HUBBELL Back Box: For UL 1686 Pin & Sleeve Devices, 30 A, 0.75 in, Feed Through Hub
The HUBBELL MB303W Back Box is an aluminum enclosure designed for UL 1686 Pin & Sleeve Devices. It features a 30 A rating, a 0.75 in feed-through hub, and a straight configuration. This back box provides a grounded…
SKU 3G-OTH-17947
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Product Description
The HUBBELL MB303W Back Box is an aluminum enclosure designed for UL 1686 Pin & Sleeve Devices. It features a 30 A rating, a 0.75 in feed-through hub, and a straight configuration. This back box provides a grounded housing for compatible Hubbell pin and sleeve wiring devices.
Frequently Asked Questions
What is the HUBBELL MB303W Back Box used for?
The HUBBELL MB303W Back Box is an aluminum enclosure used to house and ground UL 1686 Pin & Sleeve Devices rated up to 30 A. It is commonly installed in industrial power distribution systems where a straight, feed-through hub configuration is required for secure cable entry and device mounting.
What are the specifications of the HUBBELL MB303W Back Box?
The HUBBELL MB303W Back Box is made of aluminum and rated for 30 A. It features a 0.75 in feed-through hub with a straight configuration. This enclosure is designed for UL 1686 Pin & Sleeve Devices and carries the manufacturer part number MB303W. It provides a grounded housing for compatible Hubbell wiring devices.
Where to buy the HUBBELL MB303W Back Box worldwide?
3G Electric supplies the HUBBELL MB303W Back Box to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this aluminum back box to any international destination.
How to install the HUBBELL MB303W Back Box?
Install the HUBBELL MB303W Back Box by mounting it to a suitable surface using the provided knockouts. Route cable through the 0.75 in feed-through hub and secure the Hubbell pin and sleeve device inside. Ensure all connections are properly grounded per local electrical codes. Always de-energize circuits before installation.
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3G Electric supplies HUBBELL back boxes. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.








