Eaton TWB3045 Thru-Wall Barrier - UL Certifications
Part Number: TWB3045
Quick Summary
The Eaton TWB3045 Thru-Wall Barrier seals cable openings in non-hazardous locations. Engineers often struggle to meet firestop and enclosure integrity without complicating installation. UL certification for firestop devices in the US and Canada, plus the ordinary/non-hazardous area classification, provide clear compliance pathways for plant upgrades. This elastomeric sealing block supports fast installation, robust sealing performance, and predictable operation under vibration, helping minimize leaks and unplanned downtime. Designed for rugged industrial environments, it integrates smoothly with TW series closures, trims, and standard conduit layouts to streamline procurement, field work, and ongoing maintenance.
Product Information
Extended Description
TWB3045 Eaton: Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly, Elastomeric, 3 frame spaces required, 4 openings in block, Opening size range: 1.250-1.500"
Product Name
Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly
Catalog Number
TWB3045
UPC
782274192314
Product Length/Depth
7.4 in
Product Height
11.4 in
Product Width
3.4 in
Product Weight
12.9 lb
Area classification
Ordinary/Non-Hazardous Locations
Opening size range
1.250-1.500"
Number of openings in block
4
Number of frame spaces required
3
Material
Elastomeric
Crouse-Hinds series Thru-Wall Barrier Cable and Conduit Sealing Device catalog page
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification
IF 904 - TWB Closure Kit for TW series Thru-Wall Barrier
IF 904 - TWB Closure Kit for TW series Thru-Wall Barrier
Eaton Specification Sheet - TWB3045
Elastomeric sealing material delivers durable, flexible seals that tolerate temperature variation and minor movement in wall penetrations. This reduces retrofit calls and maintenance costs while ensuring long-term enclosure integrity for control panels and electrical rooms. The TWB3045 supports four openings within three frame spaces, enabling consolidated penetrations in a single, compact block, which cuts installation time and simplifies cable management on new builds or remodels. Opening sizes range from 1.250 to 1.500 inches, accommodating common cable diameters and conduit fittings without custom fabrication, minimizing delays and inventory. With dimensions of 7.4 inches (L) by 11.4 inches (H) by 3.4 inches (W) and a weight of 12.9 pounds, the TWB3045 offers a predictable footprint that improves planning and site layout for retrofits and expansions. UL certifications for firestop devices in the US and Canada, alongside Ordinary/Non-Hazardous locations classification, help accelerate design approvals and regulatory compliance, reducing risk during project kickoffs. Compatibility with TW series closure kits and available installation instructions further streamline field work and reduce questions during handover to operations.
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FAQs
Installation starts with selecting the TWB3045 for four openings across three frame spaces. Follow the IF 904 TWB Closure Kit instructions for proper closure and sealing, ensuring the elastomeric seal seats evenly around each opening. Verify wall clearance and tighten components per Eaton guidance to achieve a compliant installation in ordinary/non-hazardous locations.
Key specs include four openings in the block, three frame spaces, elastomeric material, opening size range of 1.250-1.500 inches, and overall dimensions of 7.4 in L, 11.4 in H, 3.4 in W with a weight of 12.9 lb. Catalog number is TWB3045 and UPC is 782274192314, suitable for ordinary/non-hazardous locations.
Yes. TWB3045 is designed for ordinary/non-hazardous locations, with UL certifications for firestop devices in the US and Canada. This makes it appropriate for typical electrical rooms, control panels, and process enclosures where a reliable wall penetration seal is required.
TWB3045 carries UL certifications for firestop devices applicable to the US and Canada. This includes verification under UL’s firestop program, which helps ensure compliance during design reviews and field installations in non-hazardous settings.
TWB3045 is compatible with TW series closure kits, including IF 904, which streamlines installation and reduces part handling. The three-frame-space, four-opening design consolidates penetrations into a single block, improving site coordination, reducing labor time, and easing future expansion or rework in electrical rooms and wall penetrations.