The Siemens 3SU10004BL010AA0 is a RONIS key-operated switch from the Siemens SIRIUS ACT 3SU1 series, designed for controlled machine operation, industrial control panels, automation systems and electrical operator stations. It features a 22 mm round plastic design, RONIS lock number SB30, 2 supplied keys, and three switch positions: I-O-II.
The switch uses a latching operating principle with a 2 × 45° actuating angle, providing three defined positions at 10:30h, 12h and 13:30h. The key can be removed in the O position, while special lock options including SB31, 421 and 455 are possible depending on the required configuration.
The Siemens 3SU10004BL010AA0 RONIS key-operated switch is designed for applications where a machine or electrical control function needs to be operated through a key rather than a standard pushbutton.
The three-position arrangement I-O-II allows the machine designer to assign three different operating states to the switch. Depending on the control system, these positions can represent different operating modes, functions or equipment states.
Because the switch is latching, the selected position remains mechanically maintained until the key is turned to another available position.
The ability to remove the key in the O position can be useful where the machine should remain in a defined OFF or neutral condition while preventing unauthorized switching.
The Siemens 3SU10004BL010AA0 three-position key switch provides a controlled operator interface for industrial machines and electrical control panels.
Its 22 mm round mounting format makes it suitable for standardized control-panel layouts. The plastic actuator and key-operated mechanism can be combined with other SIRIUS ACT operator devices to create a consistent machine interface.
The three positions provide additional flexibility compared with a conventional two-position key switch. A machine builder can assign the positions to appropriate control functions according to the equipment's electrical and automation design.
For example, the three positions could be configured for different operating modes, provided the associated control system is designed accordingly.
The I-O-II arrangement provides three distinct switch positions:
The positions are arranged at 10:30h, 12h and 13:30h, respectively.
The 2 × 45° actuating angle means the key rotates 45° from the centre position to either side.
This makes the switch suitable for applications requiring two selectable operating states around a central OFF or neutral position.
The 3SU10004BL010AA0 uses a latching operating principle. When the key is turned to one of the available positions, the switch remains in that position rather than automatically returning.
This is useful for functions such as:
The exact function assigned to each position must be defined by the machine's control design.
A particularly useful feature of this model is that the key can be removed in the O position.
This means an operator can place the switch in its centre/O position and remove the key. The switch remains in that position until the correct key is inserted again.
This can be useful where a machine designer wants to restrict unauthorized changes to the operating mode or maintain the machine in a defined inactive condition.
However, key removal alone should not be treated as a substitute for a complete machine safety or energy-isolation procedure.
The product is supplied with RONIS lock number SB30 and 2 keys.
The lock number is particularly important when replacing an existing key-operated switch because the replacement must provide the appropriate key/lock configuration.
The product also supports possible special lock configurations including:
For replacement applications, verify the required lock number and complete Siemens ordering code before purchasing.
The Siemens 3SU10004BL010AA0 RONIS key switch can be considered for:
OEM machine manufacturers and panel builders can use the Siemens 3SU10004BL010AA0 to provide controlled operator access to machine functions.
The SIRIUS ACT platform includes compatible key-operated switches, selector switches, pushbuttons, illuminated pushbuttons, indicator lights and emergency-stop devices, allowing machine builders to develop a consistent operator interface.
For a complete switching assembly, the appropriate holder and contact modules should be selected according to the electrical requirements of the application.
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SB Smart supplies a wide range of Siemens industrial automation products, SIRIUS ACT operator controls, key-operated switches, pushbuttons, selector switches, indicator lights, emergency-stop devices, contactors and motor-control products.
The product range supports requirements from OEM manufacturers, panel builders, system integrators, contractors and industrial maintenance teams.
For replacement requirements, bulk orders and industrial projects, customers can enquire about product availability and quotation assistance.
The Siemens 3SU10004BL010AA0 is a RONIS key-operated switch from the SIRIUS ACT 3SU1 series with three positions, I-O-II, and a latching operating mechanism.
The product is specified with 2 keys.
The specified standard lock number is SB30.
It has 3 switch positions: I, O and II.
The switch has a 2 × 45° actuating angle, with positions at 10:30h, 12h and 13:30h.
Yes. It uses a latching operating principle, so the selected position remains mechanically maintained.
The key can be removed in the O position.
The product specification indicates possible special locks including SB31, 421 and 455.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS ACT 3SU1 |
| Model Number | 3SU10004BL010AA0 |
| Product Type | Key Operated Switch Body / Contact Block |
| Mounting Size | 22 mm |
| Operation Type | Maintained / Latching |
| Positions | 3 (I – O – II) |
| Lock System | RONIS SB30 (with 2 keys) |
| Contact Type | Electrical switching module |
| Material | Industrial-grade plastic / metal hybrid |
| Protection Class | IP66 / IP67 / IP69 / IP69K |
| Operating Temperature | -25°C to +70°C |
| Mounting Type | Panel mounting modular system |
| Application | Control & access security systems |
| Brand | Siemens |
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