{"product_id":"kj4010x1-bc1-emerson-deltav-2a-terminal-block-fuse-new-stock","title":"KJ4010X1-BC1 Emerson DeltaV 2A Terminal Block Fuse | New Stock","description":"\u003ch2\u003eEmerson KJ4010X1-BC1 DeltaV Terminal Block Fuse\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEmerson KJ4010X1-BC1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eKJ4010X1-BC1\u003c\/strong\u003e Fuse, operates as a dedicated hardware component for overcurrent circuit protection within DeltaV terminal block assemblies. The device functions to interrupt current flow upon exposure to sustained overcurrent conditions or short-circuit faults exceeding the nominal 2 A threshold, isolating downstream logic cards from field electrical anomalies.\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\u003eKJ4010X1-BC1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eEmerson\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.67 kg (Per pack of 20)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eData not specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eData not specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003ePassive (Negligible internal insertion resistance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Rating\u003c\/td\u003e\n\u003ctd\u003e250 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e20 fuses per pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Type\u003c\/td\u003e\n\u003ctd\u003eOvercurrent protection cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; DCS Instrumentation Properties\u003c\/h3\u003e\n\u003cp\u003eThe Emerson KJ4010X1-BC1 functions as a hardware-level isolation layer within the 4-20 mA HART loop protocol physical interface or discrete I\/O loop. The device characteristics ensure that external field-wiring faults—such as field transmitter short-circuits or accidental voltage cross-talk—are contained at the termination block before the fault current can damage the channel-to-channel isolation circuits of the mated DeltaV I\/O module. The low insertion impedance minimizes voltage drop across the terminal connection, ensuring that nominal loop power supply levels are maintained and that high-frequency HART FSK communication signals pass through the circuit without attenuation.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the KJ4010X1-BC1 fuse cartridge be extracted while the I\/O loop is actively powered?\u003c\/p\u003e\n\u003cp\u003eA: Yes, pulling the fuse cartridge splits the physical connection to the field circuit. However, removing the fuse from an active loop immediately drops the channel current to 0 mA, causing the control system to log an open-loop diagnostic fault for that specific channel.\u003c\/p\u003e\n\u003cp\u003eQ: What are the consequences of replacing an open KJ4010X1-BC1 fuse with a standard commercial fast-acting 2 A fuse?\u003c\/p\u003e\n\u003cp\u003eA: While the 2 A and 250 V ratings may match, the physical dimensions and exact clear-time characteristics must comply with DeltaV terminal block specification profiles. Utilizing unapproved fuses can introduce variable contact resistance or inadequate clearing latencies, compromising protection against backplane overcurrent damage.\u003c\/p\u003e\n\u003cp\u003eQ: Does an open fuse on a redundant I\/O termination assembly cause the companion secondary channel to drop offline?\u003c\/p\u003e\n\u003cp\u003eA: No, on redundant termination assemblies, each parallel physical path features separate overcurrent fusing. An open fuse on the primary path shunts the loop tracking logic entirely to the secondary path, preserving continuous I\/O status reporting to the controller.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Block Insertion Mechanics\u003c\/strong\u003e: Prior to insertion, verify that the fuse holder assembly is free of loose debris or oxidation. Seat the KJ4010X1-BC1 cartridge straight into the fuse clip terminal using an insulated fuse-puller tool to guarantee uniform mechanical contact pressure on both metal end-caps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Replacement Loop Validation\u003c\/strong\u003e: Before replacing an open fuse, verify field circuit loop impedance with a digital multimeter to confirm that the root cause overcurrent or dead short condition has been cleared. Applying power to a faulted loop will instantly blow the replacement component.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeparation of Field Cabling\u003c\/strong\u003e: Ensure that field wires connected to the fused terminal blocks maintain proper physical separation from high-voltage AC distribution circuits to prevent inductive spikes from cycling the 2 A fast-clearing element unnecessarily.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":43829416820835,"sku":"KJ4010X1-BC1","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/76_4709b12c-d5e8-4ffd-8bd2-6bd718a6a21f.jpg?v=1762767886","url":"https:\/\/www.autocontrolglobal.com\/products\/kj4010x1-bc1-emerson-deltav-2a-terminal-block-fuse-new-stock","provider":"AutoControl Global","version":"1.0","type":"link"}