Hubbell HBLFRBK Single Pole Female Connector 400A

Product Description

The HUBBELL WIRING DEVICE-KELLEMS HBLFRBK is a single-pole female connector designed for high-current electrical applications requiring reliable, secure termination. Rated at 400 amps and compatible with voltages up to 250 VDC or 600 VAC, this connector uses a threaded stud termination method for a solid, low-resistance connection. It accepts wire up to 4 AWG and carries NEMA ratings of 3R, 4X, and 12, making it suitable for demanding environments including wet, corrosive, and dust-tight conditions. Licensed electricians and industrial maintenance technicians are the primary installers of this component.

This connector is well suited for industrial power distribution, temporary power setups, and heavy-duty electrical service connections where single-pole, high-amperage disconnects are required. The female end style mates with compatible single-pole male plugs in the same series. Its environmental ratings make it appropriate for both indoor and outdoor installations in commercial and industrial settings where moisture and contaminant ingress protection is a requirement.

Key Features

• 400-amp continuous current rating for high-load applications
• Dual voltage rating: 250 VDC and 600 VAC
• Threaded stud termination for secure, vibration-resistant connections
• Accepts up to 4 AWG maximum wire size
• NEMA 3R, 4X, and 12 rated for wet, corrosive, and dust-tight environments
• UL Listed and cUL Listed for compliance with North American safety standards

Compatibility

Designed for use with compatible single-pole male plugs and connector systems rated for high-amperage industrial power circuits. Consult the Hubbell single-pole connector series documentation to confirm mating plug compatibility before installation.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the breaker or disconnect before making any termination connections. Ensure conductor size and insulation rating are appropriate for the 400-amp load and the installed voltage before torquing the threaded stud connection. Verify NEMA enclosure requirements for the installation environment prior to final assembly.