3RA2815-2FW10
The 3RA2815-2FW10 is a solid-state delay auxiliary switch that provides a power-off delay without requiring an external control voltage. It features 1 NC and 1 NO contact, spring-loaded terminals, a control voltage of 24 to 240V AC/DC, a delay range of 0.05 to 100 seconds, and can be used with SIRIUS 3RT2 S00 to S3 contactors and 3RH2 contactor relays.
Product Positioning
The 3RA2815-2FW10 is a solid-state time-delay auxiliary switch from the Siemens SIRIUS 3RA28 series. Its function is to delay power-off without requiring a separate control voltage. It can be directly mounted in front of the contactor and is commonly used in control circuit designs that require a delayed disconnection signal.
Core Product Advantages and Features
Power-off delay does not require voltage control
The contactor switches its output contacts after a delay following a power outage, and no additional control power supply is required, simplifying wiring.
Spring-type terminals
The wires are held in place by springs, making installation quick and preventing them from easily coming loose during long-term use.
1NC plus 1NO dual contact
It provides both normally closed and normally open contacts to facilitate the construction of control loops with different logic.
Built-in surge suppressor
It can suppress the surge voltage generated by the contactor coil and extend the life of surrounding components.
Recommend
Read More
3RA2816-0EW20
The 3RA2816-0EW20 is a star-delta (Y-Δ) functional module containing a basic module and two sets of coupling modules with integrated connecting cables. It controls voltages from 24 to 240V AC/DC, with switching times from 0.5 to 60 seconds. It is suitable for SIRIUS 3RT2 contactors and 3RH2 contactor relays, covering sizes from S00 to S3.
Read More
3RA2815-1FW10
The 3RA2815-1FW10 is a solid-state delay auxiliary switch that provides power-off delay without requiring an external control voltage. It features 1NC and 1NO contacts, a screw-type terminal design, dimensions of 38x45x74mm, IP20 protection rating, and is suitable for front-mounted mounting on SIRIUS 3RT2 S00 to S3 contactors and 3RH2 contactor relays.
Read More
3RA2814-1AW10
The 3RA2814-1AW10 is a solid-state time-delay auxiliary switch that provides a power-off delay and requires an additional control voltage. It features a single set of switching contacts (1CO), screw-type terminals, a delay range of 0.05 to 100 seconds, and is compatible with SIRIUS 3RT2 contactors of various sizes and 3RH2 contactor relays. It also includes a built-in surge suppressor.