Square D QO QO250PSPD 50kA 1-Phase Surge Protective Device – Plug-On Neutral – 120/240V

The Square D QO250PSPD is a 1-phase surge protective device (SPD) engineered for QO plug-on neutral load centers. Manufactured by Schneider Electric under the Square D brand, it safeguards sensitive electronics and branch circuits from voltage spikes caused by lightning, utility switching, or internal transients. With a 50kA surge current rating and 20kA nominal discharge current, this SPD ensures reliable protection while its plug-on neutral design allows fast, secure installation.

Voltage and Ratings

• Voltage Rating: 120/240 Volts AC
• Surge Current: 50kA
• Nominal Discharge Current: 20kA
• Short-Circuit Rating (SCCR): 22kA
• Maximum Continuous Operating Voltage (MCOV): 150V

Key Specifications

• Device Type: Surge Protective Device (SPD)
• Mounting Type: Plug-On Neutral / Plug-In
• Number of Phases: 1-Phase
• Wiring Configuration: 3-Wire (Phase and Neutral)
• Application: Protection of sensitive electronics and branch circuits in QO load centers
• Enclosure Rating: NEMA 2
• Enclosure Material: Black Plastic

Technical Specifications

• Ambient Operating Temperature: Up to 149°F
• Dimensions (H × W × D): 4.0 in × 1.5 in × 2.6 in
• Weight: 0.49 lbs
• Certifications: UL Listed, UL 1449 4th Edition, CSA C22.2 No. 269.1

Product Data

• • Brand: Square D
  • Manufacturer: Schneider Electric
  • Model Number: QO250PSPD
  • UPC: 785901475668

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