3RA2813-1AW10

The 3RA2813-1AW10 is a time-delay solid-state auxiliary switch with a single set of switching contacts (1CO), screw-type terminals, a delay range of 0.05 to 100 seconds, and a mechanical life of approximately 10 million cycles. It is suitable for front-mounted use with S00 to S2 contactors such as SIRIUS 3RT2, 3RH21, and 3RH24.

Share To

Siemens 3RA2813-1AW10 Solid State Delay Auxiliary Switch Switching Contact

Product Positioning

The 3RA2813-1AW10 is a solid-state time-delay auxiliary switch from the Siemens SIRIUS 3RA28 series. Its function is to delay power-on, and it outputs with only a single switching contact (CO). The wiring is relatively simple, making it suitable for control circuits that only require one set of output signals.

Core Product Advantages and Features

Power-on delay function

The output is switched only after a set time delay after the control voltage is applied, which is beneficial for segmented start-up control.

Single switching contact

A single CO contact can simultaneously function as both normally open and normally closed, simplifying the control circuit wiring.

Screw terminals

The wiring method uses screw locking, which conforms to the wiring habits of traditional control panels.

High mechanical life

With a mechanical operating life of approximately 10 million cycles, it is suitable for applications involving long-term, frequent operation.

project	Specification
Model (MLFB)	3RA2813-1AW10
Product Type	Solid-state delay auxiliary switch
Delay function	Power-on delay
Contact configuration	1 set of switching contacts (1 CO)
Terminal type	Screw terminals
Control power supply voltage	24…240V AC/DC, 50/60Hz
Delay setting range	0.05…100 seconds
Rated current of contacts	AC-15 maximum 3A (24V/250V)
Applicable contactors	SIRIUS 3RT2, 3RH21, 3RH24 (S00, S0, S2)
Mechanical life	Approximately 10 million switches
Electrical life	Approximately 100,000 cycles under AC-15/230V.

Recommend

3RA2813-1FW10

The 3RA2813-1FW10 is a time-delay solid-state auxiliary switch with 1NC and 1NO contacts, screw terminals, and dimensions of approximately 45×38×74mm. It has an IP20 protection rating, a control voltage of 24 to 240V AC/DC, and can be mounted in front of SIRIUS 3RT2 S00 to S3 contactors. It also features a built-in surge suppressor.

3RA2812-1DW10

The 3RA2812-1DW10 is an electronic time-delay relay with a power-off delay and requires an external control signal. It has a semiconductor output with screw terminals and a delay range of 0.05 to 100 seconds. It is only compatible with SIRIUS 3RT201, 3RT202 (S00/S0) and 3RH2 auxiliary contactors and has a built-in surge suppressor.

3RA2811-1CW10

The 3RA2811-1CW10 is an electronic time-delay relay with a two-wire connection, semiconductor output, screw terminals, a delay range of 0.05 to 100 seconds, and a net weight of approximately 0.10 kg. It is only compatible with SIRIUS 3RT201, 3RT202 (S00/S0) and 3RH2 auxiliary contactors.