MODEL-20-39B Mercury Tilt Switch MODEL-20-39B Mercury Tilt Switch MODEL-20-39B Mercury Tilt Switch Models: ST-20, ST-20P, 20-39, 20-39-25, HNST-KG, MFFP20-30ST, 20-321AMP Tilt Switch  When the tilt switch of the vertical suspension is subjected to external force and deviates from the vertical position by more than 15 degrees, the internal contacts of the switch will act, and the normally closed contacts will open (or the normally open contacts will close). After the external force is removed, the tilt switch returns to the vertical state, and the contacts close (or open) again. Use the 20-321AMP tilt switch and level gauge to accurately determine the working condition of the equipment based on the changes in the opening and closing of internal contacts, in order to take timely measures and protect the equipment. Mercury tilt switch MODEL-20-39B· Action angle; Approximately 17 degrees· Contact composition; Normally Closed Contact· Contact capacity; 24VDC/220  VAC· Protection level; IP67· Shell: Cast iron structure, surface plated with nickel chromium alloy; PSN30-10DP3  PSN30-10DP2  PSN30-10DP  PSN30-10DN2  PSN30-10DN3  PSN30-10DN  PSN5AC  PSN25-5AO  PSN25-5DC  PSN25-5DO  PSN25DP3  PSN25-5DP  PSN25-5DN3  PSN25-5DN2  PSN25-5DN  PS12-4AC  PS12-4AO  PS12-4DC  PS12-4DO  PS12-4DP  LXU1-115G2  LXU1-115G