{"product_id":"kj2231x1-ea1-emerson-deltav-sis-datasheet-technical-manual","title":"KJ2231X1-EA1 Emerson DeltaV SIS Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eEmerson KJ2231X1-EA1 DeltaV SIS Series\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEmerson KJ2231X1-EA1\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eKJ2231X1-EA1\u003c\/strong\u003e SIS Relay Module, operates as a dedicated hardware component for critical safety functions within Emerson DeltaV SIS networks. The module interfaces directly with safety logic solvers to execute precise contact switching for shutdown valves, emergency alarms, and final field actuators.\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\u003eKJ2231X1-EA1\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\u003e0.23 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eFactory Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC at 70 mA (Input Power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSIS Relay Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eEmerson DeltaV SIS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating (DC)\u003c\/td\u003e\n\u003ctd\u003e30 VDC at 2.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Rating (AC)\u003c\/td\u003e\n\u003ctd\u003e250 VAC at 2.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Range\u003c\/td\u003e\n\u003ctd\u003e5% to 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003e10 g, 11 ms half-sine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003e1 mm (2-13.2 Hz), 0.7 g (13.2-150 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant Level\u003c\/td\u003e\n\u003ctd\u003eISA-S71.04 Class G3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eATEX, IECEx, FM, UKEX (Zone 2 \/ Class I Div. 2)\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 KJ2231X1-EA1 safety relay module utilizes a high-integrity galvanic isolation framework to separate low-voltage logic backplane communications from high-voltage field actuator circuits. This internal isolation structure prevents destructive transients from propagating back to the central logic solver during short-circuit faults on the 2.5 A contact lines. The design ensures precise channel-to-channel isolation and predictable coil actuation curves required to execute zero-voltage fail-safe state execution in strict compliance with safety instrumented loop criteria.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What constraints apply to the 2.5 A relay contact ratings during continuous inductive load switching?\u003c\/strong\u003e \u003cstrong\u003eA:\u003c\/strong\u003e The 2.5 A rating represents the maximum limits for resistive loads at 30 VDC or 250 VAC. When switching inductive devices such as heavy-duty solenoids, external arc suppression diodes or varistors must be installed across the field load to prevent contact degradation and timing skew.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module support hot-swapping during an active safety loop execution?\u003c\/strong\u003e \u003cstrong\u003eA:\u003c\/strong\u003e The hardware allows slot replacement under backplane power, but physical extraction opens the associated relay contacts immediately. This state transition will trigger downstream safety interlocks or fail-safe trips if the specific safety loop has not been put into a bypassed or decoupled state prior to module removal.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier Insertion:\u003c\/strong\u003e Align the module frame with the dedicated DeltaV SIS carrier slot. Press the module inward until the integrated latching mechanism locks into position, ensuring the grounding contacts engage with the backplane earth plane.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Contact Wiring:\u003c\/strong\u003e Route all AC and DC load circuits through separate, isolated wire tracks. Ensure that field wiring insulation ratings match or exceed the 250 VAC maximum contact boundary specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosive Environment Mitigation:\u003c\/strong\u003e For installations in Class G3 harsh environments, maintain closed enclosure doors and verify that the module is completely engaged to prevent localized atmospheric corrosion on the terminal pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Area Disconnection:\u003c\/strong\u003e Before servicing the relay connections or removing the module in a Zone 2 or Class I Division 2 environment, ensure that the field circuit power is completely isolated to eliminate potential spark risks.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Emerson","offers":[{"title":"Default Title","offer_id":43840642383971,"sku":"KJ2231X1-EA1","price":370.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/148.1_ebb5e785-2f33-45fe-8108-9990c53c0ed2.jpg?v=1763361160","url":"https:\/\/www.autocontrolglobal.com\/products\/kj2231x1-ea1-emerson-deltav-sis-datasheet-technical-manual","provider":"AutoControl Global","version":"1.0","type":"link"}