape Round

Diameter 22 mm

Material Metal

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12-month warranty

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Veteran-owned

CAGE: 9NK75

22mm standard mounting 40mm large mushroom head Latching operation with pull-to-unlatch 1 NO + 1 NC contacts Metal construction for durability Shiny red finish

Product description

The Siemens 3SU1150-1BA20-1FA0 is a 22mm round, metal mushroom pushbutton actuator finished in shiny red with a 40mm diameter head. It features a latching mechanism that requires a pull to release. This configuration provides 1 Normally Open (NO) and 1 Normally Closed (NC) contact, utilizing screw terminals for secure electrical connections.

This latching mushroom pushbutton is suitable for applications where a maintained state is needed after activation, such as machine start/stop controls or process interlocks. The large 40mm head is easy to operate, and the latching function ensures the state remains until manually reset.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3SU1150-1BA20-1FA0 to meet your industrial automation needs. We provide reliable surplus components with efficient service, ensuring you get the parts you need to keep your machinery running.

Technical specifications

Actuator Type	Mushroom Pushbutton
Shape	Round
Diameter	22 mm
Material	Metal
Finish	Shiny
Color	Red
Head Diameter	40 mm
Contact Type	Latching
Release Mechanism	Pull-to-unlatch
Number of Contacts	1 NO + 1 NC
Terminal Type	Screw Terminal
Series	SIRIUS 3SU1

Common applications

Machine start/stop controls

Industrial control panels

HMI interfaces

Safety interlocks

Operator stations

Process automation

Compatible systems

Compatible with Siemens SIRIUS 3SU1 series mounting bases and accessories.

Also known as

Siemens Red Latching Mushroom 3SU1150 Red 40mm Button Metal mushroom pushbutton 1NO 1NC Pull-to-unlatch actuator

Replaces / compatible with

This part is a standard component and typically replaces older versions or similar 22mm latching mushroom pushbuttons from Siemens or other manufacturers. Always verify specifications for direct replacement suitability.

Technical note

Expert tip

The latching function simplifies control logic by maintaining its state after actuation, reducing the need for external holding circuits in many applications.

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Frequently asked questions

What is the purpose of the 1 NO and 1 NC contact configuration on the Siemens 3SU1150-1BA20-1FA0?

The 1 NO + 1 NC contact configuration offers flexibility in control circuit design, allowing for both immediate and delayed switching actions upon actuation. This latching mushroom pushbutton features a 40mm head and pull-to-unlatch mechanism.