Autonics, SF2KR Series
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Safety Key Selector Switches
SF2KR Series
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The SF2KR series safety key selector switches are installed in safety fences or industrial equipment doors to control operation of machines, offering additional safety during maintenance in potentially dangerous environments.

last update: January 5, 2023

The SF2KR series safety key selector switches are installed in safety fences or industrial equipment doors to control operation of machines, offering additional safety during maintenance in potentially dangerous environments.

  • Check lock/unlock status with the front solenoid operation indicator (lockable model: SF2KR-M)
  • Various line-up of key release direction, N.C. contact powered location, and lock location depending on the general / lockable type
  • Contact block option up to 4 contacts
    : N.O. 1+N.C. 2, N.C. 3, N.O. 2+N.C. 2
  • 10 different key types
  • Sold separately
    : Name plate (SF2KR-□-NP□)
    : Contact block (SFEA-C□)

  • Operation Indicator

  • Various Operation Keys

  • Protection Rating

240 Different Models Available

The switches are available in various models including 4 types of key release direction, 3 types of N.C. contact powered location, and 10 types of keys depending on the general/lockable models for diverse applications.

Lock type Key release direction N.C contact powered location Lock location Contact block Key type
General type left left - N.O.1 + N.C.2
N.C.3
N.O.2 + N.C.2		 Basic key & key numbers 1 to 9
right left -
left right -
right right -
Lockable type right left right
right left left
right right right
right left right   left

The above graph is only for a reference. Please refer to the model information below for details.

  • Key Lock Function Available

    Key selector switches are available in single direction and bi-directional lock types with mechanical/solenoid release methods, preventing unintended mode switching during maintenance.

  • Front Operation Indicator

    Front operation indicator (green LED) allows users to easily identify solenoid operation status. 

  • Ensure Additional Safety with Shared Key

    The same key can be used with other key selector switches within or outside the fence, offering additional safety. Operators can enter potentially dangerous areas while possessing the key, preventing key loss or entrapment within the hazardous area.

    Example of system configuration for a pair of workers

    • Inside the fence (SF2KR-□)

    • Outside the fence (SF2KR-M□)

last update: January 5, 2023

TITLE DOCUMENT TYPE SIZE
SF2KR Series Catalogue Catalog 19114 KB
SF2KR Series Instruction Manual Manual 450 KB
SF2KR Series Manual Manual 1184 KB

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