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Siemens 3RV2021-1FA10 - Motor Protection Circuit Breaker 3.5-5A

Siemens
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Siemens 3RV2021-1FA10 is a molded case motor protection circuit breaker from the Sirius family, designed to provide overload and short circuit protection for motor control applications. This device features a 3.5-5A adjustable thermal overload range with a 690VAC voltage rating and a 3-pole configuration, utilizing a thermal/magnetic trip unit with Class 10 protection for reliable operation. The breaker includes a rotary actuator for clear ON/OFF control, screw terminals for secure wiring, and a compact DIN rail mounting design for space-saving installation in industrial enclosures. It is certified to UL Type E standards and offers a 6 kA interrupting rating, ensuring robust performance in demanding environments. Typical applications include motor protection in industrial automation, conveyor systems, and pump controls.

Key Features & Specifications
  • Manufacturer: Siemens
  • Item Subcategory: Molded Case
  • Family: Sirius
  • Country of Origin: Czechia
  • Weight: 0.792 lb
  • Part Number: 3RV2021-1FA10
  • Series/Frame: Sirius 3RV2021, Frame Size S0
  • Amperage: 3.5-5A adjustable
  • Voltage Rating: 690VAC
  • Poles: 3
  • Interrupt Rating: 6 kA
  • Mounting Type: DIN Rail
  • Trip Unit: Thermal/Magnetic, Class 10
  • Actuator Type: Rotary
  • Terminals: Screw
  • Certifications: UL Type E, Class 10 overload protection


Product Identification
  • UPC: 04089294222
  • GTIN: 00040892942224