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Square D PI1QO - Miniature Circuit Breaker 1A 120/240V

Square D
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The Square D PI1QO is a miniature circuit breaker designed for overcurrent protection in industrial control panels and branch circuits. It is rated for 120/240 volts AC with a current rating of 1 amp and a 10 kA interrupting capacity at 240V. This single-pole, plug-on unit features a thermal-magnetic trip mechanism, a compact frame size, and a wire size range of 14-8 AWG, with a weight of 0.71 lb. It complies with UL 489 and CSA standards, ensuring reliable performance in commercial and light industrial applications. Typical uses include protecting control transformers, relays, and small motor circuits.

Key Features & Specifications
  • Type: Miniature Circuit Breaker, Thermal-Magnetic, Plug-On
  • Voltage Rating: 120/240V AC
  • Current Rating: 1 Amp
  • Dimensions: Compact frame size
  • Standards: UL 489, CSA
  • Applications: Industrial control panels, branch circuits, transformer protection
  • Switch Type: Toggle
  • Configuration: Single-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: 40°C
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 120/240V AC
  • Amperage: 1 Amp
  • AIC rating: 10 kA at 240V
  • Connection: Plug-On
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Thermal-Magnetic Trip
  • Frame Size: QO
  • Trip Type: Thermal-Magnetic
  • Panel Type: QO Load Centers
  • Breaker Type: Miniature Circuit Breaker
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not specified
  • Panel Style: Plug-On
  • 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: Plug-On
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Not applicable
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: 14-8 AWG
  • Amperage Maximum: 1 Amp
  • Amperage Minimum: 1 Amp
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: 14-8 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-On
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-Phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: QO
  • Installation Type: Plug-On
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: QO
  • Current Rating: 1 Amp
  • 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: 78590130977
  • GTIN: 00785901309772