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Box Extensions

Browse Box Extensions products from leading manufacturers in Industrial Automation.

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Part No.DescriptionManufacturerRFQ
128#8128 4""Lx4""Wx1-1/2""D Ring Octagon Extension w/ 4 (1/2"") Conduit KnockoutsRaco
201#201 4""Lx4""Wx1-1/2""D Ring Square Box Extension w/ 12 (1/2"") Conduit KnockoutsRaco
250#250 4-11/16""Lx4-11/16""Wx1-1/2""D Box Extension w/ 8 (1/2"") & 4 (3/4"") Conduit KnockoutsRaco
5388-04-1/2""Lx4-1/2""Wx2-5/8""D Weatherproof Two-Gang Box Extension w/ 5 (3/4"") Threaded OutletsBell
5399-05-1/4""Lx3-1/2""Wx1-1/2""D Weatherproof Single-Gang Extension Adapter w/ 2 (1/2"") Threaded OutletsBell
5405-05-1/4""Lx3-1/2""Wx1-1/2""D Weatherproof Single-Gang Extension Adapter w/ 6 (3/4"")Threaded OutletsBell
5406-04-1/2""L x 2-3/4""W x 1""D Weatherproof Single-Gang Extension AdapterBell
5407-04-21/32""L x 4-21/32""W x 1-1/32""D Weatherproof Two-Gang Box ExtensionBell
5412-05-1/4""Lx3-1/2""Wx1-1/2""D Swing Arm-Weatherproof Single-Gang Extension Adapter w/ 2 (1/2"") Threaded OutletsBell
665#665 4""Lx2""Wx1-7/8""D Box Extension w/ 8 (1/2"") Conduit KnockoutsRaco
653#653 4""Lx2""Wx1-1/2""D Box Extension w/ 8 (1/2"") Conduit KnockoutsRaco
8203#8203 4""Lx4""Wx1-1/2""D Ring Square Box Extension w/ 8 (1/2"") & 4 (3/4"") Conduit KnockoutsRaco

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Americas Fastest Growing Private Company
ASA Member
NBAA Member
ISO 9001:2015 & AS9120B
Cage Code 6RE77
ITAR
eCustoms Visual Compliance
D-U-N-S Number 069876325
FAA 0056 B Accredited
ESD S20.20
AS 6081:2012
NIST 800-171 Compliance
Top Distributors 2018
Top Distributors 2020
Top Distributors 2025

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