The 3RF2171-1AA45-1KP0 is a compact, DIN-rail solid-state relay (SSR) from the proven SIEMENS SIRIUS 3RF2 family. Designed for 1-phase resistive or slightly inductive loads, it switches 24–230 VAC currents up to 20 A with zero-crossing technology for low-noise operation and long electrical life. The 45 mm width, spring-loaded terminals and integrated heat sink make it ideal for panel builders upgrading from mechanical contactors in plastics, packaging or HVAC applications.

Key Specifications

• Order number: 3RF2171-1AA45-1KP0
• Device type: 1-phase solid-state relay, zero-crossing
• Load voltage: 24–230 VAC (45–65 Hz)
• Rated operational current: 20 A at 40 °C (AC-51)
• Control voltage: 24 VDC (19–30 VDC, 6 mA)
• Isolation: 4 kV (input-to-output)
• Switching time: <10 ms ON, <10 ms OFF
• Integrated varistor protection (250 V)
• Mounting: DIN rail TS 35, 45 mm module width
• Operating temperature: –25 °C … +60 °C (derating above 40 °C)
• Certifications: CE, UL, CSA, EAC, RCM, RoHS

Company Service:

1. Fast delivery (1-3 days will ship out for in-stock products)

2. Rich experience (More than 10 years of sales experience)

3. Large inventory ( Various brands and overseas warehouse)

4. Quality insurance ( Clear products condition with 1-year warranty)

More models:

Xiamen  Order Line Automation Equipment Co., Ltd.We are a trading company specializing in the sales and services of PLC modules, controllers, sensors, servo motors, HMI, motor inverters, servo drives, communication and encoders, and other products. The product is widely used in equipment manufacturing, agriculture, ecological environment protection, new energy and other fields, providing customers with special control and industrial I0P solutions. Our products are exported to over 100 countries including Europe, America, Southeast Asia, and the Americas. We are committed to providing a one-stop customer experience and offering you a complete range of products. We provide reasonable after-sales service and bring you a high-quality experience. Each product is carefully packaged to minimize damage during transportation.