{"product_id":"relay-output-modules-allen-bradley-1734-ow2","title":"Relay Output Modules | Allen-Bradley 1734-OW2","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1734-OW2\u003c\/strong\u003e is a 2-channel electromechanical relay output module designed for integration into the POINT I\/O distributed automation architecture. Featuring isolated Form A normally-open single-pole single-throw (SPST) contacts, the module allows industrial PLCs to switch independent AC and DC electrical loads. It handles backplane power conversion internally, isolating control backplane communication from field-side switching circuits up to 250 V dielectric isolation.\u003c\/p\u003e\n\u003ch3\u003eFunctional Performance \u0026amp; Relay Capabilities\u003c\/h3\u003e\n\u003cp\u003eEach of the two electromechanical relay channels supports switching currents up to 2.0 A at 240 V AC or 30 V DC under resistive loading conditions. Unlike 4-channel variants, the \u003cstrong\u003e1734-OW2\u003c\/strong\u003e module provides flexible field-side power options: loads can be driven using an external power source or optionally jumpered through the POINT I\/O internal field power bus via backplane power distribution terminals.\u003c\/p\u003e\n\u003cp\u003eThe contacts support operating switching frequencies of up to 0.3 Hz (one cycle every 3 seconds at rated load) and maintain a minimum contact life expectancy of 100,000 electrical operations under full rated load conditions. A low maximum off-state leakage current of 1.2 mA at 240 V AC through the snubber circuit ensures high signal integrity and prevents unwanted actuation of sensitive downstream control hardware.\u003c\/p\u003e\n\u003ch3\u003eHardware Installation \u0026amp; Terminal Configuration\u003c\/h3\u003e\n\u003cp\u003eThe module snaps directly onto standard DIN rails using a 1734-TB, 1734-TBS, 1734-TOP, or 1734-TOPS wiring base assembly. Removable Terminal Blocks (RTB) allow maintenance personnel to replace hardware without disconnecting field wiring. Built-in mechanical keying prevents incorrect module placement during field replacement.\u003c\/p\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\u003e\u003cstrong\u003e1734-OW2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003ePOINT I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003e2-Channel Form A Normally-Open (SPST) Relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Current Rating\u003c\/td\u003e\n\u003ctd\u003e2.0 A per channel max (Resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePilot Duty Rating\u003c\/td\u003e\n\u003ctd\u003eR150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e250 V continuous (tested at 2550 V DC for 60 s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e1.2 mA max at 240 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Power\u003c\/td\u003e\n\u003ctd\u003e80 mA at 5 V DC\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\u003eMaximum Switching Frequency\u003c\/td\u003e\n\u003ctd\u003e1 operation every 3 s (0.3 Hz at rated load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Life Expectancy\u003c\/td\u003e\n\u003ctd\u003e≥ 100,000 operations at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Wire Size\u003c\/td\u003e\n\u003ctd\u003e0.25 to 2.5 mm² (22 to 14 AWG) solid\/stranded copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Insulation Rating\u003c\/td\u003e\n\u003ctd\u003eRated at 85 deg C min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Port Wiring Category\u003c\/td\u003e\n\u003ctd\u003eCategory 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n\u003ctd\u003eOpen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 to 55 deg C (-4 to 131 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C (-40 to 185 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.26 kg (0.56 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTerminal Block Connections\u003c\/h3\u003e\n\u003cp\u003eField wiring terminates at the 8-pin removable terminal block (RTB) with the following pin assignments:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 0:\u003c\/strong\u003e Terminal 0 (Relay 0 output contact), Terminal 2 (Relay 0 output contact)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel 1:\u003c\/strong\u003e Terminal 1 (Relay 1 output contact), Terminal 3 (Relay 1 output contact)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Power Bus Options:\u003c\/strong\u003e Terminal 4\/5 (V common), Terminal 6\/7 (V supply)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1734-OW2 derive load switching power directly from the POINT I\/O backplane? A: Yes. Unlike 4-channel relay modules in the POINT I\/O family, the 1734-OW2 allows load power to be sourced from the internal field power bus by bridging the supply voltage to pins 6\/7 (V supply) and pins 4\/5 (V common). Alternatively, external power can be wired directly to the channel contacts.\u003c\/p\u003e\n\u003cp\u003eQ: Can two channels on the same 1734-OW2 module be wired to switch different voltage levels? A: Yes. Because each Form A relay set is galvanically isolated up to 250 V, one channel can control a 24 V DC loop while the second channel controls a 120 V AC or 240 V AC load.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":53162544070936,"sku":"1734-OW2","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1734-OW22_Cocoai.jpg?v=1793933906","url":"https:\/\/www.innoplcsync.com\/products\/relay-output-modules-allen-bradley-1734-ow2","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}