Hubbell 5737IVA Single Gang Extension Box Ivory

Product Description

The HUBBELL 5737IVA is a single-gang extension box finished in ivory, designed to extend the depth of an existing single-gang wall box. This type of extender mounts between the original box and the cover plate, giving electricians the additional space needed to accommodate wiring that would otherwise crowd the device. It is commonly installed during renovation and retrofit work where devices or wiring volume exceeds the capacity of the flush-mounted box already in the wall.

This extension box is suited for residential and light commercial electrical installations where existing single-gang boxes require additional cubic-inch capacity. It is a practical solution in retrofit and remodel scenarios where cutting a deeper box into the wall is not feasible. The ivory finish coordinates with standard ivory-toned wallplates and cover plates.

Key Features

• Single-gang configuration fits standard single-gang box openings
• Extension design adds depth without replacing the existing box
• Ivory finish for coordination with ivory devices and cover plates
• Compatible with HBL-500, HBL-700, and HBL-750 series products
• Designed for retrofit and remodel electrical applications

Compatibility

Compatible with HUBBELL HBL-500, HBL-700, and HBL-750 series. Designed as an OEM-style extension box for use with standard single-gang wall box installations.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit at the panel and verify with a voltage tester before beginning work. The extension ring mounts directly to the existing box using the existing hardware, and the device or cover plate then fastens to the extender. Do not exceed the combined cubic-inch fill capacity of the original box and the extension ring as calculated per NEC box fill requirements.

Technical Specifications

• Configuration: Single Gang
• Type: Extension Box
• Finish: Ivory

Standard Information

• Brand: HUBBELL
• Manufacturer Part Number: 5737IVA