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Silver keyed selector switch 22 mm metal head black bezel

SIEMENS

SIEMENS 3SU1100-4BL11-1NA0 22 mm Selector Switch 2NO Silver

SKU CH-0J0H-XV8AB

22 mm keyed selector switch with three maintained positions, two normally open contacts and silver metal operator head

  • Brand nameSIEMENS
  • Engine size22 mm
  • Three-position maintained switching gives flexible control
  • Keyed operator with any-position removal secures access
  • Silver metal head on black bezel suits industrial panels
  • 10 A at 600 V AC and 1 A at 600 V DC handles power circuits
  • IP20, IP66, IP67, IP69 and IP69K ratings protect in harsh environments

SIEMENS 22 mm Selector Switch 2NO

The SIEMENS 3SU1100-4BL11-1NA0 is a 22 mm industrial selector switch with a silver keyed operator and two normally open contacts. It is designed for panel-mounted control circuits in machinery and automation systems requiring maintained three-position switching.

Contact rating and environmental headroom

The switch carries a 10A rating at 600V AC and 1A at 600V DC with an A600/R300 NEMA designation. It meets NEMA 1, 2, 3, 3R, 4, 4X, 12 and IP20, IP66, IP67, IP69, IP69K ratings, so it withstands wash-down and outdoor exposure but is not rated for higher voltage or current loads.

Thermals noise and power draw

As a passive electromechanical device it generates no audible noise and draws no power in normal operation. Heat rise is limited to the contact resistance at the rated 10A AC or 1A DC load, and the metal operator head with plastic bezel provides durable actuation without active cooling.

How it compares

Measured against everything we stock in Bench & DC Power Supplies, at today’s prices. Recalculated every night.

Price $77.99
Pricier than about 68% of the 677 comparable items (median $33.99).

Specifications

Product
Brand nameSIEMENS
Size & build
Engine size22 mm

Questions about this item

Will the 22 mm cutout fit the panel I already have drilled for a 22 mm operator?

Yes, the switch is built for a standard 22 mm mounting hole and uses a metal operator head with a plastic bezel that matches existing 22 mm panel cutouts.

How can I confirm the 2NO contacts are switching correctly after wiring?

With power off, use a multimeter on the screw terminals; each maintained position should show continuity on both normally-open contacts per the 10A @ 600V AC rating.

Does the package include the 2NO contact block or must I order it separately?

The selector switch assembly includes the 2NO contact form as specified; no separate contact block purchase is required for the listed configuration.

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