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Siemens 3SB3500-1FA20 22MM Metal Emergency Stop Button

Siemens 3SB3500-1FA20 22mm red metal emergency stop button.

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ManufacturerSiemens

Part number3SB3500-1FA20

Size 22mm

Actuator Type Emergency Stop Mushroom Pushbutton

Button Size 32mm

Function Latching

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12-month warranty

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Veteran-owned

CAGE: 9NK75

22mm metal round emergency stop actuator 32mm mushroom button Latching with rotate-to-unlatch release Red color for high visibility Designed for safety applications

Product description

The Siemens 3SB3500-1FA20 is a 22mm metal round actuator designed as an emergency stop mushroom pushbutton. It features a 32mm button size and a latching mechanism with a rotate-to-unlatch release. This red actuator is crucial for safety applications in industrial settings. It's a phased-out product, with SIRIUS ACT 3SU1 as its successor, and the preferred replacement type being 3SU1050-1GB20-0AA0 + 3SU1550-0AA10-0AA0.

This emergency stop button is engineered for immediate and reliable operation in hazardous situations. Its robust metal construction ensures durability in harsh environments, making it suitable for use in manufacturing plants, machinery, and any application where rapid safety shutdown is required.

Stanlo Automation, a veteran-owned surplus distributor, provides this essential safety component, offering a cost-effective solution for maintaining critical safety systems. Trust us to supply reliable automation parts to ensure operational safety and continuity.

Technical specifications

Size	22mm
Actuator Type	Emergency Stop Mushroom Pushbutton
Button Size	32mm
Function	Latching
Release	Rotate-to-Unlatch
Color	Red
Material	Metal
Series	3SB3

Common applications

Emergency Stops

Machine Safety

Industrial Control Panels

Manufacturing Equipment

Safety Shutoff

Process Control

Compatible systems

Control panels Machine interfaces Industrial safety systems

Also known as

Siemens 3SB3500-1FA20 E-stop 22mm mushroom E-stop Rotate-to-unlatch emergency button Metal safety pushbutton

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens 3SU1050-1GB20-0AA0 emergency stop actuator combined with the 3SU1550-0AA10-0AA0 holder.

Technical note

Expert tip

Always ensure that the chosen successor series components are correctly wired and installed to meet relevant safety standards for emergency stop functions.

What happens next?

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Frequently asked questions

How is the Siemens 3SB3500-1FA20 emergency stop button reset?

The Siemens 3SB3500-1FA20 emergency stop button is reset by rotating the mushroom head. This rotate-to-unlatch mechanism ensures the button only releases when intentionally turned.