{"product_id":"analog-terminal-relay-output-module-yokogawa-srm53d-000-br4","title":"Analog Terminal Relay Output Module | Yokogawa SRM53D-000\/BR4","description":"\u003ch2\u003eYokogawa SRM53D-000\/BR4 Analog Terminal Board\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SRM53D-000\/BR4\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eSRM53D\u003c\/strong\u003e Relay Output Module, operates as a dedicated hardware component for discrete loop isolation and digital output execution within industrial distributed control system networks. Configured for high-availability signal conditioning, the module provides direct interface routes between sensitive system logic buses and heavy field actuators.\u003c\/p\u003e\n\u003ch3\u003eLayout Configuration Selection: Layout 1\u003c\/h3\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\u003eSRM53D-000\/BR4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation\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\u003e5.0 kg shipping weight (0.35 kg net assembly weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 19-inch rack-mountable physical enclosure envelope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e3.5 W nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e8 x 2 dry contact output architecture with built-in safety relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e32 mechanical relay output channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contact Type\u003c\/td\u003e\n\u003ctd\u003eSPST (single-pole single-throw) mechanical dry contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Voltage Limit\u003c\/td\u003e\n\u003ctd\u003e24 VDC nominal rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Load\u003c\/td\u003e\n\u003ctd\u003e2 A per individual channel path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Path Resistance\u003c\/td\u003e\n\u003ctd\u003eLess than or equal to 50 mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Isolation\u003c\/td\u003e\n\u003ctd\u003eChannel-to-system circuit isolation rated at 1500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDynamic Response Time\u003c\/td\u003e\n\u003ctd\u003eLess than or equal to 10 ms cycle transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Termination Base\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty M4 screw terminal blocks and integrated MIL connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Suffix Profile\u003c\/td\u003e\n\u003ctd\u003eBasic type, 19-inch rack-mountable, BR4 variant setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Tolerances\u003c\/td\u003e\n\u003ctd\u003e5 to 95% RH (non-condensing)\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 Technical Attributes\u003c\/h3\u003e\n\u003cp\u003eThis specialized terminal board provides robust galvanic isolation boundaries designed to safeguard internal processor cards against high-voltage induction events up to 1500 VAC. The module relies on a series of onboard safety relays and dry contact mechanics to cleanly break or complete field circuits with minimal contact degradation. To preserve signal integrity across critical interlock networks, the layout supports redundant backplane tracking, allowing continuous system operation and complete signal availability during hot-swap maintenance routines.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What operational benefit does the built-in safety relay architecture provide on the SRM53D?\u003c\/p\u003e\n\u003cp\u003eA: The integrated safety relay array ensures positive, mechanical break operation under designated fault conditions, preventing stuck-at-on contact failures from freezing external field actuators in unsafe configurations.\u003c\/p\u003e\n\u003cp\u003eQ: Can this terminal module handle mixed inductive and resistive load arrays on adjacent paths?\u003c\/p\u003e\n\u003cp\u003eA: Yes, though inductive loads require external surge suppression components mounted directly across the field device to prevent contact pitting and high-frequency noise injection into the module chassis.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Rail Attachment:\u003c\/strong\u003e Align the module mounting ears with standard vertical 19-inch cabinet rails, securing the assembly with proper load-rated machine screws to maintain structural bond paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Ring Termination:\u003c\/strong\u003e Crimp matching ring or spade lugs onto field loop wires before attaching them to the M4 screw blocks, torquing each connection down firmly to create low-resistance electrical contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Paths:\u003c\/strong\u003e Route all instrument wire shields directly to the localized common clean earth ground bar inside the control cabinet enclosure, keeping shield tails as short as possible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInductive Load Suppression:\u003c\/strong\u003e Install external flywheel diodes across DC solenoids or RC snubber circuits across AC coils to restrict arcing voltage transients across the internal dry contacts.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43681104265306,"sku":"SRM53D-000\/BR4","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/606.jpg?v=1784516197","url":"https:\/\/www.spareoil.com\/products\/analog-terminal-relay-output-module-yokogawa-srm53d-000-br4","provider":"SpareOil Automation","version":"1.0","type":"link"}