3RF2255-3AC45
The Siemens SIRIUS 3RF2255-3AC45 is a three-phase solid-state relay with a rated current of 55A, a load voltage of 48-600V AC, a control voltage of 4-30V DC, a blocking voltage of 1200V, and a surge withstand capability of 6kV. It is suitable for three-phase motor and electric heating load control.
Product Positioning
The SIRIUS 3RF2255-3AC45 is a three-phase solid-state relay in the Siemens 3RF2 series, with a rated current of 55A. It synchronously switches three-phase loads using a shared control input method with three control circuits, making it suitable for high-power motors or electric heating applications.
Core Product Advantages and Features
Three-phase synchronous control
The three-phase main circuit switches synchronously using a shared control input, simplifying the control wiring for three-phase loads.
55A high current capacity
Rated current up to 55A (according to UL 508 standard), which can meet the needs of larger power three-phase loads.
High voltage withstand and surge protection
The component has a blocking voltage of up to 1200V and can withstand a 6kV surge voltage, improving the reliability of system operation.
Wide DC control input
The control voltage ranges from 4-30V DC, making it easy to use with control signals of different voltage levels.
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