{"product_id":"1794-tb3g-allen-bradley-flex-i-o-terminal-base-unit","title":"1794-TB3G Allen-Bradley Flex I\/O Terminal Base Unit","description":"\u003ch2\u003e\n\u003cstrong\u003e1794-TB3G Flex I\/O Terminal Base Unit by Allen-Bradley\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Allen‑Bradley\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply Voltage Range:\u003c\/strong\u003e 31.2V DC\/AC, 50\/60Hz, 10A (max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Current Draw:\u003c\/strong\u003e 640 mA @ 5V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Configuration:\u003c\/strong\u003e 36 I\/O terminals + 2 common + 2 voltage + 10 chassis ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Size:\u003c\/strong\u003e 0.21 – 1.3 mm² (24–16 AWG) stranded copper, 75°C rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Thickness:\u003c\/strong\u003e 1.2 mm (3\/64 in) minimum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScrew Torque:\u003c\/strong\u003e 0.56–0.79 Nm (5–7 lb‑in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Voltage:\u003c\/strong\u003e 50V continuous (basic insulation, tested at 2121V DC for 60s)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 94 x 94 x 69 mm (H x W x D)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20 °C to 70 °C (-4 °F to 158 °F), no de‑rating required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40 °C to 85 °C (-40 °F to 185 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5–95% non‑condensing (operation and storage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock \u0026amp; Vibration:\u003c\/strong\u003e 30G shock, 5G vibration (10–500 Hz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Mounting Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e on a standard DIN rail for quick and secure installation.\u003c\/li\u003e\n\u003cli\u003eFor permanent setups, use panel mounting as an alternative method.\u003c\/li\u003e\n\u003cli\u003eHook the base over the top of the rail and slide it against the adjacent adapter.\u003c\/li\u003e\n\u003cli\u003ePush downward until the base locks firmly onto the DIN rail.\u003c\/li\u003e\n\u003cli\u003eEnsure the FlexBus connector engages properly with the host module.\u003c\/li\u003e\n\u003cli\u003eUse the grounded screw‑clamp terminals to connect field wiring with confidence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTerminal Assignment \u0026amp; Wiring Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eI\/O terminals (36 points): connect input or output signals from field devices.\u003c\/li\u003e\n\u003cli\u003eCommon terminals (2 points): provide shared return paths for circuits.\u003c\/li\u003e\n\u003cli\u003eVoltage terminals (2 points): distribute 24V DC\/AC power to the module.\u003c\/li\u003e\n\u003cli\u003eChassis ground terminals (10 points): offer dedicated grounding for noise reduction.\u003c\/li\u003e\n\u003cli\u003eUse 0.21–1.3 mm² stranded copper wire with 1.2 mm insulation for best results.\u003c\/li\u003e\n\u003cli\u003eAll terminals use screw‑clamp technology for vibration‑resistant connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental \u0026amp; Safety Ratings\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 24V AC\/DC (max 31.2V)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eCurrent Capacity:\u003c\/strong\u003e 10 Amperes (continuous)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eFlexBus Draw:\u003c\/strong\u003e 640 mA @ 5V DC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eIsolation:\u003c\/strong\u003e 50V continuous (basic insulation, 2121V DC test)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eTemperature Code:\u003c\/strong\u003e T4A (North America) \/ T4 (IEC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #c00000;\"\u003e\u003cstrong\u003eCertifications:\u003c\/strong\u003e c‑UL‑us, CSA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eFunctions without derating across the full operating temperature range.\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 1794-TB3G a genuine Allen‑Bradley product?\u003c\/strong\u003e\u003cbr\u003eYes, we supply \u003cspan style=\"color: #c00000;\"\u003e100% original, brand‑new\u003c\/span\u003e units direct from Rockwell Automation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the maximum wire gauge for this base?\u003c\/strong\u003e\u003cbr\u003eIt accepts 16 AWG (1.3 mm²) max and 24 AWG (0.21 mm²) min with 1.2 mm insulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Does this base support both DIN rail and panel mounting?\u003c\/strong\u003e\u003cbr\u003eYes, the \u003cstrong\u003e1794-TB3G\u003c\/strong\u003e supports both installation methods.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What are the operating and storage temperature limits?\u003c\/strong\u003e\u003cbr\u003eOperation: -20 °C to 70 °C; Storage: -40 °C to 85 °C – no derating needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How quickly do you ship orders?\u003c\/strong\u003e\u003cbr\u003eWe ship within 5 days via FedEx, UPS, or DHL – delivery varies by region.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What does the \"G\" in 1794-TB3G indicate?\u003c\/strong\u003e\u003cbr\u003eThe \"G\" denotes grounded screw‑clamp terminals for enhanced noise immunity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eContact Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor inquiries, please email \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e or call \u003ca href=\"https:\/\/wa.me\/8615392429628\" target=\"_blank\"\u003e+86 153 9242 9628\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003ePartner: \u003ca href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003eNexAuto Technology Limited\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46592666534049,"sku":"1794-TB3G","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/1794-TB3G.jpg?v=1782201868","url":"https:\/\/www.autonexcontrol.com\/products\/1794-tb3g-allen-bradley-flex-i-o-terminal-base-unit","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}