{"product_id":"siemens-3rv1821-1ed10-molded-case-circuit-breaker","title":"Siemens 3RV1821-1ED10 Molded Case Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3RV1821-1ED10 Molded Case Circuit Breaker, size S0, is a transformer-protection device from the 3RV family designed for compact, reliable overcurrent protection in control panels and low‑voltage distribution systems. This molded-case breaker uses screw terminals for secure wiring and carries UL 489 and CSA C22.2 No. 5-02 approvals, ensuring compliance with common North American safety standards. It features an a-trigger at 4 A and an n-trigger at 82 A to coordinate precisely with transformer protection schemes and enable selective tripping under fault conditions, backed by a thermal‑magnetic trip mechanism for both overloads and short circuits. Built for space‑conscious installations, the 3RV1821-1ED10 delivers dependable transformer protection in industrial environments without compromising ease of assembly or wiring integrity, making it a purpose‑built solution where transformer safety and panel footprint are critical. \u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":46268132786410,"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-3rv1821-1ed10-molded-case-circuit-breaker","provider":"GTG Hardware","version":"1.0","type":"link"}