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Hubbell MB303W

Metallic Back Box, Pin and Sleeve Insulgrip, Box, Feed Through, 30A, 3/4"

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Hubbell MB303W Metallic Back Box, Pin and Sleeve Insulgrip, Box, Feed Through, 30A, 3/4" — General Accessories
Manufacturer catalogue image
Hubbell MB303W Metallic Back Box, Pin and Sleeve Insulgrip, Box, Feed Through, 30A, 3/4" — General Accessories
Hubbell MB303W Metallic Back Box, Pin and Sleeve Insulgrip, Box, Feed Through, 30A, 3/4" — General Accessories
Hubbell MB303W Metallic Back Box, Pin and Sleeve Insulgrip, Box, Feed Through, 30A, 3/4" — General Accessories

Product Description

Heavy Duty Products, Insulgrip Pin and Sleeve Devices, Industrial Grade, Accessories, Back Box, For 30A 3/4" NPT Hub, Feed Thru, Mounting ScrewsIncluded, Gray Cast Aluminum
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Offer details

Best offer from:
Trusted supplier — United States, member since 2023
Availability:
3 pcs.
In-Stock
Updated at: 05-09-2026
Warranty:
12 months
Condition:
New Factory Sealed
New Factory Sealed - A brand-new, unused, unopened, undamaged item in its original manufacturer-sealed packaging.
The Seller is responsible for shipping the product and invoicing

Specifications

Brand
Hubbell
Accessory Item
Metallic Back Box
Flammability
UL94-5VA and V-0 classification.
Max Working Voltage
600V AC RMS
For Use With
30A Insulgrip Devices
Product Identification
Identification and ratings are a part of the external label and molded into the receptacle mount.
Assembly Screws
Stainless Steel (300 series)

Available Offers

(2)
MB303W Hubbell, General Accessories

Hubbell

Available:
2 pcs.
In-Stock
Updated at: 05-09-2026
Offer from:
Trusted supplier — United States, member since 2022, 50–99 employees
Warranty:
2 months
Send Inquiry

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Documents

Data Sheet

Datasheet for Hubbell MB303W, including specifications and features.

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CAD Models

3D CAD model and technical drawings, ready for your design software.

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These boxes are made of cast aluminum, suitable for IP54 requirements, and are finished with enamel paint. These boxes withstand a 500-hour salt spray test as well as UL raintight and external icing tests.

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General Accessories