3SU1130-0AB20-3CA0
AktivSiemens SIRIUS ACT 3SU1 Red Flush Pushbutton 1NC (3SU1130-0AB20-3CA0)
Siemens SIRIUS ACT red guarded push button.
Typische Anwendungen
Metal front ring with protective guard. Prevents accidental activation on Siemens panels.
Research Notes
1. Overview
The Siemens 3SU1130-0AB20-3CA0 is a complete 22 mm SIRIUS ACT pushbutton — round, plastic with a metal front ring, red, flat (flush) actuator, momentary, with a 1 NC contact. It's an assembled unit (actuator + holder + contact) from Siemens' current SIRIUS ACT 3SU1 line, rated IP66/IP67/IP69. Red + 1 NC is the classic stop/off configuration. (Data-quality note: this was cataloged as a "Red Guarded/Shrouded Button" — per Siemens' datasheet the actuator is flat (flush), not guarded. "Guarded/Shrouded" has been a recurring mislabel in this catalog — verify the real actuator style.)
2. User Sentiment
SIRIUS ACT is Siemens' modern, well-regarded 22 mm platform — plastic-with-metal-front-ring build, tool-free assembly, and tight Siemens ecosystem fit. A complete red flat momentary is the standard stop control (1 NC opens on press). The main care point is decoding color, actuator style, and contact from the order number.
3. Real-World Applications
Red STOP / OFF flat (flush) momentary pushbutton on machine and control panels — the 1 NC contact interrupts a circuit on press. (For a latching emergency stop, use a red mushroom, not this flush momentary.)
4. Technical Specifications
- Type: SIRIUS ACT 3SU1 complete pushbutton, 22 mm, flat/flush, momentary
- Color: red (color code -0AB20-)
- Construction: round, plastic with metal front ring
- Contact: 1 NC (per the "-3CA0" suffix)
- Cutout: 22 mm
- Sealing: IP66 / IP67 / IP69
- Approvals: UL, CSA, CE
5. Ordering & Compatibility
Complete unit (actuator + holder + contact). The 3SU1 order number carries color, actuator style, and contact — confirm all (here red, flat, 1 NC). Uses standard SIRIUS ACT 3SU1 service modules. Color codes: -0AB10 green / -0AB20 red / -0AB30 yellow / -0AB60 white, etc.
6. Known Issues / DQ
- DQ: it's a flat (flush) actuator, not "guarded/shrouded" (Siemens datasheet). Corrected here. ("Guarded/Shrouded" is a recurring mislabel template in this catalog.)
- Practical care: decode color/actuator/contact from the full order number, confirm the 22 mm cutout; a flush momentary red button is not a latching e-stop.
2 sources
Spezifikationen
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Actuator Type
The button head style. Flush sits level with the bezel (prevents accidental presses). Extended protrudes for easy access.
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Flat (flush)
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Red
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Contact Configuration
Normally Closed — circuit is on until you press. Standard for stop/emergency functions. Wire in series with safety circuits.
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1NC
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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Device type
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SIRIUS ACT 3SU1 complete pushbutton (red flat, 1NC, momentary)
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IP Rating
IP69K: Dust-tight and withstands high-pressure, high-temperature steam jets. Built for food processing washdown environments.
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IP66 / IP67 / IP69
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Plastic with metal front ring
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Pn note
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Corrected: 3SU1130-0AB20-3CA0 = red FLAT (flush) momentary pushbutton, 1NC (Siemens datasheet), NOT guarded/shrouded. Guarded/Shrouded is a recurring mislabel template (cf #450 projecting, #451 mushroom).
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Pn status
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actuator-corrected
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Installationskurzanleitung
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
Abmessungen
Schaltplan
Fehlerbehebung
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
Bezugsquellen
Preisbereich
$72.94 — $187.35
bei 3 Händlern
Kurzspezifikationen
- Actuator Type
- Flat (flush)
- Certifications
- UL, CSA, CE
- Color
- Red
- Contact Configuration
- 1NC
- Cutout Diameter
- 22mm
Das sagen Anwender
“Metal front ring with protective guard. Prevents accidental activation on Siemens panels.”
