{"product_id":"allen-bradley-1746-ov16-slc-500-digital-dc-sinking-output-module","title":"Allen-Bradley 1746-OV16 SLC 500 Digital DC Sinking Output Module","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1746-OV16\u003c\/strong\u003e is a high-density 16-channel digital DC transistor output module developed for the SLC 500 programmable controller platform. Operating across a wide output voltage range of 10 to 50 VDC, this module utilizes current-sinking wiring topology to switch DC loads by sinking load current to the common return. It provides reliable low-side control for DC-operated field devices such as solenoids, indicator lamps, and interposing relays within an open-style SLC 500 rack structure.\u003c\/p\u003e\n\u003ch3\u003eCurrent Sinking Switching Architecture\u003c\/h3\u003e\n\u003cp\u003eFeaturing 16 discrete transistor channels, the 1746-OV16 controls high-density field wiring configurations within a single chassis slot. In current-sinking mode, the output channels connect the load to ground when switched active. This design integrates directly into 24 VDC control loops while accommodating broader voltage ranges up to 50 VDC. Optical isolation between field terminals and the 5 VDC system backplane protects processor logic from external surges.\u003c\/p\u003e\n\u003ch3\u003eSystem Integration and Module Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe module installs into any standard local or remote 1746 I\/O chassis, interfacing with SLC 500 processors and remote I\/O adapters. The 1746-OV16 has been officially discontinued by the manufacturer, making original replacement units critical for maintaining existing controller installations. For maintenance setups, system wiring connects via a standard SLC 1746 removable terminal block, simplifying module swaps without requiring individual wire disconnection.\u003c\/p\u003e\n\u003ch3\u003eTechnical 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\u003e1746-OV16\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 Family\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDiscrete Digital DC Output Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Outputs\u003c\/td\u003e\n\u003ctd\u003e16 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Configuration\u003c\/td\u003e\n\u003ctd\u003eCurrent Sinking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e10 to 50 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Control Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\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\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eSLC 1746 Chassis Slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.35 lbs (0.16 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by Manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003cp\u003eFrequently Asked Questions\u003c\/p\u003e\n\u003cp\u003eQ: What output voltage range does the 1746-OV16 digital output module support? A: The 1746-OV16 operates across a output voltage range of 10 to 50 VDC, designed for current-sinking DC control loads.\u003c\/p\u003e\n\u003cp\u003eQ: How does a current-sinking output module like the 1746-OV16 switch field devices? A: In current-sinking configurations, the output channels act as switches to the negative common (0 VDC) rail when energized, pulling current from the external load through the module.\u003c\/p\u003e\n\u003cp\u003eQ: Is the Allen-Bradley 1746-OV16 still in active production? A: No, the 1746-OV16 has been officially discontinued by the manufacturer. It remains widely supported in legacy SLC 500 maintenance and replacement channels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":67113423077491,"sku":"1746-OV16","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/1746-OBP8_Cocoai_348890fe-3c5d-4032-a7eb-014409f77915.jpg?v=1793865858","url":"https:\/\/www.dcssupplier.com\/products\/allen-bradley-1746-ov16-slc-500-digital-dc-sinking-output-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}