{"product_id":"allen-bradley-1771-ow16-b-relay-output-module","title":"Allen-Bradley 1771-OW16\/B Relay Output Module","description":"\u003ch2\u003eAllen-Bradley 1771-OW16\/B Relay Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for AC\/DC load switching in the PLC-5 control system, the \u003cstrong\u003eAllen-Bradley 1771-OW16\/B\u003c\/strong\u003e (\u003cstrong\u003e1771-OW16\u003c\/strong\u003e Relay Output Module) provides direct physical\/electrical execution through 16 isolated mechanical relay output channels. The module switches Form A relay contacts for discrete control circuits with AC or DC loads.\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\u003eParameter\u003c\/th\u003e\n\u003cth\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\u003e1771-OW16\/B\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePLC-5 \/ 1771 I\/O Family\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.10 lbs \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\u003eApprox. 15 W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e16 isolated relay outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eForm A (SPST-NO) relay contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Range\u003c\/td\u003e\n\u003ctd\u003e5 to 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Range\u003c\/td\u003e\n\u003ctd\u003e5 to 125 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Current per Output\u003c\/td\u003e\n\u003ctd\u003e2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Continuous Current per Module\u003c\/td\u003e\n\u003ctd\u003e16 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e4 A for 10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e500 mA at 5 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V AC rms tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Arm\u003c\/td\u003e\n\u003ctd\u003e1771-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Life\u003c\/td\u003e\n\u003ctd\u003e200,000 operations at rated load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003ePLC-5 Relay Output Electrical Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe 1771-OW16\/B uses mechanical relay contacts to provide channel-to-channel electrical isolation for discrete output switching. The relay architecture allows AC and DC field circuits to be controlled from the PLC-5 I\/O chassis without solid-state leakage current. Each output channel operates independently for mixed field device connection, including solenoids, pilot lights, and motor starter control circuits.\u003c\/p\u003e\n\u003cp\u003eFor Allen-Bradley PLC-5 systems, the module integrates through the rack backplane interface. The I\/O density scaling of the 1771 family allows multiple relay output modules to be configured within a chassis according to available slot allocation and backplane loading requirements. Firmware flash compatibility is not applicable to this relay output hardware.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1771-OW16\/B support both AC and DC field loads?\u003cbr\u003eA: Yes. The relay contact outputs support AC loads from 5 to 240 VAC and DC loads from 5 to 125 VDC within the specified current ratings.\u003c\/p\u003e\n\u003cp\u003eQ: Does the module generate output leakage current when switched off?\u003cbr\u003eA: No. Mechanical relay contacts provide physical isolation and do not create solid-state off-state leakage current.\u003c\/p\u003e\n\u003cp\u003eQ: What type of field wiring connection is required?\u003cbr\u003eA: The module uses the 1771-WH wiring arm for field terminal connection and installation within a compatible 1771 I\/O chassis.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1771-OW16\/B module in a compatible Allen-Bradley 1771 I\/O chassis with the correct keying position and rack configuration. Verify backplane power availability before installation.\u003c\/p\u003e\n\u003cp\u003eRoute relay output wiring separately from low-level analog signal wiring to reduce electrical interference. Use appropriate field wiring practices for AC and DC circuits, including protective grounding and terminal tightening according to installation requirements. Confirm load voltage, current rating, and contact configuration before connecting field devices.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43689429467226,"sku":"1771-OW16-B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1771-OW16-B2.jpg?v=1784621921","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1771-ow16-b-relay-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}