Square D 5NR251 - Miniature Circuit Breaker 30A 2-Pole 250VAC
Square D 5NR251 - Miniature Circuit Breaker 30A 2-Pole 250VAC

Square D 5NR251 - Miniature Circuit Breaker 30A 2-Pole 250VAC

Square D
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Square D 5NR251 is a 250-volt AC, 30-amp, 2-pole, 10kAIC rated miniature circuit breaker designed for branch circuit protection in Square D QO load centers and panelboards. This thermal-magnetic breaker provides overload and short-circuit protection for residential and light commercial electrical systems. The unit features a compact 1-inch per pole construction with a 1.13 lb weight, manufactured in Mexico by Schneider Electric. It complies with UL 489 and CSA standards for safety and performance. Typical applications include lighting, appliance, and general-purpose power distribution circuits in 120/240VAC single-phase systems.

Key Features & Specifications
  • Type: Miniature Circuit Breaker
  • Voltage Rating: 250 VAC
  • Current Rating: 30 Amps
  • Dimensions: 1-inch per pole width
  • Standards: UL 489, CSA
  • Applications: Branch circuit protection in QO load centers and panelboards
  • Switch Type: Thermal-magnetic
  • Configuration: 2-pole
  • Coil Voltage Maximum: N/A
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: N/A
  • Phase: 1-phase
  • Voltage: 120/240 VAC
  • Amperage: 30 A
  • AIC rating: 10 kAIC @ 120/240 VAC
  • Connection: Plug-on
  • Poles: 2
  • Protection: Overload and short-circuit
  • Functions: Branch circuit protection
  • Frame Size: QO
  • Trip Type: Thermal-magnetic
  • Panel Type: QO load centers and panelboards
  • Breaker Type: Miniature
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • 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: Plug-on
  • Hz: 50/60 Hz
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 30 A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: N/A
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA
  • Compatible Frames: QO
  • Installation Type: Plug-on
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: QO
  • Current Rating: 30 A
  • 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: 78590109928
  • GTIN: 00785901099284