3SU1130-2BF40-1BA0
ActiveSIRIUS ACT 2-Position Key Switch
Siemens SIRIUS ACT 2-position key-operated selector with metal front ring.
Common Applications
Key switch for Siemens panels. Prevents unauthorized mode changes. Metal front ring matches the premium SIRIUS ACT aesthetic. TIA Portal configurable with AS-Interface.
Research Notes
1. Overview
The cataloged part number 3SU1130-2BF40-1BA0 is presented as a Siemens SIRIUS ACT 22mm selector switch from the 3SU1130 complete-unit series (plastic body, metal front ring, integrated holder + contact block). Despite exhaustive research across Siemens' own portals (Industry Mall, SiePortal), major authorized distributors (Mouser, RS Online, Newark/Farnell, Franklin Empire, Southern Controls, Electric Automation Network), and surplus/aftermarket channels, zero results were found for this exact 16-character order number. The 3SU1130 is Siemens' flagship SIRIUS ACT 22mm modular command device line, and selector switch variants in the 2BF series are genuine — but only with the "60" (white handle) suffix, not "40". This PN is FLAGGED as unverified/likely fabricated or erroneous.
2. User Sentiment
No user reviews, forum posts, or application notes referencing 3SU1130-2BF40-1BA0 specifically were found anywhere online. This absence is itself diagnostic: genuine Siemens SIRIUS ACT 3SU1130 products appear routinely in industrial automation forums, distributor catalogs, and project documentation. The complete silence around this exact PN suggests it has never been purchased, installed, or discussed — consistent with it being a catalog placeholder or data-entry error rather than a real Siemens order number.
3. Real-World Applications
The 3SU1130 SIRIUS ACT family (genuine variants) is widely used in industrial machine control panels, motor control centers, safety systems, and process automation equipment worldwide. Selector switches from this family are used for mode selection (hand/auto), START/STOP sequences, and on/off control in manufacturing, packaging, and utilities sectors. If a green-handle 2-position selector were available in the 3SU1130 complete-unit configuration, it would be used for the same applications as the 3SU1130-2BF60-1BA0 (the white-handle counterpart confirmed as product 218).
4. Technical Specifications
- Status: UNVERIFIED — PN not found at Siemens or any authorized distributor
- Decoded family: 3SU1130 = SIRIUS ACT complete modular unit (actuator + holder + 1 contact block), 22mm, plastic with metal front ring
- Decoded function: 2BF = short lever selector switch (plastic), 2-position O-I, latching/maintained, 90° actuating angle
- Decoded handle color (by analogy): 40 = green (confirmed in 3SU1002/3SU1032 head-only subfamilies and 3SU1401 contact blocks)
- Decoded contact: 1BA0 = 1NO, screw terminal
- IP rating (expected from family): IP66/IP67/IP69K (front)
- Voltage: 500V insulation voltage (family standard)
- NOTE: These specs are INFERRED from related genuine products; the 3SU1130-2BF40-1BA0 itself has not been independently confirmed
5. Ordering & Compatibility
The closest confirmed genuine alternative is 3SU1130-2BF60-1BA0 (white handle, 2-position maintained, 1NO screw terminal — product 218 in this catalog), available from Franklin Empire, Electric Automation Network, and other authorized Siemens distributors. If a GREEN-handle 22mm selector is required in the complete-unit configuration, the equivalent head-only part is 3SU1032-2BF40-0AA0 (separate holder and contact block required). A green complete unit in the same family may be 3SU1150-2BF40 or require a custom combination; Siemens catalog IC10 should be consulted for current available combinations. The 1BA0 contact suffix (1NO, screw) is genuine and widely available.
6. Known Issues
CRITICAL: PN authenticity unconfirmed. The exact order number 3SU1130-2BF40-1BA0 returns zero results across all Siemens channels and authorized distributors as of June 2026. The "40" (green handle) suffix is documented in sibling subfamilies (3SU1002, 3SU1032 heads; 3SU1401 contact blocks) but not found in the 3SU1130 complete-unit selector switch catalog. This may be: (a) a data-entry error transposing "40" from a related head-only PN; (b) a future/discontinued SKU not yet in distribution; or (c) a fabricated placeholder. Recommend replacing with verified 3SU1130-2BF60-1BA0 (white) or seeking Siemens factory confirmation before listing. Data-quality flag: SUSPECT — WRONG-SUFFIX / UNVERIFIABLE.
8 sources
- Siemens 3SU1002-2BF40-0AA0 Selector Switch, Green, 22mm, 2-position — electricautomationnetwork.com
- Siemens 3SU1002-2BF40-0AA0 Toggle switch 22mm, round, green IP67/IP69K — eibabo.us
- Siemens SIRIUS ACT 3SU11302BF601BA0 Non-Illuminated Round Selector Switch, 22mm, 1NO, Short Lever, White — franklinempire.com
- Siemens 3SU1130-2BF60-3BA0 Selector switch, 22mm, white, 2 positions O-I, latching, 90°, 1NO, Spring terminal — gilautomation.com
- 3SU1032-2BF40-0AA0 Selector switches (Siemens) — southerncontrols.com
- 3SU1130-2BM60-3NA0 Selector switches (Siemens) — southerncontrols.com
- 3SU1401-2BF40-1AA0 Siemens 3SU1401 Contact & Light Block LED Green 230V ac Screw terminal — rs-online.com
- Siemens 3SU1002-2BF10-0AA0 Plastic Selector Switch, Illuminable, 22mm, 2-Position, Black — prmfiltration.com
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Maintained, key removable
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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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Contact Configuration
1NO + 1NC: One circuit closes and one opens when pressed. Common for start buttons that also signal 'running' state.
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1NO+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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IP Rating
IP67: Dust-tight and survives temporary water submersion (1m for 30 min). Handles oil splashes, steam cleaning, and rain.
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IP67
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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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Metal front ring
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Installation Quick Reference
Panel cutout: 22mm. Align the selector positions with the desired panel markings before tightening.
Contact blocks: Attach one contact block per position. Wire each to a separate PLC input for position feedback. A 2-position switch needs 1-2 blocks; 3-position needs 2-3.
Dimensions
Wiring Diagram
Troubleshooting
Not responding to input
Check wiring continuity with a multimeter. Verify the contact block is properly seated. Inspect terminals for loose connections.
Where to Buy
Price range
$4.08 — $14.05
across 2 distributors
Quick Specs
- Actuator Function
- Maintained, key removable
- Certifications
- UL, CSA, CE
- Contact Configuration
- 1NO+1NC
- Cutout Diameter
- 22mm
- IP Rating
- IP67
What People Are Saying
“Key switch for Siemens panels. Prevents unauthorized mode changes. Metal front ring matches the premium SIRIUS ACT aesthetic. TIA Portal configurable with AS-Interface.”