Allen-Bradley Limit Switch Installation Instructions

The Allen-Bradley Limit Switch is a reliable and durable device designed for various industrial applications. It provides precise switching capabilities and incorporates features ensuring safe and accurate operation. The switch is designed for both side lever and side push rod operation, offering flexibility for different mounting configurations. Ensure power is disconnected from the switch and controlled equipment before performing any repairs or adjustments.

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Allen-Bradley Limit Switch Installation Instructions | Manualzz

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Key features

  • Two Pole Vertical Construction
  • Maintained Contact
  • Side Lever & Push Rod Operation
  • Adjustable Operating Head
  • Mechanical Over Center
  • Precise Switching

Frequently asked questions

Turn the adjustment screw on the new operating head inward, or clockwise, until it can turn no further. Then, turn the adjustment screw outward, or counter clockwise, one complete turn for side lever operation or two complete turns for side push rod operation. This will ensure the operating head mechanism goes over center mechanically in both directions before the switch contacts operate. If the switch does not operate properly, adjust the screw in 1/3 turn increments.

The mechanical over center position is the point at which the shaft cannot return toward its initial position without the aid of an external force. This ensures that the limit switch operates precisely at the desired point.

This means that the switch contacts remain closed after the operating head actuates until the switch is reset. The contacts will open and remain open until the head is actuated again. This is different from a momentary contact switch, where the contacts only close when the operating head is actuated and open again when the head is released.
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