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.
Product Positioning
The 3RA2814-1AW10 is a solid-state delay auxiliary switch from the Siemens SIRIUS 3RA28 series. It functions as a power-off delay switch and requires an external control voltage to operate. It provides one set of switching contacts and is suitable for delay control circuits that require independent control of power sequence.
Core Product Advantages and Features
Voltage control is required for power outage delay.
The delayed action requires an external control voltage input and can be time-controlled independently of the main circuit power supply.
1 set of switching contacts
It provides normally open and normally closed switching with a single CO contact, making the wiring method relatively simple.
Screw terminals
The wiring is secured with screws, making identification and disassembly during installation and maintenance more intuitive.
Built-in surge suppressor
Suppress the surge generated when the contactor coil is de-energized to protect surrounding control components.
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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.
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3RA2813-2FW10
The 3RA2813-2FW10 is a time-delay solid-state auxiliary switch with 1NC and 1NO contacts, spring-loaded terminal design, a delay range of 0.05 to 100 seconds, and a control voltage of 24 to 240V AC/DC. It can be mounted in front of SIRIUS 3RT2 S00 to S3 contactors and 3RH2 contactor relays.
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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.