We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Ivory steel extension box, rectangular, single gang

Hubbell Incorporated

Hubbell Incorporated HBL5751IVA Ivory Steel Extension Box

SKU CH-QNA4-JZYCY

Steel extension box compatible with HBL500, HBL700 and HBL750 series, CSA certified and UL listed

  • typeCable Management & Conduit
  • styleExtension
  • Extends raceway capacity for HBL500, HBL700 and HBL750 series
  • Steel construction protects wiring in surface-mount installations
  • Ivory finish matches existing ivory raceway components
  • Single-gang design fits standard device openings
  • CSA and UL certified for code-compliant installations

Extension box for HBL500 700 750 series

This ivory steel extension box belongs to the Series 500 700 750 range and adds a single gang to existing Hubbell raceway installations. It is designed for electricians and facility managers who need to extend a surface-mounted wiring run without replacing the entire channel.

Passive component with no thermal or power profile

The unit is a passive metal enclosure so it generates no heat produces no noise and draws no power during normal operation. Its steel construction simply protects the conductors inside while matching the colour and profile of the surrounding raceway.

Replaces damaged or missing single-gang extensions

It serves as a direct replacement for a broken or lost one-gang extension on HBL500 HBL700 or HBL750 raceway systems. The upgrade is worthwhile when the existing box is cracked corroded or when a new device location is required along the same run.

Highlights

  • Extends raceway capacity for HBL500, HBL700 and HBL750 series
  • Steel construction protects wiring in surface-mount installations
  • Ivory finish matches existing ivory raceway components
  • Single-gang design fits standard device openings
  • CSA and UL certified for code-compliant installations

Specifications

BrandHUBBELL WIRING DEVICE-KELLEMS
typeCable Management & Conduit
styleExtension

Questions about this item

How do I install the HBL5751IVA extension box onto an existing HBL500 raceway, and what step is often missed?

Mount the box onto the HBL500, HBL700, or HBL750 series raceway using the provided mounting holes; the step often missed is securing the box to the raceway before pulling wires through to avoid misalignment.

What maintenance or replacement will the HBL5751IVA steel extension box need over time?

The ivory steel box is CSA Certified and UL listed for durability; inspect the finish periodically for scratches or corrosion and replace the box if the steel shows rust or structural damage.

What is the first limit that appears when the HBL5751IVA extension box is used continuously in a high-fill raceway?

The single-gang, 4 1/2 in height by 2 7/8 in width interior volume limits the number of conductors allowed by fill calculations, which is reached before the steel housing shows thermal stress.

More in Cords / Cord Covers

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.