Surface Switch, 1 Gang, 4 Pole, 440VAC, 20A, Hoseproof, M100 Rating

Resistant Grey | Surface Switch, 1 Gang, 4 Pole, 440VAC, 20A, Hoseproof, M100 Rating

Surface Switch, 1 Gang, 4 Pole, 440VAC, 20A, Hoseproof, M100 Rating

Item Number: WHB420-RG

RRP (Inc. GST)
Colour Resistant Grey (RG)
  • Resistant Grey 1 PCE



Qty UoM EAN Colour



Product brand


Range of product


Sustainable offer status

Green Premium product


Fixing mode

by screws

Device mounting



  • AS 60529
  • AS/NZS 60947-3
  • IEC 60669-1
  • AS/NZS 3947-3:approval number S/1
    • REACh free of SVHC


      EU RoHS Directive


      Toxic heavy metal free


      Mercury free


      RoHS exemption information


      China RoHS Regulation

       Pro-active China RoHS declaration (out of China RoHS legal scope)

      Environmental Disclosure



      Package 1 Weight

      557 g

      Package 1 Height

      85 mm

      Package 1 width

      100 mm

      Package 1 Length

      175 mm
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      Frequently Asked Questions

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      What is the replacement for the Clipsal WHT20 surface switch?

      WHB320 Surface Switch -  Weather Protected, Surface Switches - WHB Series - Weathershield - IP66, Switch 500V 20A - triple pole

      WHB320 can you get the mech only as a part

      No you will need to replace the unit

      Is base on part numbers WHC363 & WHC480 the same?

      Yes. The base is the same for the part numbers WHC480 & WHC363.

      Would the whb320 be suitable to be used in a spray painting environment?

      No it is a hazardous area, it needs to be "explosion proof". the fumes may ignite when the switch is flicked on by the arc between contacts which could cause a fire.

      What is the replacement for part no WHT20

      Part no WHT20 has been replaced with WHB320

      for more information on this part please refer to

      User-added image

      Is WHB340 available with 32mm conduit entries?

      WHB range of isolators have dual 25mm screwed conduit entries top and bottom (up to 55 amp.) Allows four ways to surface wire the switch. 55 Amp. and above are also available with
      32mm entries top and bottom. Example WHB355/32 IP66, 440V 55A  triple pole with 32mm conduit entries.
      For further information, please refer to the below link:
      User-added image

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