Overview
The Siemens 3RA2813-2FW10 is a high-performance, solid-state time-delayed auxiliary switch designed to enhance the functionality of your control circuits. This ON-delay relay provides precise timing control for a wide range of industrial applications. Its compact design allows it to be easily and securely snapped onto the front of Siemens 3RT20 power contactors and 3RH2 contactor relays, saving valuable panel space and simplifying wiring.
Key Features & Benefit
- Precise Timing Control: With a broad time range of 0.05 to 100 seconds, this relay allows for fine-tuned control of time-delayed operations, ensuring accuracy and reliability in your processes.
- Integrated Varistor: The built-in varistor provides essential attenuation for contactor coils, protecting against voltage spikes and prolonging the life of your equipment. This feature eliminates the need for external components, simplifying your circuit design.
- Secure & Convenient Connection: The innovative spring-loaded terminals (push-in technology) ensure a fast, reliable, and vibration-proof connection without the need for tools. This significantly reduces installation time and maintenance effort.
- Space-Saving Design: Its ability to be directly mounted onto the front of 3RT20 and 3RH2 devices makes for a highly compact and efficient control panel layout.
- Versatile Power Compatibility: The wide supply voltage range of 24-240 V AC/DC (50/60 Hz) makes it suitable for a diverse range of global applications and power systems.
- Reliable Switching: The 1 NC + 1 NO relay contacts provide flexible switching options for various control circuit configurations.
- Solid-State Reliability: As a solid-state device, the 3RA2813-2FW10 offers enhanced durability and a longer lifespan compared to traditional electromechanical relays.
Function
The Siemens 3RA2813-2FW10 operates as an "ON-delay" time relay. When the supply voltage is applied, a preset time delay begins. After this time has elapsed, the relay's contacts change state (the NO contact closes and the NC contact opens). This functionality is crucial for applications such as sequential motor starting, delayed alarm activation, or any process where a controlled time delay is required after an event.
Technical Specification
- Product Type: Solid-state time-delayed auxiliary switch
- Time Range: 0.05 - 100 seconds (ON-delay)
- Contact Configuration: 1 normally closed (NC) + 1 normally open (NO)
- Supply Voltage: 24 - 240 V AC/DC, 50/60 Hz
- Terminal Type: Spring-loaded terminal
- Integration: Can be snapped onto the front of Siemens 3RT20 contactors and 3RH2 contactor relays
- Additional Features: Integrated varistor for coil attenuation
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