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Siemens 3SB3500-1HA26 22mm Emergency Stop Mushroom Pushbutton

Siemens 3SB3500-1HA26 22mm red metal emergency stop pushbutton.

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ManufacturerSiemens

Part number3SB3500-1HA26

Size 22mm

Actuator Type Emergency Stop Mushroom Pushbutton

Button Size 40mm

Function Positive Latching

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12-month warranty

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Veteran-owned

CAGE: 9NK75

22mm metal round emergency stop 40mm red mushroom button Positive latching with rotate-to-unlatch Mechanical switch position indicator High visibility and reliability

Product description

The Siemens 3SB3500-1HA26 is a 22mm round, metal emergency stop mushroom pushbutton in red, featuring a 40mm button size. It incorporates positive latching and a rotate-to-unlatch mechanism, along with a mechanical switch position indicator. This is a phased-out product, with SIRIUS ACT 3SU1 being the successor, and the preferred replacement type being 3SU1051-1HB20-0AA0 + 3SU1550-0AA10-0AA0.

This emergency stop button is designed for critical safety applications, offering clear visual feedback via the mechanical indicator. Its robust metal construction ensures reliability in demanding industrial environments. The 22mm standard mounting is compatible with most control panels.

Stanlo Automation, as a veteran-owned surplus parts distributor, provides this essential safety component. Sourcing this phased-out part from us offers a cost-effective way to maintain your existing safety systems and ensure operational continuity.

Technical specifications

Size	22mm
Actuator Type	Emergency Stop Mushroom Pushbutton
Button Size	40mm
Function	Positive Latching
Release	Rotate-to-Unlatch
Indicator	Mechanical Switch Position Indicator
Color	Red
Material	Metal
Series	3SB3

Common applications

Emergency Stops

Machine Safety

Industrial Control Panels

Manufacturing

Safety Systems

Hazardous Operations

Compatible systems

Control panels Machine interfaces Industrial safety systems

Also known as

Siemens 3SB3500-1HA26 E-stop 22mm mushroom E-stop with indicator Rotate-to-unlatch safety button Metal emergency pushbutton

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens 3SU1051-1HB20-0AA0 emergency stop actuator combined with the 3SU1550-0AA10-0AA0 holder.

Technical note

Expert tip

The inclusion of a mechanical indicator is a valuable feature for quickly assessing the status of safety circuits in complex control panels.

What happens next?

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Frequently asked questions

What does the mechanical switch position indicator on the Siemens 3SB3500-1HA26 do?

The mechanical switch position indicator on the Siemens 3SB3500-1HA26 provides a visual confirmation of the button's state (latched or unlatched). This adds an extra layer of certainty for operators in critical safety applications.