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Siemens TLM812RCU - Molded Case Breaker 125A 480V AC

United Fuses
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Siemens TLM812RCU is a thermal-magnetic molded case circuit breaker designed for overcurrent and short-circuit protection in industrial power distribution systems. It is rated for 480V AC and carries a current rating of 125A, with a compact frame size suitable for panelboard mounting. The breaker weighs 5.19 lb and features a lug-type terminal connection for secure wiring. It complies with UL 489 and CSA standards, ensuring reliable performance in demanding environments. Typical applications include motor control centers, lighting panels, and branch circuit protection in manufacturing facilities.

Key Features & Specifications
  • Type: Thermal-magnetic molded case circuit breaker
  • Voltage Rating: 480V AC
  • Current Rating: 125A
  • Weight: 5.19 lb
  • Terminal Connection: Lug type
  • Standards: UL 489, CSA
  • Applications: Motor control centers, lighting panels, branch circuit protection
  • Breaker Type: Molded case
  • Trip Type: Thermal-magnetic
  • Frame Size: Compact
  • Poles: 3
  • Phase: 3
  • Frequency Rating: 60 Hz
  • Circuit Breaker Mounting Style: Panelboard
  • Installation Type: Fixed
  • Enclosure: Open
  • Wire Size: 14 AWG to 2/0 AWG
  • Amperage Maximum: 125A
  • Amperage Minimum: 125A
  • AIC Rating: 65 kAIC at 480V AC
  • Connection: Lug
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and short-circuit protection
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper
  • Panel Style: NEMA 1
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • 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: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 125A
  • Dist Voltage: 480V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 125A
  • Full Load Amp Minimum: 125A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Coil Voltage Maximum: Not applicable
  • Wire: Copper
  • Amperage Maximum: 125A
  • Amperage Minimum: 125A
  • Nema Rating: NEMA 1
  • Switch Style: Not applicable
  • Wire Size: 14 AWG to 2/0 AWG
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Panelboard
  • Terminal Connection: Lug
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA
  • Compatible Frames: Siemens TLM series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: TLM
  • Current Rating: 125A
  • 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: 783643123456
  • GTIN: 00783643123456