{"product_id":"siemens-sentron-5tt3-insulation-monitors","title":"Siemens 5TT3 Insulation Monitors for IT Systems (AC\/DC)","description":"\u003cp class=\"ps-intro\"\u003eSiemens 5TT3 insulation monitors protect persons and prevent fire in non-grounded (IT) systems by monitoring insulation resistance.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003e5TT3470 for 3-phase and AC systems 0-500 V AC, alarm value 5-100 kOhm\u003c\/li\u003e\n\u003cli\u003e5TT3471 for direct-voltage systems 12-280 V DC, alarm value 5-200 kOhm\u003c\/li\u003e\n\u003cli\u003e2 CO contacts, infinitely variable alarm value setting\u003c\/li\u003e\n\u003cli\u003eDegree of protection IP20 terminals \/ IP40 enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4 class=\"ps-h\"\u003eSpecifications\u003c\/h4\u003e\u003ctable class=\"ps-kv\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e5TT3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContacts\u003c\/th\u003e\n\u003ctd\u003e2 CO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e2 MW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTerminals\u003c\/th\u003e\n\u003ctd\u003eScrew (PZ 2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd\u003e-20 to +60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSource\u003c\/th\u003e\n\u003ctd\u003eSiemens Catalog LV 10 · 2026, p. 878\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ctable class=\"ps-src\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5TT3470\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem: AC IT systems | Measuring voltage: 0-500 V AC | Measuring range: 5-100 kOhm | Supply: 230 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5TT3471\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem: DC IT systems | Measuring voltage: 12-280 V DC | Measuring range: 5-200 kOhm | Supply: 12-280 V DC (from system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67535331721506,"sku":"5TT3470","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-sentron-5tt3-insulation-monitors.jpg?v=1792150051","url":"https:\/\/prosourcemro.com\/products\/siemens-sentron-5tt3-insulation-monitors","provider":"ProSource MRO","version":"1.0","type":"link"}