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Siemens F38B - Thermal Magnetic 3-Pole 600V 100A LI Protection

Siemens
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Siemens F38B Circuit Breaker - Thermal Magnetic 3-Pole 600V 100A LI Protection The Siemens F38B is a 3-pole thermal magnetic circuit breaker designed to provide long-time and instantaneous (LI) protection for industrial power distribution systems. Rated for 600V AC and 100A, this unit delivers reliable overcurrent and short-circuit interruption for branch circuits and feeder applications. Weighing 28.065 lb, the breaker features a robust molded case construction with a compact frame size suitable for panelboard and switchboard installations. It complies with UL 489 and CSA standards, ensuring safe operation in demanding environments. Typical applications include motor control centers, lighting panels, and general-purpose industrial loads requiring precise thermal-magnetic trip coordination.

Key Features & Specifications
  • Type: Thermal magnetic molded case circuit breaker
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Poles: 3
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 28.065 lb
  • Standards: UL 489, CSA
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Molded case
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Varies by packaging
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA @ 600V AC
  • Connection: Line and load lugs
  • Frame Size: F-frame
  • Trip Type: Thermal magnetic
  • Panel Type: Industrial panelboard
  • Breaker Type: F38B
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: #14 to #2 AWG
  • Metal Type: Copper alloy contacts
  • Panel Style: NEMA 1
  • Bus Type: Copper
  • Fuse Class: N/A
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Fixed
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: 50 HP @ 600V
  • Aux Contacts: Optional
  • CPT: N/A
  • Full Load Amps: 100A
  • Dist Voltage: 600V
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open style
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: Copper
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: NEMA 1
  • Switch Style: Toggle
  • Wire Size: #14 to #2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: F-frame
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: F
  • Current Rating: 100A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 783643227149
  • GTIN: 00783643000000