{"product_id":"3bsc840157r1-abb-tu891-module-termination-unit","title":"3BSC840157R1 | ABB TU891 Module Termination Unit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe ABB TU891 (Part Number: 3BSC840157R1) is a compact, single Module Termination Unit (MTU) designed for the S800 I\/O platform. It functions as a non-redundant, passive interface baseplate engineered specifically to host Intrinsically Safe (IS) S800 I\/O modules, providing a safe transition between hazardous field environments and the control system backbone.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Type: Module Termination Unit (MTU) for Non-Redundant IS Configuration\u003c\/li\u003e\n\u003cli\u003eModel Code: TU891\u003c\/li\u003e\n\u003cli\u003ePart Number: 3BSC840157R1\u003c\/li\u003e\n\u003cli\u003eManufacturer: ABB\u003c\/li\u003e\n\u003cli\u003eSystem Compatibility: S800 I\/O \/ S800L I\/O Systems\u003c\/li\u003e\n\u003cli\u003eChannel \/ Module Capacity: Single-slot layout for non-redundant Intrinsically Safe I\/O modules\u003c\/li\u003e\n\u003cli\u003eMaximum Rated Voltage: 50 V\u003c\/li\u003e\n\u003cli\u003eTerminal Connection Type: Compression screw terminal block architecture\u003c\/li\u003e\n\u003cli\u003eIngress Protection Rating: IP20 (IEC 60529 Compliant)\u003c\/li\u003e\n\u003cli\u003eHazardous Location Ratings: ATEX \/ IECEx Zone 2 Compliant (when paired with approved IS modules)\u003c\/li\u003e\n\u003cli\u003eConformal Coating: Yes (ISA-S71.04 Class G3 Compliant for harsh gas resistance)\u003c\/li\u003e\n\u003cli\u003ePhysical Dimensions: 18.6 cm x 6.2 cm x 4.7 cm\u003c\/li\u003e\n\u003cli\u003eProduct Net Weight: 0.23 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSnap the TU891 MTU securely onto a standard 35 mm metallic DIN rail until the structural grounding clips click into place.\u003c\/li\u003e\n\u003cli\u003eConfigure the mechanical keying locks on the MTU surface to match the specific structural profile of the target S800 I\/O module before mounting it.\u003c\/li\u003e\n\u003cli\u003eTerminate field sensor pairs and loop wiring into the dedicated compression terminals, ensuring correct wire stripping length to preserve the IP20 finger-safe rating.\u003c\/li\u003e\n\u003cli\u003eMaintain strict physical separation between the intrinsically safe field wiring connected to this MTU and any non-intrinsically safe wiring within the same enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":53620848328888,"sku":"TU891","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/TU891_2.png?v=1782208113","url":"https:\/\/www.globalpetroparts.com\/products\/3bsc840157r1-abb-tu891-module-termination-unit","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}