• Siemens SIRIUS ACT 3SU11 Mushroom & E-Stop Buttons, Plastic (Complete)
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Siemens SIRIUS ACT 3SU11 Mushroom & E-Stop Buttons, Plastic (Complete)

Siemens SIRIUS ACT 3SU11 Mushroom & E-Stop Buttons, Plastic (Complete)

Complete SIRIUS ACT mushroom and EMERGENCY-STOP pushbutton units with black plastic front ring, holder and contact modules, to ISO 13850 and IEC 60947-5-5.

Key features

  • Red mushroom 30 mm or 40 mm diameter
  • EMERGENCY-STOP versions with positive latching and positive-opening NC contacts (IEC 60947-5-1 Annex K)
  • Pull-to-unlatch or rotate-to-unlatch versions
  • Optional self-adhesive yellow backing plate 75 mm with marking
  • Screw or spring-loaded terminal versions
  • Can be used with 3SK safety relays

Specifications

Brand Siemens
Product line SIRIUS ACT 3SU1
Device type Complete unit
Front ring Plastic, black
Mounting diameter 22 mm
Standards ISO 13850, IEC 60947-5-5
Source Siemens Catalog IC 10 · 2026, p. 1235-1236
3SU1100-1BA20-1CA0 Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: None | Connection: Screw
3SU1100-1BA20-1FA0 Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: None | Connection: Screw
3SU1100-1BA20-3CA0 Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: None | Connection: Spring-loaded
3SU1100-1BA20-3FA0 Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: None | Connection: Spring-loaded
3SU1100-1GB20-1PA0 Type: EMERGENCY-STOP | Mushroom: Red 30 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: None | Connection: Screw
3SU1100-1HB20-1PA0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: None | Connection: Screw
3SU1100-1HA20-1CH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HA20-1FH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HA20-1FG0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1CF0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: None | Connection: Screw
3SU1100-1HB20-1CH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HB20-1CG0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1CJ0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: ARRET D’URGENCE | Connection: Screw
3SU1100-1HB20-1PG0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1FH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HB20-1FG0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1FJ0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: ARRET D’URGENCE | Connection: Screw
3SU1100-1HB20-3CH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Spring-loaded
3SU1100-1HB20-3FH0 Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Spring-loaded
Pushbuttons & Pilot LightsSiemens
19 product codes available in this family
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Siemens SIRIUS ACT 3SU11 Mushroom & E-Stop Buttons, Plastic (Complete)

Brand Siemens·Pushbuttons & Pilot Lights

Available part numbers (19)

3SU1100-1BA20-1CA0, 3SU1100-1BA20-1FA0, 3SU1100-1BA20-3CA0, 3SU1100-1BA20-3FA0, 3SU1100-1GB20-1PA0, 3SU1100-1HB20-1PA0, 3SU1100-1HA20-1CH0, 3SU1100-1HA20-1FH0, 3SU1100-1HA20-1FG0, 3SU1100-1HB20-1CF0 + 9 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3SU1100-1BA20-1CA0Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: None | Connection: Screw
3SU1100-1BA20-1FA0Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: None | Connection: Screw
3SU1100-1BA20-3CA0Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: None | Connection: Spring-loaded
3SU1100-1BA20-3FA0Type: Mushroom pushbutton, latching | Mushroom: Red 40 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: None | Connection: Spring-loaded
3SU1100-1GB20-1PA0Type: EMERGENCY-STOP | Mushroom: Red 30 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: None | Connection: Screw
3SU1100-1HB20-1PA0Type: EMERGENCY-STOP | Mushroom: Red 40 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: None | Connection: Screw
3SU1100-1HA20-1CH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HA20-1FH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HA20-1FG0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Pull to unlatch | Contacts: 1 NO + 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1CF0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: None | Connection: Screw
3SU1100-1HB20-1CH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HB20-1CG0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1CJ0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: ARRET D’URGENCE | Connection: Screw
3SU1100-1HB20-1PG0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 2 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1FH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Screw
3SU1100-1HB20-1FG0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: EMERGENCY STOP | Connection: Screw
3SU1100-1HB20-1FJ0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: ARRET D’URGENCE | Connection: Screw
3SU1100-1HB20-3CH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NC | Marking: NOT-HALT | Connection: Spring-loaded
3SU1100-1HB20-3FH0Type: EMERGENCY-STOP | Mushroom: Red 40 mm, yellow adhesive plate 75 mm | Unlatching: Rotate to unlatch | Contacts: 1 NO + 1 NC | Marking: NOT-HALT | Connection: Spring-loaded

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