{"product_id":"abb-chbx01l-2vaa008574r10001-compact-bus-extension-terminal-block","title":"ABB CHBX01L 2VAA008574R10001 Compact Bus Extension Terminal Block","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB CHBX01L 2VAA008574R10001\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eCHBX01L\u003c\/strong\u003e Compact Bus Extension Terminal Block, operates as a dedicated hardware component for HN800 bus extension and power distribution within ABB Compact Products 800 DCS platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eCHBX01L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArticle Number\u003c\/td\u003e\n\u003ctd\u003e2VAA008574R10001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eABB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSweden\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eCompact (127 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Orientation\u003c\/td\u003e\n\u003ctd\u003eHorizontal Row\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHN800 Bus Length\u003c\/td\u003e\n\u003ctd\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Redundancy\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot Swap Capability\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Operating Current\u003c\/td\u003e\n\u003ctd\u003e3.0 A @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Power Connection\u003c\/td\u003e\n\u003ctd\u003e4-point Terminal Block (L+, L-, SA, SB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcceptable Signal Wire Sizes\u003c\/td\u003e\n\u003ctd\u003e#18 AWG to #12 AWG (Stranded or Solid)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 V for up to 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage Category\u003c\/td\u003e\n\u003ctd\u003eCategory 1 (Power, IEC\/EN 61010-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x D x H)\u003c\/td\u003e\n\u003ctd\u003e45 mm x 106 mm x 137 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e198 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMean Time Between Failures (MTBF)\u003c\/td\u003e\n\u003ctd\u003e10,458,715 hours (PR: A per MIL-HDBK-217-FN2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMean Time To Repair (MTTR)\u003c\/td\u003e\n\u003ctd\u003e8 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHN800 Bus Extension \u0026amp; System Integration Attributes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication \u0026amp; Extension Velocity:\u003c\/strong\u003e Integrated into the HN800 deterministic backplane bus environment, providing 90 mm bus interconnectivity to extend signal lines seamlessly between adjacent horizontal rows without signal degradation or timing jitter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGalvanic Isolation \u0026amp; Overvoltage Protection:\u003c\/strong\u003e Rated for Category 1 overvoltage compliance under IEC\/EN 61010-1 standards, withstanding high-potential galvanic isolation test voltages up to 1500 V for 1 minute across power rail interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Line Redundancy Execution:\u003c\/strong\u003e Built-in line redundancy architecture supports dual-channel signal paths, providing physical signal path separation and system fault tolerance across industrial I\/O backplanes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Distribution Topology:\u003c\/strong\u003e Features a dedicated 4-point field terminal block (L+, L-, SA, SB) rated for 3.0 A @ 24 VDC continuous throughput, supporting field conductor wiring cross-sections from #18 AWG to #12 AWG.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the ABB CHBX01L module be hot-swapped during active backplane operation?\u003c\/p\u003e\n\u003cp\u003eA: No. The CHBX01L does not support hot-swapping. System power and field power buses must be completely de-energized prior to inserting or removing the module to prevent electrical arcing and backplane communication interruption.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum continuous current rating for the field power terminal block on the CHBX01L?\u003c\/p\u003e\n\u003cp\u003eA: The 4-point field power terminal block (L+, L-, SA, SB) is rated for a maximum continuous current of 3.0 A @ 24 VDC using field signal wire sizes ranging from #18 AWG to #12 AWG.\u003c\/p\u003e\n\u003cp\u003eQ: How does the CHBX01L handle galvanic isolation across its bus and power interfaces?\u003c\/p\u003e\n\u003cp\u003eA: The module is factory tested to withstand a dielectric isolation voltage of 1500 V for up to 1 minute, compliant with IEC\/EN 61010-1 Overvoltage Category 1 standards.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting \u0026amp; Mechanical Alignment:\u003c\/strong\u003e Mount the CHBX01L vertically on standard DIN-rail in a horizontal row layout. Align the 90 mm HN800 bus connector with the adjoining backplane base to ensure flush physical engagement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Off Verification:\u003c\/strong\u003e Verify that all 24 VDC field supply voltages and backplane system power sources are shut off before installation, as hot insertion is strictly prohibited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Wiring Termination:\u003c\/strong\u003e Strip conductors to recommended length and terminate #18 AWG to #12 AWG solid or stranded copper wires to the 4-point terminal block (L+, L-, SA, SB). Torque terminal screws according to standard cabinet assembly specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding \u0026amp; Shielding Protocol:\u003c\/strong\u003e Connect all cable shields to designated cabinet earth ground bars via low-impedance grounding clamps. Keep signal leads isolated from high-voltage AC power lines to avoid electromagnetic interference.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45303728898163,"sku":"CHBX01L 2VAA008574R10001","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-08-04_15-36-50_1200x1200_5baedf51-0380-4ea1-bdec-5ab33cab23a2.jpg?v=1785831525","url":"https:\/\/www.dcssupplier.com\/ar\/products\/abb-chbx01l-2vaa008574r10001-compact-bus-extension-terminal-block","provider":"DcsSupplier Limited","version":"1.0","type":"link"}