{"product_id":"yokogawa-stb4s-10-pressure-clamp-terminal-block","title":"Yokogawa STB4S-10 Pressure Clamp Terminal Block","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa STB4S-10\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSTB4S-10\u003c\/strong\u003e or \u003cstrong\u003eSTB4S10\u003c\/strong\u003e, operates as a dedicated hardware field-termination component for multi-channel digital signal routing within process control and distributed control system (DCS) architectures. Configured as a slot- or panel-mounted termination assembly with integrated electrical protection elements, this unit provides direct physical execution by establishing low-resistance physical pathways for discrete field lines while filtering raw electrical inputs before they interface with upstream system logic cards.\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\u003eSTB4S-10 \/ STB4S10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eNegligible \/ Nominal physical weight profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Product Type\u003c\/td\u003e\n\u003ctd\u003ePanel Accessories \/ Terminal Block Wiring Devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Connection Type\u003c\/td\u003e\n\u003ctd\u003ePressure clamp terminal array\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget Signal Profile\u003c\/td\u003e\n\u003ctd\u003eDedicated for Digital Input (DI) modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Protection\u003c\/td\u003e\n\u003ctd\u003eBuilt-in surge absorber circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Lifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGalvanic Overvoltage Attenuation and Discrete Signal Integrity\u003c\/h3\u003e\n\u003cp\u003eThe STB4S-10 stabilizes front-end switching loops utilizing integrated, high-speed surge absorber components, restricting transient overvoltage spikes caused by inductive field switching, lightning hazards, or contact bounce on field proximity switches. By clamping external voltage surges to a safe threshold well below the dielectric limits of the system components, the board protects the optical isolators and internal processing matrices of the connected digital input modules from permanent thermal breakdown. The physical terminal paths are laid out in distinct, low-resistance copper traces that maintain standard discrete logic states without phase delay or signal cross-talk across adjacent terminal paths.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific engineering purpose does the integrated surge absorber perform on the STB4S-10 terminal assembly?\u003c\/p\u003e\n\u003cp\u003eA: The surge absorber acts as a voltage-dependent resistor (VDR\/MOV array). When an overvoltage transient enters a digital input line, the absorber rapidly transitions to a low-impedance state, diverting the high-energy spike directly to the chassis ground bar before it can penetrate and damage the upstream DCS I\/O module.\u003c\/p\u003e\n\u003cp\u003eQ: Can the pressure clamp terminals on this board be re-used multiple times with different wire gauges?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The pressure clamp design uses a spring-tension mechanism that maintains constant contact force on the wire. This configuration accommodates repeated insertion and removal of solid or stranded wires within the factory-specified gauge range without causing mechanical fatiguing or loose connections.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45054358847603,"sku":"STB4S-10","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-29_10-12-42_c3cb0628-4ea4-4a08-ae22-7b50caebd65f.png?v=1780020842","url":"https:\/\/www.dcssupplier.com\/products\/yokogawa-stb4s-10-pressure-clamp-terminal-block","provider":"DcsSupplier Limited","version":"1.0","type":"link"}