3SB3500-4ED01 - ALTRI PRODOTTI - SIEMENS

⚙️ Siemens 3SB3500-4ED01 – RONIS key-operated switch 22 mm, metal, 3 positions I-O-II momentary

The Siemens 3SB3500-4ED01 is a key-operated switch actuator from the 3SB3 range of commanding and signalling devices, in the 22 mm format, with a round metal front and a RONIS lock number SB30, supplied with 2 keys.

The switch has 3 positions I-O-II with an actuating angle of 2 x 50° and momentary operation: after being turned to the right or to the left, it automatically returns to the centre position O. The key can be removed only in position O, so the command can only be given by someone who has the key and keeps it inserted.

The actuator is supplied with holder for panel mounting. Instead of the standard SB30 lock, the RONIS special locks SB31, 455 and 421 can be used, which is useful when different keys are required for different areas or access levels.

The metal 3SB3 range offers IP67 degree of protection at the front of the panel. The weight is approximately 0.11 kg.

Siemens lists the 3SB3500-4ED01 as a phased-out product: the 3SB3 range has been replaced by the SIRIUS ACT 3SU1 range. The part number is still in demand as a spare part for existing control panels and consoles.

🔧 Key features – Siemens 3SB3500-4ED01

• Type: Key-operated switch actuator
• Series: Siemens 3SB3
• Mounting diameter: 22 mm
• Shape and material: Round, metal
• Lock: RONIS, number SB30, with 2 keys
• Positions: 3 (I-O-II)
• Actuating angle: 2 x 50°
• Operation: Momentary, with return to O from right and left
• Key removal: In position O
• Possible special locks: SB31, 455, 421
• Scope of delivery: With holder
• Degree of protection: IP67
• Weight: approx. 0.11 kg
• Product status: Phased out, successor in the SIRIUS ACT 3SU1 range

🏭 Typical applications – Siemens 3SB3500-4ED01

• Commands restricted to authorised personnel on machine control panels and consoles
• Temporary selection of maintenance or set-up modes
• Key-protected momentary forward/reverse or up/down commands
• Enabling of special functions on industrial automation systems
• Lifts, goods lifts, industrial doors and gates
• Replacement of 3SB3 key-operated switches on existing control panels

🛠️ E-Repair services for Siemens 3SB3500-4ED01

E-Repair offers a complete package of services focused on production continuity:

🚚 Product sales

❓ FAQ – Siemens 3SB3500-4ED01

✔️ What does it mean that the 3SB3500-4ED01 is "momentary"?

It means that positions I and II are not maintained: the switch holds the position only as long as the operator keeps the key turned, then returns automatically to position O. It is suitable for commands that must last only for the duration of the actuation.

✔️ Does the 3SB3500-4ED01 include contact blocks?

The Siemens description lists the actuator with lock, 2 keys and holder. In the 3SB3 range, contact blocks are selected and ordered according to the circuit to be built: before ordering, we recommend checking which contacts are needed and whether those of the existing device can be reused.

✔️ Can I use a lock with a key other than SB30?

Yes. For this switch, Siemens provides the RONIS special locks SB31, 455 and 421, which allow different keys to be used, for example for different departments or authorisation levels.

✔️ Is the 3SB3500-4ED01 still in production?

Siemens lists it as a phased-out product. The successor is in the SIRIUS ACT 3SU1 range: to identify the equivalent part number, Siemens provides an online conversion tool. When replacing with a 3SU1 device, the compatibility of the contact blocks must also be checked.

✔️ Can I receive the 3SB3500-4ED01 quickly?

Yes. If available in stock, the switch can be shipped quickly. Contact E-Repair Customer Care stating the part number and, if necessary, the required lock number.

ℹ️ The information in this product sheet is general and indicative and may contain inaccuracies or errors. Before purchasing, installing or commissioning, always check the technical data in the manufacturer's official documentation or contact E-Repair.