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Square D FAL321001121 - Molded Case Breaker 100A 240V 3-Pole

Square D
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Square D FAL321001121 is a 100A, 3-pole molded case circuit breaker from the FAL Series, designed for overcurrent protection in industrial power distribution systems. It operates at 240VAC with a 10kA interrupting capacity and utilizes thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions for precise fault response. This feed-thru connection breaker weighs 4 lb and is constructed for panelboard mounting in three-phase applications. It meets industry standards for molded case breakers, ensuring reliable performance in commercial and light industrial environments. Typical applications include branch circuit protection, motor control centers, and lighting panels requiring 100A, 240V three-phase service.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic, LI (Long-Time and Instantaneous) Protection
  • Voltage Rating: 240V
  • Current Rating: 100A
  • Dimensions: Standard molded case breaker size
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, branch circuit protection, motor control centers
  • Switch Type: Non-fused
  • Configuration: 3-Pole, 3-Phase
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 4.5 x 3.5 x 3.5 in
  • Phase: 3
  • Voltage: 240V
  • Amperage: 100A
  • AIC rating: 10kA@240V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: FAL
  • Trip Type: Thermal-Magnetic
  • Panel Type: Panelboard
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper alloy
  • Panel Style: NEMA 1
  • Bus Type: Aluminum or copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: 1.5 in
  • Clas: Not applicable
  • Mounting: Panelboard
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: 100A
  • Dist Voltage: 240V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 100A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 100A
  • Amperage Minimum: 100A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: #14 to #1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-in or bolt-on
  • Terminal Connection: Feed-thru
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: FAL
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: FAL
  • Current Rating: 100A
  • 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: 785901234567
  • GTIN: 00785901234567