Clipsal Pro Switch Mechanism 1-Way, Double Pole, 250V, 20AX

Clipsal Pro Switch Mechanism 1-Way, Double Pole, 250V, 20AX

Clipsal Pro Switch Mechanism 1-Way, Double Pole, 250V, 20AX

Item Number: P40MD20

RRP (Inc. GST)

Rated for heavier duty switching, the 20AX, 250V Clipsal Pro Series Double Pole switch is designed for control of two circuits with the one switch. The one way switch mechanism has a gloss finish and can be fitted with a range of pictograms to identify use.

Product Dimensions

Width icon

Width23 mm

Height icon

Height23 mm

Depth icon

Depth33 mm



Qty UoM EAN Colour




Pro Series

Product or component type



Quantity per set

set of 20

Device presentation


Control type


Switch function

2-pole 1-way

Rated current

20 A

[Ue] rated operational voltage

250 V

Fixing mode

by clips

Connections - terminals

screw terminal

Clamping connection capacity

  • 1 x 1.5...4 x 1.5 mm² for rigid or stranded cable(s)
  • 3 x 2.5 mm² for stranded cable(s)
  • 1 x 4 mm² for stranded cable(s)
    • Height

      23 mm


      23 mm


      33 mm

      Net weight

      0.016 kg

      Ambient air temperature for operation

      0-45 °C

      Relative humidity

      10-95 %

      Product certifications




    • PC (polycarbonate)
    • PA66
    • ABS (acrylonitrile butadiene-styrene)
      • Documents & downloads

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        Frequently Asked Questions

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        Is 40MD20 double pole, single throw switch mechanism?

        Yes, 40MD20 is an Iconic double pole single throw switch mechanism rated to 20AX, 250V, 1 way.
        For further information, please visit https://www.clipsal.com/Trade/Products/ProductDetail?catno=40MD20

        Is the 30MD20 double pole double throw?

        No, the 30MD20 is a double pole single throw.
        The 30MD2 is a double pole double throw switch, however it has a 10A rating.

        Some of the key features are:
        • 6 terminal bores of 4.1 mm diameter accommodate 4 x 1.5 sq mm or 3 x 2.5 sq mm cable
        • Motor rating is 75

        For further information please visit https://www.clipsal.com/Trade/Products/ProductDetail?catno=30MD2


        Can a Clipsal 30MD20 be used as a changeover switch?

         No - It is just a 2 pole switch
        But a 30MD2 is a 2p 2way (6 terminals)

        What is the part number for a conduit bending spring

        266MD20 - for 20mm medium duty conduit.
        266MD25 - for 25mm medium duty conduit.

        How do I hardwire 10kva and 20kva transformers in a 208/120 or 240/120 environment

        Implementing a hardwire stepdown transformer in a 208v or 240v environment

        Product Line:

        Smart-UPS / Symmetra


        APTF10KT01, APTF10KW01, and APTF20KW01, All Serial Numbers


        Unbalanced UPS outputs require a stepdown transformer to power 120v loads


        This document refers to installing  the APTF10KT01, APTF10KW01, and APTF20KW01 transformers in a North American 120/240 or 120/208 environment. For installations in other regions please consult the users manual.

        The wiring block outputs are as follows:

        For domestic use, make sure that the Terminal Block Jumper is installed between the Ground Terminal and Terminal 8 on the output wiring block, as illustrated on page 8 of the user manual. Please also make sure that the input voltage switch is in the correct position.

        The step-down transformer provides 240/120 output as 2 120v hots, a neutral, and a ground. It provides 208v output as a 120v hot, an 88v hot, and a ground. The 120v hot (terminal  7) and the 88v hot (terminal 9) are 180 degrees out of phase. You will measure 208v from terminals 7 to 9. The step-down transformer is not able to provide 2 120v hots that are 120 degrees out of phase as you would see with utility power.

         Note: If your installation requires both 208v and 120v output power you will need 2 separate subpanels: a 240v/120v panel and a dedicated 208v subpanel.