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Silver keyed selector switch 22 mm metal head black bezel

SIEMENS

SIEMENS 3SU1100-4BF11-1FA0 Non-Illuminated Selector Switch 22 mm 1NO/1NC Silver

SKU CH-DDJY-TPYF8

A 22 mm keyed selector switch with maintained two-position action and silver metal operator head, rated 10 A at 600 V AC and sealed to IP66, IP67, IP69 and IP69K

  • Engine BrandSIEMENS
  • Engine Size22 mm
  • 22 mm mounting fits standard panels
  • keyed operator with any-position removal secures access
  • 1NO/1NC contacts rated 10 A at 600 V AC
  • NEMA 1, 12, 2, 3, 3R, 4, 4X enclosure rating
  • IP20, IP66, IP67, IP69, IP69K ingress protection

SIEMENS 22 mm Selector Switch

The SIEMENS 3SU1100-4BF11-1FA0 is a non-illuminated selector switch designed for industrial control panels and machinery. Its 22 mm mounting diameter fits standard cut-outs, while the keyed operator provides secure position selection. The silver metal head and black plastic bezel suit harsh environments. It is built for maintenance engineers and panel builders who need reliable manual switching.

Check mounting cut-out and contact rating

Verify that your panel has a 22 mm cut-out and that the 10A at 600V AC or 1A at 600V DC contact rating matches your circuit requirements. The switch uses a maintained action with 1NO/1NC contacts and a NEMA A600/R300 designation. Confirm the key removal position and NEMA 1, 12, 2, 3, 3R, 4, 4X ratings meet your enclosure specifications. No cam is included with this unit.

IP66 IP67 IP69K protection for tough conditions

The switch achieves IP20, IP66, IP67, IP69 and IP69K ratings, resisting dust, high-pressure washdown and temperature extremes. The plastic bezel and metal operator head withstand vibration and mechanical shock in normal industrial use. Power dissipation stays low because the contacts carry only the rated control current. No active cooling or special wiring is required for standard operation.

Highlights

  • 22 mm mounting fits standard panels
  • keyed operator with any-position removal secures access
  • 1NO/1NC contacts rated 10 A at 600 V AC
  • NEMA 1, 12, 2, 3, 3R, 4, 4X enclosure rating
  • IP20, IP66, IP67, IP69, IP69K ingress protection

Specifications

Engine BrandSIEMENS
Engine Size22 mm

Questions about this item

Does the 22 mm selector switch include the mounting hardware or must I buy the contact block separately?

The operator head, metal key and bezel are supplied together; the 1NO/1NC contact block is already integrated, so no extra contact block is required.

Should I choose the maintained two-position version or a momentary alternative for a machine that must stay in the selected mode?

This model uses maintained action at both positions, meaning the key stays in the chosen position until turned again — ideal for mode selection that must not spring back.

What does the 10 A at 600 V AC rating mean when the switch is wired into a control panel?

It certifies that the silver contacts can continuously carry 10 amps at 600 volts AC (A600 duty) without overheating, matching standard industrial control-circuit loads.

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