Rockwell Automation 440G-LZS 21SPx, 21SPRx, 21STLx, 21STRx, 21UPLx, 21UPRx, 21UTLx, 21UTRx Guard Locking Switch User Manual

Below you will find brief information for Guard Locking Switch 440G-LZS 21SPx, Guard Locking Switch 440G-LZS 21SPRx, Guard Locking Switch 440G-LZS 21STLx, Guard Locking Switch 440G-LZS 21STRx, Guard Locking Switch 440G-LZS 21UPLx. This device is designed for use on guards that are engineered to be rigid without sag. A separately mounted latch (for example, magnetic or mechanical) and mechanical stop are required. It can be used on Full Body Access guards that do not require escape release, emergency release, or remote release guards. It can also be used in any situation where the alignment tolerance falls within the stated specification.

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Guard Locking Switch 440G-LZS 21SPx, 21SPRx, 21STLx, 21STRx, 21UPLx User Manual | Manualzz

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Key features

  • RFID coding detects the appropriate actuator.
  • The locking bolt drive mechanism uses a bi-stable solenoid.
  • The device consumes little electrical power.
  • It does not produce heat whether in its locked or unlocked condition.
  • The device logic and functionality are configured to replicate the functionality of a Power to Release or Power to Lock solenoid-operated switch.
  • The 440G-LZ is rated for IP69 in accordance with IEC 60529:192 + A2:2013.
  • The 440G-LZ is used in CIP (clean-in-place) applications.

Frequently asked questions

The 440G-LZ guard locking switch functions by extending a locking bolt from the switch through a hole in the actuator, which prohibits the opening of a guard.

The Guardmaster® 440G-LZ satisfies applicable requirements in the following standards that are related to functional and machinery assembly: IEC 60947-5-1: 2003+A1: 2009, IEC 60947-5-3: 1999/A: 2005, IEC 61508:2010 SIL 3, IEC 62061:2005 SIL 3, EN ISO 13849-1:2008/AC: 2009 Performance Level e (PLe), Category 4, EN ISO 14119:2013, and UL 508 17th Edition dated 3/19/2013.

The 440G-LZ guard locking switch is designed for use on guards that are engineered to be rigid without sag. A separately mounted latch (for example, magnetic or mechanical) and mechanical stop are required. It can be used on Full Body Access guards that do not require escape release, emergency release, or remote release guards. It can also be used in any situation where the alignment tolerance falls within the stated specification.

There are three ways to achieve proper alignment. 1. By setting gap “G” 2.5 mm (0.09 in.) [0…5 mm (0…0.19 in.)] 2. By mounting hole alignment ”H” 6.5 mm (0.25 in.) [4…9 mm (0.15…0.35 in.)] 3. Use the alignment guide provided
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