The Siemens 3SU1100-1HB20-1CG0 is described by Siemens as: EMERGENCY STOP mushroom pushbutton, 22 mm, round, plastic, red, 40 mm, positive latching, acc. to EN ISO 13850, rotate-to-unlatch, with yellow backing plate, inscription: EMERGENCY STOP, with holder, 1 NC, screw terminal.
Operator controls wear quickly on busy machines, and a complete 3SU1 unit is the fastest way to restore a broken button or lamp.
See our Siemens range.
Technical data
| Siemens order number | 3SU1100-1HB20-1CG0 |
|---|---|
| Product type designation | 3SU1 |
| Degree of protection | 1, 2, 3, 3R, 4, 4X, 12, 13 |
| Ambient temperature (operation) | -25 … +70 °C |
| Weight, approx. | 0.074 kg |
| Condition | New, original Siemens |
Key features (per Siemens)
- EMERGENCY STOP mushroom pushbutton
- 22 mm
- Round
- Plastic
- Red
- 40 mm
- Positive latching
- Acc. to EN ISO 13850
- Rotate-to-unlatch
Typical applications
- Start, stop and selector functions
- Machine control panels
- Retrofits with 22 mm holes
- Emergency stop circuits
- Indicator lights on panel doors
Compatibility and replacement
SIRIUS ACT uses 22 mm mounting holes. Contact and LED modules can be changed separately on the holder.
Replacement checklist
- Note the firmware version printed on the old unit; TIA Portal or LOGO! Soft Comfort must support it.
- Compare the full order number 3SU1100-1HB20-1CG0 with the label on the old unit, including the last digits (they identify the version).
- Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.
Frequently asked questions
Can I change only the contact block?
Yes, 3SU1400 contact modules clip onto the holder.
What hole size does it need?
22 mm (22.3 mm cut-out per Siemens).
Can I get a datasheet?
The official manufacturer datasheet is the source of the technical data above; we can send the PDF with the quotation on request.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





