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Siemens 3RU21261HB0 - Thermal Overload Relay 5.5-8A (S0 Frame)

Siemens
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Siemens 3RU21261HB0 is a SIRIUS thermal overload relay designed for motor protection against overload, phase asymmetry, and phase failure in three-phase applications. This 3-pole device operates with a current range of 5.5 to 8 A and supports a 690 VAC insulation voltage, featuring 1NO/1NC auxiliary contacts and manual-automatic reset capability. The relay measures 4.016 x 1.929 x 4.016 inches, weighs 0.401 lb, and is constructed with an IP20 enclosure and screw terminal connections for panel or contactor mounting with S0 frame size contactors. It complies with REACH, RoHS, and WEEE directives, ensuring adherence to environmental and safety standards. This overload relay is suited for industrial motor control panels and automation systems requiring reliable thermal protection.

Key Features & Specifications
  • Manufacturer: Siemens
  • Series: SIRIUS
  • Part Number: 3RU21261HB0
  • Type: 3RU21
  • Relay Style: Thermal
  • Amperage Minimum: 5.5
  • Amperage Maximum: 8
  • Number of Poles: 3
  • Aux Contacts: 1NO/1NC
  • Reset Type: Manual-Automatic
  • Interrupt Rating: 690 VAC
  • Frame Size: S0
  • Mounting Type: Contactor/Panel Mount
  • Enclosure: IP20
  • Terminal Type: Screw
  • Dimensions: 4.016 x 1.929 x 4.016 inch
  • Weight: 0.401 lb
  • Country of Origin: Germany
  • Certification: REACH Art 33 Duty to Inform According to the Current List of Candidates Lead CAS-No. 7439-92-1 Greater Than 0, 1 % (w/w), RoHS 07/01/2006, WEEE (2012/19/EU) Take-Back Obligation


Product Identification
  • UPC: 662643919103
  • GTIN: 00662643919103