Eaton TWBS2063 Thru-Wall Barrier - Marine Applications
Part Number: TWBS2063
Quick Summary
TWBS2063 is a thru-wall barrier sealing block assembly for marine cable and conduit sealing. Engineers frequently battle water ingress, tight installations, and time-consuming field sealing in harsh environments. It carries UL component certifications (including conduit sealing) and Canada fire-stop approvals, with ordinary/non-hazardous location classification. Elastomeric construction, compact form, and two frame spaces simplify installation while preserving seal integrity across six openings. With these features, the TWBS2063 supports compliant, reliable marine enclosures and reduces total installed cost through faster commissioning and fewer remedial visits. With standard accessories, the TWBS2063 aligns with TW series components for marine electrical assemblies, ensuring compatibility and expedited procurement. Inline opening size range of 0.750 to 1.000 inches supports flexible seal routing across six openings.
Product Information
Extended Description
TWBS2063 Eaton: Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly, Elastomeric, 2 frame spaces required, 6 openings in block, Opening size range: 0.750-1.000", For marine applications
Product Name
Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly
Catalog Number
TWBS2063
UPC
782274277202
Product Length/Depth
11.38 in
Product Height
3.25 in
Product Width
7.25 in
Product Weight
8.25 lb
Area classification
Ordinary/Non-Hazardous Locations
Opening size range
0.750-1.000"
Number of openings in block
6
Number of frame spaces required
2
Material
Elastomeric
Type
For marine applications
Crouse-Hinds series Thru-Wall Barrier Cable and Conduit Sealing Device catalog page
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification (Component)
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification (Component)
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification (Component)
IF 1020 - TWBS Sealing Block for TW series Thru-Wall Barrier
Eaton Specification Sheet - TWBS2063
The elastomeric sealing blocks used in TWBS2063 deliver robust moisture and dust sealing for marine enclosures, supporting resilient operation under vibration and temperature swings. That material choice translates into longer field life and fewer reseal events, reducing maintenance cycles in harsh coastal or offshore environments. Additionally, the two frame spaces simplify alignment during initial installation and improve gasket performance across repeated thermal cycles. Six openings in the block accommodate multiple cables or conduits, while an opening size range of 0.750-1.000 inches supports common diameters. This versatility reduces the need for adapters, speeding up field work and minimizing inventory complexity. For marine electrical installations, that means fewer part numbers to track and easier customization on site. Two frame spaces required ensures proper alignment within the TW barrier family, enabling consistent gasket compression. The result is repeatable installation, lower risk of leaks, and smoother onboarding of maintenance crews. This compatibility simplifies procurement, as teams can standardize on Eaton TW components across projects. Elastomeric construction provides temperature resilience and chemical compatibility, ensuring marine-grade performance. Design supports ordinary/non-hazardous locations. Installation and documentation are readily accessible via Eaton's catalogs and instruction sheets. The included resources, such as IF 1020 instruction sheets and the TWBS2063 datasheet, streamline on-site setup. These references help technicians verify fit, torque, and sealing performance before energizing systems. Having official documentation reduces commissioning time and supports audit-ready maintenance records. The physical dimensions place TWBS2063 at 11.38 inches long, 3.25 inches high, and 7.25 inches wide, with a weight of 8.25 pounds. Weight and size information aids enclosure planning and shipboard rack layout during design reviews. The seal block is designed to integrate with Eaton Crouse-Hinds TW series components for standardized procurement and supply chain efficiency.
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FAQs
Yes. TWBS2063 is designed to integrate with Eaton Crouse-Hinds TW series barrier assemblies, sharing frame spacing and mounting interfaces. This compatibility simplifies procurement, reduces part divergence on projects, and helps maintain consistent sealing performance across enclosures. For best results, pair the TWBS2063 with appropriate TW framing and follow the IF 1020 installation guide during mounting.
TWBS2063 provides six openings in the barrier block, with an opening size range of 0.750 to 1.000 inches. The block requires two frame spaces for proper installation, and the elastomeric material delivers resilient sealing. Overall dimensions are 11.38 inches in length, 3.25 inches in height, and 7.25 inches in width, with a weight of 8.25 pounds.
Yes. TWBS2063 is specifically designed for marine applications, offering elastomeric sealing for cable and conduit penetrations in ordinary/non-hazardous locations. Its marine-ready construction, alongside UL component and Canada fire-stop certifications, supports durable performance in shipboard and offshore enclosures while helping regulators and auditors verify compliance.
TWBS2063 carries UL component certifications for conduit sealing devices and Canada fire-stop approvals, with an area classification of Ordinary/Non-Hazardous Locations. These certifications help ensure regulatory compliance, safety, and reliability in non-hazardous marine installations. Access to certification documents is available via the provided UL and Eaton resources.
Using TWBS2063 can reduce commissioning time due to pre-engineered six-port openings and straightforward two-frame-space installation, lowering field labor and change-out delays. The elastomeric seal extends service life by resisting moisture ingress and vibration, reducing reseal events and maintenance visits in demanding marine environments, which translates to lower total cost of ownership over time.