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Electric Switch Lock – Introduction

          BEST offers a line of electric switch locks available in various “on-off” and “mo men tary” keyed switch func tions.
          Circuitry vari a tions are available in single, double and triple pole with varied voltage and amperage ratings. Units may be keyed into any BEST   ®
          system. The BEST in ter change able core offers ver sa til i ty and adapt abil i ty for new and existing electrical controls, panels, machines, etc.
          Features
          •  Double D lock cylinder prevents slipping and turning
          •  Screw terminals on all switch locks (except the 1W7A1) provides ease of installation
          •  All switches are UL recognized or listed
          Note on functionality: Switch lock keys can only be removed in the 12 o’clock position.
          How to select a switch lock
          1. Determine the electrical requirements for the device being controlled:
             A. Voltage (for example: 115 VAC or 24 VDC)
             B. Current or horsepower (for example: 6 amps or 1/2 horsepower)
             C. Type of load
               •  Resistive (for example, heat er elements)
               •  Inductive (for example, mo tors, large transformers)
               •  Lamp (for example, in can des cent lights)
          2. Determine the switch configuration (poles and throws) and key re mov al condition:
             A.  Poles To determine the number of poles, find how many wires from the power source need to be switched on and off
               by the switch lock.
             B.  Throws To determine the number of throws, find how many wires to the device the switch needs to control. For example, if a switch needs
              two different “on” conditions (low and high speed), two throws are needed. Or if the device is simply an “on-off” type (only one wire), you
              need one throw.
              NOTE: A switch throw may be left unwired and used as an “off” condition.
             C.  Key removal To determine the key removal condition, ask the question, “When the key is removed, should the switch be “off”, or    could
              the switch be either “on” or “off” ?” Although the key can only be removed in the 12 o’clock position, the switch itself may be left in two or
              three positions. Check each switch lock for key removal switch positions.
          3. Use the information collected and find the switch lock that best meets the requirements. Refer to the following catalog pages for a
          de scrip tion of each switch lock. If en vi ron men tal conditions make it necessary that the switch lock be housed in an electrical box, see
          the Optional boxes below for the box that best suits the switch lock and your application.
          Optional Boxes















          OC1                       OC2                           INT                    SWR
          Standard octagon          Deep octagon                  Interior box           Standard weather
          3 1/2” x 3 1/2” x 1 5/8”   3 1/2” x 3 1/2” x 3 1/4”     4” x 2 1/8” x 1 7/8”   resistant box
                                                                                         4 5/8” x 2 7/8” x 3”

          How To Order – 1W Electric Switch Lock

           1W       7                 B1           626         SWR
           Series   Core Housing      Func tion    Finishes    Box
           1W       7–7 pin housing accepts all   see pages 15–19  605  606  OC1
                    BEST  cores                    611  612    OC2
                       ®
                                                   613  619    INT
                                                   622  625    SWR
                                                   626  690

            14         W & M Series IDH MAX  & Electromechanical Locks
                                     ®
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