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Siemens 3UB8123-4MW2 - Solid State Overload Relay 250-750A

United Fuses
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Save $-212.80
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Siemens 3UB8123-4MW2 is an ESP200 solid state overload relay designed for motor protection in three-phase applications. This relay provides precise overload protection with a current rating of 250-750A and features switchable Class 5 through 30 trip characteristics for flexible application. The unit weighs 5.19 lb and utilizes a switchable direct mounting style for integration with motor starters. It complies with RoHS standards and is built for reliable performance in industrial environments. Typical applications include motor control centers and starter enclosures requiring solid state protection.

Key Features & Specifications
  • Type: Solid State Overload Relay
  • Family: 3UB
  • Current Rating: 250-750A
  • Phase: 3
  • Circuit Breaker Mounting Style: Switchable Direct
  • Compatible Frames: Motor Starters
  • Protection: Solid State
  • Standards: RoHS
  • Weight: 5.19 lb
  • Full Load Amp Range: 250-750 Amps
  • Frame Size: A1
  • Trip Class: Class 5 to 30 (Switchable)
  • Current Transformer: Included


Product Identification
  • UPC: 66264389726
  • GTIN: 00662643897265