50 Amp Generator Power Inlet Box NEMA SS250P Weatherproof outdoor power inlet for 125/250 Volt generator connections Rated 50 Amp, up to 12500 Watts Compatible with 3prong NEMA SS250P generator cords and standard transfer switches Why this inlet box matters Provides a neat, reliable way to connect a portable generator to a building transfer switch without running loose extension cords. Keeps the inlet protected from rain, dirt, and debris for dependable outdoor use. Sized and rated to handle common portable generators and 50 Amp transfer switch circuits, supporting up to 12500 Watts at 125/250 Volt. Key benefits at a glance Easy generator hookup: Accepts standard 3prong NEMA SS250P generator cords for fast, secure connections to a transfer switch. Weatherready design: Built for outdoor installation so the inlet remains accessible and protected when a generator is connected. power capacity: 50 Amp rating and 125/250 Volt compatibility support heavy loads and a broad range of appliances and tools. Cleaner installation: Wallmounted inlet provides a permanent connection point, improving safety and tidiness compared with temporary cords. Features and specifications Configuration: NEMA SS250P 3prong inlet compatible with 50 Amp generator cords Voltage: 125/250 Volt Power capacity: Up to 12500 Watts Intended use: Outdoor power inlet for connection to a transfer switch and generator Construction: Durable, weatherresistant housing suitable for exterior mounting Compatibility and fit Designed to work with standard 50 Amp portable generators and transfer switches that accept a NEMA SS250P 3prong inlet cord. Ideal when a dedicated inlet is required for routine backup power or temporary power setups. Typical use scenarios Home emergency backup: Install next to a transfer switch to quickly connect a portable generator during power outages and restore essential circuits. Job site or workshop power: Provide a secure outdoor inlet for connecting a generator to electrical distribution panels or tool circuits at temporary work locations. RV, cabin, or outbuilding hookup: Create a fixed, weatherproof connection point for a generator to power appliances and equipment without running long extension cords. What you get A 50 Amp, 125/250 Volt outdoor power inlet in NEMA SS250P configuration that simplifies generatortotransferswitch connections, protects the inlet from weather, and supports up to 12500 Watts. Installation notes Mount near the transfer switch or designated point of generator connection. Follow local electrical codes and practices for wiring and grounding when connecting the inlet to the transfer switch or panel.