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Siemens 22mm key-operated switch with silver metal bezel

SIEMENS

SIEMENS 3SU1050-5BF11-0AA0 22mm Key-Operated Switch

SKU CH-EJ0A-C4MZ5

A 22 mm key-operated switch with maintained two-position action, metal bezel, IP69K and NEMA 1, 2, 3, 3R, 4, 4X, 12 ratings, and key removal in all positions

  • Product colorGray
  • Key removal in all positions for flexible access
  • 22 mm mounting fits standard panels
  • Metal bezel resists impact and corrosion
  • IP69K and NEMA 4X rated for wash-down environments
  • Two maintained positions give stable on/off control

22 mm Key-Operated Switch for Industrial Panels

The SIEMENS 3SU1050-5BF11-0AA0 is a 22 mm key-operated switch designed for industrial control panels. It provides maintained two-position operation with key removal possible in all positions. The metal bezel and high IP rating suit demanding environments.

Verify Mounting Hole and NEMA Requirements

Confirm the panel cut-out matches the 22 mm diameter before ordering. Ensure the required NEMA rating — 1, 2, 3, 3R, 4, 4X or 12 — aligns with your enclosure specification. The switch carries CE, CSA and UL markings for compliance checks.

Metal Bezel and IP69K Rating for Daily Use

The silver metal bezel resists impact and corrosion in harsh settings. An IP69K rating withstands high-pressure, high-temperature wash-downs common in food or pharmaceutical plants. Chrome operator colour aids visibility, while the included lock secures access immediately.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $131.99
Pricier than about 74% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameSIEMENS
Product colorGray

Questions about this item

Does the switch include the lock cylinder and keys, or must they be ordered separately?

The unit includes the lock, so no separate cylinder or key set is required for installation.

Which operator style and bezel material does this part number provide?

This part number supplies a chrome key operator with a silver metal bezel in a 22 mm mounting size.

What do the NEMA and IP ratings mean for daily use?

The NEMA 1, 2, 3, 3R, 4, 4X, 12 and IP69K ratings indicate protection against dust, water jets and high-pressure wash-down in indoor or outdoor environments.

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