Cutler Hammer BA21A - 100A 3-Pole Circuit Breaker (600V AC)
Cutler Hammer BA21A - 100A 3-Pole Circuit Breaker (600V AC)

Cutler Hammer BA21A - 100A 3-Pole Circuit Breaker (600V AC)

Cutler Hammer
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Cutler Hammer BA21A is a heavy-duty industrial circuit breaker designed for overcurrent protection in power distribution systems. This unit is rated for 600V AC maximum and carries a continuous current rating of 100A, with a robust interrupting capacity suitable for high-fault applications. The breaker measures 4.9 inches in depth, 3.4 inches in height, and 3.6 inches in width, weighing 0.75 lb, and features a compact molded case construction for panelboard mounting. It complies with UL 489 and CSA standards for safety and performance in commercial and industrial environments. Typical applications include motor control centers, lighting panels, and branch circuit protection in manufacturing facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, non-fusible
  • Voltage Rating: 600V AC
  • Current Rating: 100A
  • Dimensions: 4.9 in x 3.4 in x 3.6 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, motor control centers, lighting panels
  • Switch Type: Toggle handle
  • Configuration: 3-pole, 3-phase
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 5.5 in x 4.0 in x 4.0 in (estimated)
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 100A
  • AIC rating: 10kA @ 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: 100A frame
  • Trip Type: Fixed 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 contacts
  • Panel Style: Flush mount
  • Bus Type: Plug-on
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C (Class H)
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: 2.5 in (typical)
  • Clas: Not applicable
  • Mounting: Panelboard plug-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: 50 HP @ 480V (typical)
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 100A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 100A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open (no enclosure)
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 100A
  • Amperage Minimum: 0A
  • Nema Rating: 1 (general purpose)
  • Switch Style: Toggle
  • Wire Size: #14 AWG to #2 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: Cutler Hammer CH series
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • Current Rating: 100A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • 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: 78667800319
  • GTIN: 00786678003191