{"product_id":"sarm15a-000-yokogawa-arm15a-relay-input-module","title":"SARM15A-000 Yokogawa ARM15A Relay Input Module","description":"\u003ch2\u003eYokogawa SARM15A ARM15A-000 Mechanical Relay Contact Input Board\u003c\/h2\u003e\n\u003cp\u003eConfigured for dry contact signal conditioning in CENTUM CS 3000 architectures, the \u003cstrong\u003eYokogawa SARM15A-000\u003c\/strong\u003e (\u003cstrong\u003eARM15A\u003c\/strong\u003e) Mechanical Relay Contact Input Module provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe part numbering structure defines the underlying module hardware and terminal revision:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSARM15A \/ ARM15A\u003c\/strong\u003e: Base model designation for 32-channel mechanical relay contact input boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-000\u003c\/strong\u003e: Standard hardware revision specifying M4 screw-type field terminal connection points.\u003c\/li\u003e\n\u003c\/ul\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\u003eSARM15A-000\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\u003e2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482.6 x 132.5 x 105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~20 mA per channel at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e32 input points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Signals\u003c\/td\u003e\n\u003ctd\u003eDry contact switches, sensors, or voltage inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eON State Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 150 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOFF State Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 200 kohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Capacity\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 30 VDC, 20 mA load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 10 Mohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd\u003e1.5 kV AC (input-to-ground), 0.5 kV AC (power-to-ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Connection\u003c\/td\u003e\n\u003ctd\u003eM4 screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Signal Cables\u003c\/td\u003e\n\u003ctd\u003eAKB331 (32-point connection), AKB337 (64-point connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Modules\u003c\/td\u003e\n\u003ctd\u003eADV151 (32-point DI), ADV161 (64-point DI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e19-inch rack mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eChannel-to-Channel Isolation and Loop Performance\u003c\/h3\u003e\n\u003cp\u003eThe unit routes discrete digital inputs across optoisolated and mechanical relay isolation barriers, delivering channel-to-channel isolation that limits noise propagation and prevents ground loops across sensitive control circuits. Dielectric strength testing validates performance up to 1.5 kV AC between input circuits and chassis ground. Cold junction compensation (CJC) pathing is bypassed for pure dry contact sensing, maintaining low loop impedance across long cable runs connected via AKB331 interface wiring.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the primary cable and I\/O module pairings for the SARM15A-000 terminal board?\u003c\/p\u003e\n\u003cp\u003eA: The board interfaces directly with Yokogawa ADV151 (32-point DI) and ADV161 (64-point DI) modules via AKB331 (32-point) or AKB337 (64-point) signal cables.\u003c\/p\u003e\n\u003cp\u003eQ: What loop resistance levels determine valid state detection on input contacts?\u003c\/p\u003e\n\u003cp\u003eA: The hardware detects an ON state when loop resistance drops to 150 ohm or less, and recognizes an OFF state when resistance reaches or exceeds 200 kohm.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module handle electrical isolation between field input signals and cabinet ground?\u003c\/p\u003e\n\u003cp\u003eA: Galvanic separation provides dielectric protection up to 1.5 kV AC between input field terminals and chassis ground, and up to 0.5 kV AC between internal power circuits and ground.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the board into standard 19-inch rack enclosures using specified hardware fixtures. Route signal cables separately from high-voltage AC lines to prevent electromagnetic induction. Terminate field wires to M4 screw terminals, torqueing to a standard 1.2 Nm rating to prevent contact resistance variations. Secure field conduit connections ensuring a minimum engagement of 5 full NPT threads. Ensure the cabinet earth ground connects directly to the chassis ground lug via low-impedance copper strap to optimize noise immunity.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43815563427930,"sku":"SARM15A-000","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/765.jpg?v=1786324378","url":"https:\/\/www.spareoil.com\/es\/products\/sarm15a-000-yokogawa-arm15a-relay-input-module","provider":"SpareOil Automation","version":"1.0","type":"link"}