Test with a multimeter

Toggle switch

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Now: Lever down: common to outer terminal 1

CircuVanta 6000 counts · auto range DCAUTO•)))HOLDFUSE− HOLD LIGHT OFFV⎓V~Ω•)))FmA⎓ mA400 mACOMVΩ Outer terminal 1 1 Common terminal (middle) 2 COM Outer terminal 3 3
Pin 1: Outer terminal 1 (1) Pin 2: Common terminal (middle) (COM) Pin 3: Outer terminal 3 (3)

Red probe Not connectedBlack probe Not connected

Hold the probe and drag it to the tip of a leg. Tapping works too: first pick the probe, then the leg.

Set the range to continuity.

Measure step by step

The middle terminal of a toggle switch is the common one: with the lever down, the outer terminal connects to 1; with the lever up, the outer terminal connects to 3. With the continuity range you find out which pair is connected.

Disconnect the switch from the circuit before measuring; do not use the continuity range in a circuit under voltage. The value written for the contacts is for mains voltage; this app does not measure mains.

  1. 1Lever down: common to outer pin 1
  2. 2Lever down: common to outer pin 3
  3. 3Lever up: common to outer pin 3
  4. 4Lever up: common to outer pin 1