{"product_id":"industrial-esmu-a-a1-programmable-logic-controller","title":"Industrial ESMU-A-A1 Programmable Logic Controller","description":"\u003cdiv\u003e\u003cp\u003eESMU-A-A1 is a Ritz-branded Strom-Meßumformer (current sensing transducer) designed as the sensing element within an industrial ESMU controller system. It provides current measurement input to the ESMU control module, enabling accurate monitoring and regulation of actuators and field devices in building automation and HVAC control applications that use Ritz\/RITZ ESMU components. The A-A1 variant is part of the ESMU family and uses a dedicated terminal layout for sensor and actuator connections, typical of rugged industrial installations where reliable current data feeds the control logic. Common applications include monitoring feed currents for valves, pumps, and safety interlocks within Danfoss ESMU-based control schemes, and integrating with ESMU controllers in heating, cooling, and other process-control environments to support regulation, protection, and interlock functions. \u003c\/p\u003e\u003c\/div\u003e","brand":"RITZ","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46284588351722,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-023.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/industrial-esmu-a-a1-programmable-logic-controller","provider":"GTG Hardware","version":"1.0","type":"link"}