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Cutler Hammer LT3400TA - Trip Unit 400A 690V (Series C)

Cutler Hammer
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The Cutler Hammer LT3400TA is a Series C thermal magnetic trip unit designed for overcurrent protection in industrial power distribution systems. It provides LI (Long-Time and Instantaneous) protection functions, rated for 690V AC and 400A continuous current, with a 3-pole configuration. This compact unit measures 1 in x 1 in x 1 in and weighs 1 lb, constructed for compatibility with LW, HLW, and LWC frame circuit breakers. It is UL Listed, ensuring compliance with North American safety standards for electrical equipment. Typical applications include motor control centers, switchboards, and panelboards requiring reliable thermal magnetic protection in manufacturing and process industries.

Key Features & Specifications
  • Type: LT Trip Unit, Thermal Magnetic
  • Voltage Rating: 690V AC
  • Current Rating: 400A (Minimum 400A, Maximum 400A)
  • Dimensions: 1 in x 1 in x 1 in (Length/Depth x Height x Width)
  • Standards: UL Listed
  • Applications: Industrial power distribution, motor control centers, switchboards
  • Switch Type: Thermal Magnetic Trip Unit
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3-Phase
  • Voltage: 690V
  • Amperage: 400A
  • AIC rating: Not specified
  • Connection: Not specified
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: Series C
  • Trip Type: Thermal Magnetic
  • Panel Type: Not specified
  • Breaker Type: Not specified
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not specified
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: 400A
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: UL Listed
  • Compatible Frames: LW, HLW, LWC
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: Series C
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 78667955634
  • GTIN: 00786679556344