Eaton TWBS3 Thru-Wall Barrier - Elastomeric For Marine Applications
Part Number: TWBS3
Quick Summary
TWBS3 is a thru-wall barrier sealing block assembly that provides reliable cable and conduit sealing for marine enclosures. Engineers often struggle with maintaining integrity in harsh marine environments and tight installation windows, which can lead to downtime and non-compliance. This solution carries UL component certifications and area classifications suitable for Ordinary/Non-Hazardous Locations, with marine-application suitability as a core differentiator. The elastomeric, 3-frame-space design supports reliable performance while integrating with existing TW series systems. By emphasizing robust sealing, installation efficiency, and certified safety, TWBS3 helps procurement and engineering teams reduce risk and total cost of ownership in demanding maritime applications.
Product Information
Extended Description
TWBS3 Eaton: Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly, Elastomeric, 3 frame spaces required, For marine applications
Product Name
Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly
Catalog Number
TWBS3
UPC
782274277233
Product Length/Depth
11.38 in
Product Height
3.25 in
Product Width
7.25 in
Product Weight
19.45 lb
Area classification
Ordinary/Non-Hazardous Locations
Number of frame spaces required
3
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 - TWBS3
Feature: Elastomeric material provides resilient sealing in dynamic marine environments → Business Impact: Maintains enclosure integrity, reduces water intrusion, and lowers maintenance cycles → Application: Marine electrical enclosures exposed to vibration and moisture. Feature: Three frame spaces required for TWB configuration → Business Impact: Predictable sealing geometry supports consistent performance across installations → Application: Standardized integration with TW series components across multiple enclosures. Feature: 11.38 in length with 7.25 in width and 3.25 in height, plus 19.45 lb weight → Business Impact: Compact, sturdy footprint enables easier retrofit and handling, lowering installation time and shipping costs → Application: On-site installations where space and weight constraints matter, including retrofit projects. Feature: Elastomeric TWB sealing block assembly designed for ordinary/non-hazardous locations → Business Impact: Simplified compliance path and safer operation in non-hazardous marine settings → Application: Routine protective sealing without specialized hazardous-location requirements. Feature: Documentation and installation guidance via IF 1020 and Eaton specification sheets → Business Impact: Reduces guesswork, speeds up commissioning, and ensures correct installation practices → Application: Field technicians following standard installation procedures. Feature: UL component certifications and Canada firestop references → Business Impact: Strengthened regulatory compliance and risk mitigation for cross-border projects → Application: Shipyards, offshore platforms, and marine facilities requiring certified fire and conduit sealing. The combination of compatibility with TW series components and proven installation guidance supports industry-standard workflows, improving efficiency and total cost of ownership for marine electrical sealing projects.
Get a Quick Quote for a Eaton TWBS3
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton TWBS3?
Enquire Now
FAQs
TWBS3 is designed to be used with the TW series through-wall barrier system, requiring 3 frame spaces. Installation can be guided by the IF 1020 instruction sheet, ensuring proper seating, sealing integrity, and alignment with Eaton Crouse-Hinds TWB components for a reliable marine enclosure retrofit.
Key specifications include 11.38 in length, 3.25 in height, 7.25 in width, and a 19.45 lb weight, with elastomeric material and three frame spaces required. These dimensions support predictable sealing in marine enclosures and compatibility with standard TWB configurations.
Yes, TWBS3 is rated for Ordinary/Non-Hazardous Locations. It carries UL component certifications and cross-border references (including Canada) that support compliant firestop and conduit sealing for non-hazardous marine environments, reducing compliance risk during audits.
Rely on UL Certification (Component) listings for the TWBS sealing devices, including multiple verification pages, and cross-reference with Canada firestop certifications. These attest to firestop integrity and safe operation in non-hazardous marine locations, aiding regulatory submissions and inspections.
TWBS3 offers durable elastomeric sealing reducing ingress risk and extending service intervals. Its installation guidance and standardized frame-space configuration shorten commissioning, cutting downtime and labor costs, while UL/Canada certifications improve risk management and project ROI in marine environments.