{"product_id":"siemens-3ul2201-2a-residual-current-device-rccb","title":"Siemens 3UL2201-2A Residual Current Device RCCB","description":"\u003cdiv\u003eSiemens 3UL2201-2A is a residual-current device component — a summation current transformer (SCT) designed for use with Siemens RCCB assemblies. It provides a 0.5 A secondary, feeding the residual-current protection circuit so the RCCB trips when leakage currents cause an imbalance among the conductors. As a specialized SCT option within Siemens’ residual current protection ecosystem, the 3UL2201-2A enables accurate monitoring of current in multi-conductor paths to ensure rapid isolation of the protected circuit in the event of earth leakage. Typical applications include low-voltage electrical installations in residential, commercial, and light-industrial settings where Siemens SENTRON protection devices are deployed and integration with RCCB modules is required. The part number 3UL2201-2A uniquely identifies this SCT component for residual current monitoring, reinforcing its role as a critical accessory that supports reliable leakage protection in Siemens RCCB configurations.\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":46268184264938,"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-3ul2201-2a-residual-current-device-rccb","provider":"GTG Hardware","version":"1.0","type":"link"}