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Siemens 3RF2050-1AA45 - Overload Relay 50A (48-600V AC)

Siemens
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Siemens 3RF2050-1AA45 is a single-phase semiconductor relay serving as an overload relay for precise motor control and protection. It operates with a current rating of 50 A across a voltage range of 48 to 600 V AC, controlled by a 4 to 30 V DC signal, and features high-power thyristors with zero crossing switching and a blocking voltage of 1200 V. The device has a compact 45 mm width, screw-type terminals for secure mounting, and supports side-by-side installation on cooling surfaces, weighing 0.1848 lb. It complies with industry standards for industrial automation and offers fast switching with a switch-on and off-delay time of approximately 1 ms at frequencies of 50 to 60 Hz. Typical applications include motor control in manufacturing, conveyor systems, and process automation.

Key Features & Specifications
  • Type: Single-phase semiconductor relay
  • Current rating: 50 A
  • Operating voltage: 48 to 600 V AC
  • Control voltage: 4 to 30 V DC
  • Mounting type: Screw fixing
  • Width: 45 mm
  • Blocking voltage: 1200 V
  • Switching frequency: 50-60 Hz
  • Zero crossing switching
  • High-power thyristors
  • Side-by-side mounting capable
  • Weight: 0.1848 lb


Product Identification
  • UPC: 075455492579
  • GTIN: 00754554925790