Reliance Controls PBN30 30A power inlet box 🔌

This nonmetallic inlet box accepts a 30-amp, 125/250 VAC generator connection and keeps the supply point tidy and accessible for backup power hookups. If you need a reliable outdoor inlet, this 30-Amp generator inlet box helps organize cords and protects the connection while offering generous wiring space for easier installation.

Key Points

The unit is built from a weather-resistant nonmetallic material that resists corrosion and reduces the chance of galvanic issues when used outdoors. It includes a sliding base that allows easier access to the inlet flange during wiring and maintenance, which can save time on site. 🔌

According to the manufacturer, the maximum continuous generator output supported is 7,500 watts and the inlet accepts up to 30 amps at 125/250 VAC. The design includes more than 100 cubic inches of internal wiring space, making it more forgiving when routing multiple conductors or larger gauge cables. ☔

Note that because the box is nonmetallic, grounding and mounting instructions from local electrical codes should be followed carefully. This product meets NEMA 3R requirements for outdoor protection against rain and sleet, but consider local exposure conditions when planning placement.

Technical Specifications

• Name: Reliance Controls PBN30 30-Amp NEMA 3R Power Inlet Box
• Maximum generator wattage: 7,500 watts
• Maximum input: 30 A @ 125/250 VAC
• Internal wiring space: more than 100 cubic inches
• Material: nonmetallic, weather-resistant enclosure
• Enclosure rating: NEMA 3R

Usage Recommendations

Position the inlet box where cord runs are short and protected from vehicle traffic or mowing equipment. For easier installations run conduit or cable entries so that the sliding base can be used to access the wiring compartment without removing the entire unit. For outdoor setups exposed to severe weather or coastal salt spray, plan periodic inspections since the nonmetallic housing trades off some impact resistance for corrosion resistance.

When connecting to a transfer switch or panel, ensure conductor sizes match the 30-amp rating and that all connections are tightened to the torque values recommended by the equipment manufacturer. For installations with multiple conductors in the box, take advantage of the spacious interior to keep terminations neat and to reduce strain on cable entries.