3RB2056-1FW2
The Siemens SIRIUS 3RB2056-1FW2 solid-state overload relay is an S6 size relay with a Class 10E tripping rating. The main circuit uses a through-type current transformer connection, and the auxiliary circuit uses screw terminals. It supports manual and automatic reset.
Product Positioning
The Siemens SIRIUS 3RB2056-1FW2 is an S6-size solid-state electronic overload relay. The main circuit uses a through-type current transformer connection and is suitable for the protection of three-phase motors under general starting conditions.
Core Product Advantages and Features
Through-type current transformer design
The main circuit is connected by a through-type current transformer, which provides high installation flexibility and is not limited by a specific contactor model.
Class 10E standard break
It skips Class 10E, meeting the protection response time required for typical motor starting characteristics.
Screw terminal auxiliary circuit
The auxiliary circuit uses screw terminals for connection, ensuring a secure connection and making it suitable for long-term use in industrial settings.
Manual/Automatic Dual Reset Mode
It supports both manual and automatic resets, making maintenance and testing more flexible and reducing downtime.
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3RB2056-2FC2
The Siemens SIRIUS 3RB2056-2FC2 solid-state overload relay is an S6 size relay with a Class 20 trip rating. The main circuit bus connection allows direct mounting of 3RT1054 to 1056 series contactors. The auxiliary circuit uses screw terminals and features overload and phase loss protection.
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3RB2056-1FC2
The Siemens SIRIUS 3RB2056-1FC2 solid-state overload relay is an S6 size, Class 10 tripping relay. It features a main circuit bus connection for direct mounting of 3RT1054 to 1056 series contactors, auxiliary circuit screw terminals, and overload and phase loss protection.