Description
Siemens 3SB3500-4DD01 Key-Operated Selector Switch – New Old Stock (Boxed)
Are you searching for an original Siemens 3SB3500-4DD01 key switch to repair your industrial control panel? Because this specific 3SB3 series is now officially discontinued by Siemens, finding factory-fresh replacements can be highly challenging.
Fortunately, we have a limited inventory of genuine Siemens 3SB3500-4DD01 22mm metal selector switches available. Specifically, these units are 100% brand new old stock (NOS) and ship securely inside their original factory boxes.
Reliable Maintenance for Legacy Control Panels
When a mechanical key switch breaks on a critical machine, upgrading the entire panel layout is rarely a practical solution. Therefore, this Siemens 3SB3500-4DD01 actuator allows you to drop an exact, uninstalled replacement straight into your existing setup.
Consequently, you get the robust reliability of a heavy-duty metal Siemens component without the expense of a system redesign. The internal mechanism is in pristine, flawless condition. Furthermore, each boxed unit comes complete with its standard set of 2 original RONIS keys. However, please note that the outer cardboard packaging may show light cosmetic shelf wear from long-term warehouse storage.
Heavy-Duty Build Quality and Seamless Operation
In addition to its premium metal construction, the switch offers smooth mechanical actuation across three latching positions (I-O-II). It uses a standard 22mm mounting diameter, which means it fits perfectly into your existing panel cutouts. As a result, your maintenance technicians can complete the physical swap very quickly.
Meanwhile, the switch is engineered with a strict safety feature that only allows key removal in the center “O” position. Subsequently, this prevents unauthorized machine operation while the system is actively running in position I or II.
Key Technical Specifications
- Manufacturer: Siemens
- Part Number: 3SB3500-4DD01
- Product Line: SIRIUS 3SB3 Command Devices
- Actuator Type: Key-operated selector switch (Metal, round, 22mm)
- Switching Positions: 3 positions (Maintained / Latching / I-O-II)
- Lock Type: RONIS mechanism (Lock number SB 30)
- Key Removal: Center position “O” only
- Protection Class: IP67 heavy-duty dust and water resistance
- Condition: New Other / New Old Stock (NOS) in original box
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