{"product_id":"siemens-ag-3ug4651-2aa30-speed-monitoring-relay","title":"Siemens AG 3UG4651-2AA30 Speed Monitoring Relay","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3UG4651-2AA30 is a digital speed-monitoring relay from the SIRIUS family that supervises motor speed and detects under\/overspeed and standstill conditions in drive systems. It measures shaft speed from 0.1 to 2200 rpm and provides a single changeover contact with an optional fault buffer; the measuring circuit is not galvanically isolated from the control supply. The unit is powered from 24 V AC\/DC (50–60 Hz) and offers adjustable ON-delay from 1 to 900 s, tripping delay from 0.1 to 99.9 s, and hysteresis from 0.1 to 99 rpm, with a spring-loaded connection system for secure wiring. Its compact DIN-rail enclosure (~86 mm x 22.5 mm x 103 mm) carries IP20 protection, suitable for panel mounting in industrial control panels.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":46268184232170,"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-017.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-ag-3ug4651-2aa30-speed-monitoring-relay","provider":"GTG Hardware","version":"1.0","type":"link"}