PRO PNR LC MB 20S/40C 1PH 150A

PRO PNR LC MB 20S/40C 1PH 150A – Product Description

🔌 What it is

This is a Siemens PRO Series residential load center (breaker panel) with a main breaker, designed for 150-amp service and expanded circuit capacity.

A matching real-world equivalent is typically listed as:

• Siemens PN2040B1150C / PN series 150A load center

🧾 Breaking down the code

• PRO PNR → PRO series panelboard / load center family
• LC → Load Center (breaker box)
• MB → Main Breaker (built-in disconnect for entire panel)
• 20S/40C →
  • 20 spaces (physical breaker slots)
  • up to 40 circuits using tandem breakers
• 1PH → Single-phase (standard residential 120/240V system)
• 150A → 150-amp main breaker rating

⚡ What it does

This panel:

• Receives incoming power from the utility (150A service)
• Provides a main shutoff breaker
• Distributes electricity to branch circuits (lights, outlets, appliances)
• Supports up to 40 circuits total

🏠 Typical use

• Medium-sized residential homes
• Homes upgraded from 100A service
• Garages or accessory buildings with moderate loads
• Houses without heavy 200A electrical demand (EVs, large HVAC arrays, etc.)