{"product_id":"tu831v1-abb-extended-mtu-250v-3a-terminal-block-i-o-module","title":"TU831V1 ABB Extended MTU 250V 3A Terminal Block I\/O Module","description":"\u003ch2\u003e\n\u003cstrong\u003eABB TU831V1 Extended MTU\u003c\/strong\u003e – 8-Channel I\/O Terminal Block\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ABB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eTU831V1\u003c\/strong\u003e (Extended MTU)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 8 (2 terminals per channel, total 16 process connections)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 250 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Current per Channel:\u003c\/strong\u003e 3 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDielectric Test Voltage:\u003c\/strong\u003e 2000 V a.c.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Sizes:\u003c\/strong\u003e Solid 0.2–6 mm² \/ Stranded 0.2–4 mm² (24–10 AWG)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Torque:\u003c\/strong\u003e 0.5–0.6 Nm; Stripping length: 7 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e 0 to +55 °C (+32 to +131 °F) – approvals at +5 to +55 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40 to +70 °C (-40 to +158 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20 (IEC 60529)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePollution Degree:\u003c\/strong\u003e 2 (IEC 60664-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Protection:\u003c\/strong\u003e ISA-S71.04 G3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative Humidity:\u003c\/strong\u003e 5–95 % non-condensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x D x H):\u003c\/strong\u003e 126 x 64 x 110 mm (including connectors)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.22 kg (0.48 lbs)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail, both directions, with mechanical latch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications:\u003c\/strong\u003e CE, UL 61010-1, EN 61010-1, marine (ABS, BV, DNV-GL, LR), RoHS, WEEE\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the TU831V1 compatible with redundant I\/O configurations?\u003c\/strong\u003e\u003cbr\u003eA: No, this extended MTU supports single I\/O only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the maximum ambient temperature for operation?\u003c\/strong\u003e\u003cbr\u003eA: The TU831V1 operates reliably up to +55 °C (+131 °F).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can I use this MTU with other ABB I\/O modules besides DI820\/DO820?\u003c\/strong\u003e\u003cbr\u003eA: Mechanical keying limits it to DI820, DI821, DO820, and DO821 – other modules will not fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What wire gauge does the terminal block accept?\u003c\/strong\u003e\u003cbr\u003eA: It accepts solid wire 0.2–6 mm² and stranded wire 0.2–4 mm² (24–10 AWG).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the TU831V1 suitable for marine environments?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it holds marine certifications from ABS, BV, DNV-GL, and LR.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Do you offer a return policy?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we accept returns within 30 days of delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How do I ground the MTU?\u003c\/strong\u003e\u003cbr\u003eA: The latching device on the DIN rail provides automatic grounding when properly mounted.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size: 0.9rem; margin-top: 20px;\"\u003e© 2026 NexAuto Technology Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":48245049000194,"sku":"TU831V1","price":246.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/ABB_TU831V1.jpg?v=1785738881","url":"https:\/\/www.nex-auto.com\/products\/tu831v1-abb-extended-mtu-250v-3a-terminal-block-i-o-module","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}