Push Buttons and Pilot Devices

Class 52 Pilot Devices

Announcing the new Class 52 Pilot Devices - Available NOW!

Siemens is pleased to announce that we have improved our existing line of Class 52 Pilot Devices and have expanded to include new products.  Our complete range of oil tight pilot devices will provide a solution that is aesthetically pleasing and functionally impressive.

New Products: Integrated LED Module, Twist-to-Release, and 3 Position Push-Maintained Pull-Momentary

Product Enhancements:  The new modular design allows for quick delivery, multiple distributor options and a full product line for the end-user.  Lighting modules, operators and lens can be ordered fully assembled or independently depending upon the application.  The latest illumination technology includes traditional incandescent lights, energy saving LEDs, and extra bright cluster LEDs.  The ribbed concentric lens provides improved lighting distribution and aesthetic appeal.

16mm & 22mm Pushbuttons, Indicator Lights & Stations

16mm & 22mm Pushbuttons, Indicator Lights & Stations

The complete range of pushbuttons and indicator lights are part of the extensive SIRIUS pilot and signaling devices.

The following products are offered:

3SB2: The 16mm product line is ideally suited for small operating areas.

3SB3: The 22mm family is available in molded-plastic (round or square design) or metal (round design). The components can be incorporated into enclosures.

3SF5: The 3SB3 devices can be easily integrated with AS-Interface enclosures.

30mm Pilot Devices and Stations

30mm Pilot Devices and Stations

The 30mm pilot devices are designed to stand up to the punishing water, dust and oil environments of American manufacturing.

The following products are offered:

Class 52: Oil tight pilot controls and accessories are designed to provide long, trouble-free service in the most demanding applications.  (N4/4X/13 available)

Class 51: Devices may be used where the presence of flammable gases, vapors or finely pulverized dust create a threat of explosion or fire. (N7/9 available)

Class 50: Standard duty control stations are used with the magnetic controllers to start, stop, reverse, or adjust speed of applicable motors.

Available Product Lines


16mm Round Plastic


22mm Round Metal


22mm Round Plastic


22mm Square Plastic


22mm Pushbutton Enclosures


22mm AS-Interface Enclosures

Class 52

30mm Metal (Command52)

Class 52

30mm Corrosion  Resistant (BlackMax)

Class 52

Heavy Duty Pushbutton Enclosures

Class 51

NEMA 7 & 9 Hazardouz Locations

Class 50

Standard Duty Pushbutton Stations

Pushbutton & Pilot Device News

02/2010: New Polyamide E-STOP Released for Sale

Catalog Numbers: -  32MM: 3SB3500-1FA20-0PA0-  40MM: 3SB3500-1HA20-0PA0

The mushroom pushbuttons of the new actuators consist of the more resistant material polyamide.  We recommend the new versions for ambient conditions under which the EMERGENCY-STOP actuators come into contact with oils/lubricants.

10/2009: New ASI F-Adapter Released for Sale

Catalog Numbers:- 2I:         3SF5402-1AA05- 2I/1O:   3SF5402-1AB05

Using the AS-Interface with safety oriented communication, E-STOP actuators for front plate installation can be directly connected to a safe module. 

Difference compared with predecessor:

  • New versions feature a lower mounting depth than the predecessor devices.

  • F-adapter now available with insulation piercing in addition to screw-type and spring-loaded connection.  The insulation piercing method offers the advantage of an easy and fast connection process.

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