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Siemens 3TH2031-0BB4 - 4-Pole Auxiliary Relay (24V Coil, 6A)

Siemens
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Siemens 3TH2031-0BB4 is a compact contactor relay designed for auxiliary switching and control functions in motor starter circuits. It operates with a coil voltage of 24V AC/DC and features a 4-pole, normally open (NO) contact configuration rated for 6 A at 600 V. The relay is constructed with a robust thermoplastic enclosure and silver-cadmium oxide contacts for reliable performance, complying with international standards including IEC and UL for industrial safety. Its typical applications include controlling contactor coils, signaling devices, and interlocking circuits in automation panels, machine tools, and HVAC systems.

Key Features & Specifications
  • Type: 4-pole auxiliary contactor relay with normally open (NO) contacts
  • Voltage Rating: 24V AC/DC (coil)
  • Current Rating: 6 A at 600 V (contact)
  • Dimensions: Compact design per Siemens SIRIUS system
  • Standards: IEC, UL, cULus
  • Applications: Motor starter auxiliaries, control circuits, automation panels
  • Configuration: 4 NO
  • Coil Voltage Maximum: 24V AC/DC
  • Mounting: DIN rail mountable
  • Enclosure: Thermoplastic
  • Contact Material: Silver-cadmium oxide (AgCdO)
  • Weight: 0.4752 lb


Product Identification
  • UPC: 75455418964
  • GTIN: 00754554189642