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Siemens 3RB31334WB0 - Overload Relay 20-80A (690VAC)

Siemens
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Siemens 3RB31334WB0 is a SIRIUS electronic overload relay designed for comprehensive motor protection. This 3-pole device operates with a current range of 20 to 80 amps and a voltage rating up to 690 VAC, supporting trip classes from 5E to 30E with manual and automatic reset options. The relay measures 99 mm in height, 55 mm in width, and 104 mm in depth, weighs 0.895 lb, and features screw terminals for both main and auxiliary circuits, mounting directly onto Size S2 contactors. It is certified compliant with IEC standards and meets RoHS, REACH, and WEEE requirements. This overload relay is suitable for industrial motor protection applications requiring internal ground fault detection and reliable overload monitoring.

Key Features & Specifications
  • Type: Overload relay
  • Manufacturer: Siemens
  • Family: 3RB3
  • Item Subcategory: Contactors
  • Section: Overload relay
  • Amperage Rating: 20 to 80 A
  • Voltage Rating: Up to 690 VAC
  • Poles: 3
  • Mounting Type: Screw mount on Size S2 contactors
  • Trip Class: 5E to 30E
  • Contact Form: 1NC-1NO auxiliary contacts
  • Main Circuit Terminals: Screw
  • Auxiliary Circuit Terminals: Screw
  • Reset Type: Manual and automatic reset
  • Internal Ground Fault Detection: Yes
  • Dimensions: 99 mm H x 55 mm W x 104 mm D
  • Weight: 0.895 lb
  • Country of Origin: Czechia
  • Certification: Lead CAS-No. 7439-92-1 Greater Than 0, 1 % (w/w), REACH Art 33 Duty to Inform According to the Current List of Candidates, RoHS 07/01/2006, WEEE (2012/19/EU) Take-Back Obligation


Product Identification
  • UPC: 887621914745