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Siemens 3SB3501-1CA21 22mm Red Push-Pull Button

Siemens 3SB3501-1CA21 22mm red latching push-pull button.

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ManufacturerSiemens

Part number3SB3501-1CA21

Actuator Type Push-Pull Button

Size 22mm

Shape Round

Material Metal

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CAGE: 9NK75

22mm metal construction 40mm red push-pull button Latching operation Pull-to-unlock mechanism Illuminable for status feedback Includes holder for 3 elements

Product description

The Siemens 3SB3501-1CA21 is a 22mm metal round actuator featuring a red push-pull button. It has a 40mm button size and operates with a latching mechanism that requires a pull-to-unlock action. This unit is illuminable and includes a holder designed for up to three elements. It is part of the SIRIUS 3SB3 series, with the SIRIUS ACT 3SU1 series as its successor.

Push-pull buttons are used for distinct ON/OFF or START/STOP functions where a tactile confirmation of actuation and intentional unlocking is required. The illuminable feature provides status feedback, making it suitable for machine control, safety systems, and operator interfaces.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3SB3501-1CA21. We provide reliable, high-quality surplus automation components to meet your industrial needs.

Technical specifications

Actuator Type	Push-Pull Button
Size	22mm
Shape	Round
Material	Metal
Color	Red
Button Size	40mm
Mechanism	Latching with pull-to-unlock
Illumination	Illuminable
Holder Capacity	Up to 3 elements
Series	SIRIUS 3SB3 (SIRIUS ACT 3SU1 successor)

Common applications

Industrial control panels

Machine start/stop functions

Safety systems

Process automation

Manufacturing equipment

Operator interfaces

Compatible systems

Successor series: SIRIUS ACT 3SU1

Also known as

Siemens 22mm red push-pull switch 40mm latching push button

Replaces / compatible with

This part is a phased-out product. The preferred successor type is >>3SU1051-1CA20 + 3SU1550-0AA10-0AA0<<, from the SIRIUS ACT 3SU1 series.

Technical note

Expert tip

For illumination in the successor 3SU1 series, a separate illumination unit and appropriate contact block must be ordered and combined with the actuator.

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Frequently asked questions

How does the latching mechanism work on the Siemens 3SB3501-1CA21 push-pull button?

The Siemens 3SB3501-1CA21 operates with a latching mechanism where pressing the button activates a state, and this state is maintained until the button is intentionally pulled outwards to unlock and reset it.