{"product_id":"allen-bradley-1734-ow4-point-i-o-relay-output-module","title":"Allen-Bradley 1734-OW4 POINT I\/O Relay Output Module","description":"\u003ch1\u003eAllen-Bradley 1734-OW4 POINT I\/O Relay Output Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1734-OW4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-OW4\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRelay Output Module utilized to execute electromechanical relay switching of field loads across POINT I\/O distributed I\/O platforms. The module provides four normally-open isolated relay outputs, communicates through the POINT I\/O backplane, and supports control of AC or DC field circuits through dry-contact relay interfaces.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe supplied documentation identifies a single catalog number,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1734-OW4\u003c\/strong\u003e. No official suffix variants or ordering matrix information are provided in the source material.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\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\u003e1734-OW4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eRelay Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003ePOINT I\/O 1734\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eNormally-Open Isolated Electromechanical Relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Configuration\u003c\/td\u003e\n\u003ctd\u003eForm A (N.O.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e90 mA @ 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e0.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e0.5 W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e1.2 mA at 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e1 operation every 3 s maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Life\u003c\/td\u003e\n\u003ctd\u003e100,000 operations minimum at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Category\u003c\/td\u003e\n\u003ctd\u003eCategory 1 (signal ports)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Type\u003c\/td\u003e\n\u003ctd\u003eOpen Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.06 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBackplane Communication and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1734-OW4 exchanges control data through the POINT I\/O backplane and occupies a compact distributed I\/O footprint. Within POINT I\/O architectures, relay output modules can be combined with digital, analog, and specialty modules on the same backplane segment, allowing I\/O density expansion without altering controller logic structure. Backplane communication manages output state transfer while field-side relay contacts provide galvanic separation between the control system and connected loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1734-OW4 use solid-state outputs or mechanical relay contacts?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module uses four normally-open isolated electromechanical relay outputs rather than transistor-based outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the module switch outputs at high frequency?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. The specified maximum switching frequency is one operation every 3 seconds at rated load, reflecting the characteristics of mechanical relay contacts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What backplane load does the module place on the POINT I\/O system?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module draws 90 mA from the 5 VDC POINT I\/O backplane supply.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInstall the module inside a protective industrial enclosure because the unit is specified as an open-style device.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify that terminal conductors and connected loads remain within the relay contact ratings specified by the system documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoute relay output wiring separately from low-level analog signal wiring to reduce electromagnetic interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure adequate cabinet ventilation when multiple relay modules are installed in adjacent slots.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFollow POINT I\/O keying and terminal-base installation procedures before energizing field circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInspect relay-controlled inductive loads and apply appropriate suppression devices where required by the load manufacturer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43479264133210,"sku":"1734-OW4","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1734-OW42.jpg?v=1781148657","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1734-ow4-point-i-o-relay-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}