Square D QO-130M200P QO Series Single-Phase Convertible Main Load Center, NEMA 1

Square D QO Series Single-Phase Convertible Main Load Center, NEMA 1

The Square D QO Series Single-Phase Convertible Main Load Center is engineered for residential and light industrial electrical distribution, letting you install QO breakers, ground fault interrupters, arc fault interrupters, and surge arresters inside a single NEMA 1 indoor enclosure. This convertible main breaker (PoN) load center is available across main amp ratings from 100A to 200A, so contractors can match the panel to the service size on the job while relying on the same 22 kA short circuit current rating and lug-style electrical connections across every option. Every configuration in this UL Listed family is built for new construction and service upgrades where dependable, code-compliant distribution is required.

Key Features

• Amp Rating Range: Available in main breaker ratings of 100A, 150A, and 200A to fit a range of single-phase service sizes.
• Convertible Main Breaker (PoN): Field-convertible main breaker configuration provides installation flexibility for single-phase applications.
• Enclosure Rating: NEMA 1 indoor enclosure protects internal components in dry, indoor environments.
• Electrical Connection: Lugs-style terminations for straight-in wiring that saves wire, labor, and installation time.
• Short Circuit Current Rating: 22 kA rating delivers superior performance and durability under fault conditions across the family.
• Expanded Wiring Capacity: 50% more terminations for clutter-free wiring in crowded panel installations.
• Surge Protection Compatible: Compatible with the Square D QO Plug-on Neutral Whole Home SPD for whole-home surge protection.
• Operating Range: Rated for ambient air temperatures from -5°C to 40°C.
• Installation Torque: Cover tightening torque specification of 20 lb.in ensures proper assembly.

Certifications & Compliance

• UL Listed
• NEMA 1 Indoor Enclosure Rating

Technical Specifications

• Series: QO
• Configuration: PoN Convertible Main Breaker
• Amp Rating Options: 100A, 150A, 200A
• Warranty Period: 18 months
• Mercury Free: Yes

Typical Applications

• Residential Electrical Panel Upgrades and Service Changes
• Single-Phase Branch Circuit Protection
• New Construction Electrical Distribution
• Compatible with QO Breakers, GFCIs, AFCIs, and Surge Arresters
• Indoor Residential and Light Industrial Installations

Why Square D?

Square D QO load centers combine a UL Listed, NEMA 1-rated enclosure with a 22 kA short circuit current rating and lug-style connections built for straight-in wiring efficiency, across the full 100A to 200A amp rating range. The convertible main breaker (PoN) configuration, expanded termination capacity, and compatibility with the QO Plug-on Neutral Whole Home SPD make this load center family a reliable, code-compliant choice for professional electrical installations of any covered service size.