3RU21261HB0 - Siemens SIRIUS 5.5 to 8 A 3-Pole Thermal Overload Relay for Motor Protection

3RU21261HB0

3RU21261HB0 is a Siemens SIRIUS thermal overload relay designed for reliable motor protection in industrial applications. This 3-pole device features a 5.5 to 8 A current rating, manual-automatic reset, and is suitable for use with S0 size contactors. The relay provides protection against overload, phase asymmetry, and phase failure for three-phase motors. Engineered for durability and safety, the 3RU21261HB0 offers a 690 VAC insulation voltage, IP20 enclosure, and screw terminal connections for both main and auxiliary circuits. Its compact design and robust construction make it ideal for panel mounting in demanding environments.

• Manufacturer: Siemens
• Series: SIRIUS
• Part Number: 3RU21261HB0
• Amperage Rating: 5.5 to 8 A
• Number of Poles: 3
• Mounting Type: Contactor/Panel Mount
• Interrupt Rating: 690 VAC
• Frame Size: S0
• Trip Unit: Thermal
• Reset Type: Manual-Automatic
• Enclosure: IP20
• Terminal Type: Screw

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Specifications

• Part Number: 3RU21261HB0
• Manufacturer : Siemens
• Brand : Siemens
• Category : Motor Control
• Item Subcategory : Overload Relay
• Family : Sirius
• Type : 3RU21
• Relay Style : Thermal
• Aux Contacts : 1NO/1NC
• Amperage Maximum : 8
• Amperage Minimum : 5.5

Product Data

• UPC : 662643919103
• GTIN : 00662643919103
• Country of Origin : Germany
• Dimensions : 4.016 x 1.929 x 4.016 inch
• Weight : 0.401
• 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