Siemens 3RF2920-0FA08: A Reliable Solid-State Relay for Industrial Applications

The Siemens 3RF2920-0FA08 is a compact yet powerful solid-state relay designed to meet the demands of modern industrial control systems. Whether you’re managing heating elements, motors, or lighting systems, this relay ensures precise switching and long-term reliability.

Key Features

• Zero-Crossing Switching: Minimizes electrical noise and reduces stress on connected loads during activation.
• Compact Design: Saves valuable panel space, making it ideal for densely packed control cabinets.
• Wide Input Voltage Range: Compatible with both AC and DC control signals, offering flexibility in various applications.
• LED Status Indicator: Provides clear visual feedback on the relay’s operational status, simplifying troubleshooting.
• High Surge Current Resistance: Handles sudden load spikes without compromising performance, ensuring consistent operation.

Technical Specifications

Application Fields

From my experience, this model works exceptionally well in industries like food processing, where precise temperature control is critical. It also finds use in HVAC systems, conveyor belts, and packaging machines. One thing I appreciate is how seamlessly it integrates into existing setups, reducing downtime during upgrades.

Advantages & Value

What sets the 3RF2920-0FA08 apart is its balance of affordability and durability. In most cases, customers see a reduction in maintenance costs due to its robust design. Compatibility with standard DIN rails means no additional mounting hardware is needed, saving both time and money. Plus, Siemens’ reputation for excellent technical support adds peace of mind when integrating this component into your system.

Installation & Maintenance

For installation, ensure proper ventilation around the unit to prevent overheating. The relay should be mounted in an enclosure that meets IP20 standards at minimum. Wiring must comply with local electrical codes, and we recommend using copper conductors only. Routine maintenance includes periodic checks for loose connections and cleaning dust from the terminals. Firmware isn’t applicable here, but recalibration might be necessary if used in highly sensitive environments.

Quality & Certifications

This product carries CE, UL, and RoHS certifications, ensuring compliance with global safety and environmental standards. The manufacturer offers a 12-month warranty, covering defects in materials and workmanship under normal operating conditions.

Our order placement process guarantees delivery within one week for in-stock items, with express shipping options via FedEx, UPS, or DHL. Payment terms include a 50% advance deposit, with the remaining balance due before dispatch.