{"product_id":"allen-bradley-1492-h4-fusible-terminal-block","title":"Allen-Bradley 1492-H4 Fusible Terminal Block","description":"\u003ch1\u003eAllen-Bradley 1492-H4 Fusible Terminal Block\u003c\/h1\u003e\n\u003cp\u003eConfigured for single-circuit fuse protection and visual status indication in industrial control panels, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1492-H4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e1492-H4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFusible Terminal Block) provides direct physical and electrical execution of safe wiring connections across 1492-H series assemblies.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 1492-H4 is a specific variant within the 1492-H series:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eH4\u003c\/strong\u003e: Single-pole, screw-type fuse terminal block with neon blown fuse indicator.\u003cbr\u003eNo further alphanumeric suffix decomposition is provided by the manufacturer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\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\u003e1492-H4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.05 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e47 × 9.1 × 81.3 mm (Depth × Width × Height)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +90 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e≤2 mA (Neon indicator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e300 V AC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Range\u003c\/td\u003e\n\u003ctd\u003e#30…12 AWG (0.05–4 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Strip Length\u003c\/td\u003e\n\u003ctd\u003e9.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTightening Torque\u003c\/td\u003e\n\u003ctd\u003e0.3–0.8 N·m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator Type\u003c\/td\u003e\n\u003ctd\u003eNeon blown fuse indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Size\u003c\/td\u003e\n\u003ctd\u003e1\/4 × 1-1\/4 in or 5 × 20 mm (not supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePolyamide 6.6, UL 94-V0 self-extinguishing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd\u003e25 units\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCSA, IEC, CE marked, UL recognized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eI\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003e1492-H4 blocks support high-density panel layouts with compact spacing between terminal rows. Screw-type terminals maintain secure conductor retention while enabling modular expansion. Neon indication allows immediate visual verification of fuse status without interrupting circuit operation. Conductor routing must preserve finger-safe spacing to comply with IEC and CSA standards. Backplane bus or jumper connections should observe torque and wire gauge specifications for optimal electrical integrity.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1492-H4 be installed on standard DIN rails?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, it is compatible with both steel and aluminum symmetrical DIN rails. Ensure full rail engagement for mechanical stability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the neon indicator polarity-sensitive?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNeon indicators are designed for AC circuits; correct orientation must be verified during installation to ensure proper operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can multiple 1492-H4 blocks be connected in series with jumpers?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, screw-type or plug-in jumpers can be used, respecting current rating limits and maintaining finger-safe spacing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eMount the block securely on a symmetrical DIN rail and confirm mechanical engagement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstall end barriers (1492-N37) at the row edges to maintain finger-safe separation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eStrip wires to 9.7 mm and tighten terminals to 0.3–0.8 N·m to ensure secure electrical contact without damaging the polyamide housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify neon indicator orientation and wire polarity before energizing circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain minimum spacing between adjacent terminals for compliance with CSA and IEC insulation requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse snap-in marker cards (1492-MS8X12, 1492-MS8X9) for proper identification of circuits. \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43438593769562,"sku":"1492-H4","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1492-H42.jpg?v=1780286001","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1492-h4-fusible-terminal-block","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}