{"product_id":"siemens-sentron-5tt3-fuse-phase-monitors","title":"Siemens 5TT3 Fuse, Phase and Phase Sequence Monitors","description":"\u003cp class=\"ps-intro\"\u003eSiemens 5TT3 monitors supervise low-voltage fuses, the presence of three phase voltages and the phase sequence in three-phase systems.\u003c\/p\u003e\u003ch4 class=\"ps-h\"\u003eKey features\u003c\/h4\u003e\u003cul class=\"ps-feat\"\u003e\n\u003cli\u003e5TT3170 fuse monitor for all low-voltage fuse systems, also for disconnected loads\u003c\/li\u003e\n\u003cli\u003e5TT3421 phase monitor with 3 green LEDs for 3 phases\u003c\/li\u003e\n\u003cli\u003e5TT3423 phase sequence monitor, LED lights for right-rotating field\u003c\/li\u003e\n\u003cli\u003eRated operational voltage 250 V AC, 4 A contacts\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\u003eRated operational voltage\u003c\/th\u003e\n\u003ctd\u003e250 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated operational current\u003c\/th\u003e\n\u003ctd\u003e4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandards\u003c\/th\u003e\n\u003ctd\u003eIEC 60255, DIN VDE 0435\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTerminals\u003c\/th\u003e\n\u003ctd\u003eScrew (PZ 1)\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\u003eSource\u003c\/th\u003e\n\u003ctd\u003eSiemens Catalog LV 10 · 2026, p. 875-877\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\u003e5TT3421\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eDevice: Phase monitor, 3 green LEDs | Control voltage: 230\/400 V AC | Contacts: 1 CO | Width: 1 MW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5TT3423\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eDevice: Phase sequence monitor, 1 green LED | Control voltage: 400 V AC | Contacts: 1 CO | Width: 1 MW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67535331688738,"sku":"5TT3421","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/0744\/7586\/files\/siemens-sentron-5tt3-fuse-phase-monitors.jpg?v=1792150051","url":"https:\/\/prosourcemro.com\/products\/siemens-sentron-5tt3-fuse-phase-monitors","provider":"ProSource MRO","version":"1.0","type":"link"}