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Siemens THQD32225ST8LL - Molded Case Breaker 225A 480V

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Siemens THQD32225ST8LL is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 480V AC at 225A with a 25kAIC interrupting capacity, featuring a thermal-magnetic trip mechanism for reliable short-circuit and overload protection. This unit weighs 5.19 lb and is constructed with a compact frame for panelboard mounting, utilizing a bolt-on connection type. It complies with UL 489 and CSA standards for safety and performance. Typical applications include branch circuit protection in commercial and light industrial switchboards and load centers.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, bolt-on connection
  • Voltage Rating: 480V AC
  • Current Rating: 225A
  • Dimensions: Compact frame size for panelboard mounting
  • Standards: UL 489, CSA
  • Applications: Branch circuit protection in commercial and light industrial power distribution
  • Switch Type: Thermal-magnetic
  • Configuration: Three-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 480V AC
  • Amperage: 225A
  • AIC rating: 25kAIC at 480V AC
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent (overload and short-circuit)
  • Functions: Circuit protection
  • Frame Size: Compact
  • Trip Type: Thermal-magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panelboard
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 225A
  • Dist Voltage: 480V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 225A
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Open (for panelboard installation)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 225A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not specified
  • Switch Style: Thermal-magnetic
  • Wire Size: Not specified
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Bolt-on
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA
  • Compatible Frames: Siemens panelboards
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: Compact
  • Current Rating: 225A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not provided
  • GTIN: Not provided