{"product_id":"siemens-3rv1031-4ha10-molded-case-circuit-breaker","title":"Siemens 3RV1031-4HA10 Molded Case Circuit Breaker","description":"\u003cdiv\u003e\u003cp\u003eSiemens 3RV1031-4HA10 is a three-pole molded‑case circuit breaker (motor protector) sized S2, rated to protect and switch three‑phase motors up to 50 A with a 40–50 A nominal range and a 650 A short‑circuit release. It features a thermal‑magnetic trip with a Class 10 A release, uses screw terminals for secure wiring, and provides IP20 front protection for installation in standard control panels. Designed for 690 V AC operation (AC‑3 duty), its main circuit comprises three poles and is rated for up to 690 V, with a rated current of 40–50 A, an impulse withstand of 6 kV, and a mechanical life around 50,000 switching cycles. The device is specified for environments up to 2,000 m in altitude and operating temperatures from -20 to 70 C, making it suitable for motor protection in panel boards and industrial equipment such as pumps and fans. Siemens notes that 3RV1031‑4HA10 has been superseded by the SIRIUS 3RV2 family and is no longer produced, with the recommended successor example being 3RV2031‑4WA10. This combination of current rating, voltage, and motor‑protection features in a compact, screw‑terminal MCCB made it a common choice for medium‑sized motor circuits in older installations. \u003c\/p\u003e\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"New","offer_id":46268130328810,"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-3rv1031-4ha10-molded-case-circuit-breaker","provider":"GTG Hardware","version":"1.0","type":"link"}