The SIEMENS 3RV2811-1GD10 is a circuit breaker frame S00 designed specifically for transformer protection, offering approved safety per UL 489 and CSA C22.2 No. 5-02. It combines a 6.3 A thermal overload release with a 130 A short-circuit release to protect equipment from overheating and fault currents. Screw terminals provide secure wiring and the unit meets standard switching capacity requirements for reliable operation in control and distribution panels. Ideal for installations that require recognized approvals and clear, rated protection for small transformer circuits.