Eaton TWB4036 Thru-Wall Barrier - Elastomeric, 3 Openings
Part Number: TWB4036
Quick Summary
The Eaton TWB4036 Thru-Wall Barrier sealing block assembly provides elastomeric sealing for through-wall penetrations in industrial environments. This solution addresses the common pain point of ensuring reliable seals around multiple openings while keeping installation simple and cost-effective. UL certifications (Component) support compliance in US and Canada, and the product is specified for Ordinary/Non-Hazardous Locations. The four-frame design with three openings and elastomeric material enables compact, scalable sealing that fits standard TW series penetrations, improving field reliability and accelerating panel build-outs. Designed to integrate with Eaton's installation instructions and datasheets, it helps procurement and maintenance teams manage risk and ensure consistent performance.
Product Information
Extended Description
TWB4036 Eaton: Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly, Elastomeric, 4 frame spaces required, 3 openings in block, Opening size range: 1.750-2.000"
Product Name
Eaton Crouse-Hinds series Thru-Wall Barrier TWB sealing block assembly
Catalog Number
TWB4036
UPC
782274192338
Product Length/Depth
13.5 in
Product Height
4.5 in
Product Width
7.88 in
Product Weight
15.6 lb
Area classification
Ordinary/Non-Hazardous Locations
Opening size range
1.750-2.000"
Number of openings in block
3
Number of frame spaces required
4
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 (Component)
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification (Component)
Thru-Wall Barrier Cable and Conduit Sealing Device UL certification (Component)
IF 840B - TWB Sealing Block for TW series Thru-Wall Barrier
IF 840B - TWB Sealing Block for TW series Thru-Wall Barrier
Eaton Specification Sheet - TWB4036
Feature → Business Impact → Application: Elastomeric material provides resilient sealing that tolerates temperature and vibration, reducing ingress and leaks while extending service life in control panels. This translates to lower maintenance costs and fewer field deviations during installation, boosting overall uptime for machinery and processes. Application-wise, it suits through-wall penetrations common in motor control centers and junction boxes in ordinary locations. Feature → Business Impact → Application: Three openings within a four-frame layout enables compact penetrations without a large panel footprint, enabling more efficient cabinet design and easier cable management. This supports faster assembly and testing, particularly in tight equipment rooms where space is at a premium. Feature → Business Impact → Application: Opening size range of 1.750–2.000 inches covers a broad set of cables and conduits, minimizing the need for adapters and reducing part variety. Use TWB4036 to standardize penetrations across projects, improving procurement and inventory control. Feature → Business Impact → Application: Elastomeric barrier in a four-frame system enhances compatibility with TW series installations, simplifying retrofits and new builds alike while maintaining compliance with non-hazardous location requirements. Feature → Business Impact → Application: UL component certifications and clear area classification help meet regulatory expectations, reducing risk during audits and enabling smoother cross-market deployment. Feature → Business Impact → Application: Installation resources, including IF 840B and IF 904 instruction sheets and the Eaton specification sheet, streamline commissioning and minimize field errors, delivering faster time-to-operation and reliable sealing outcomes.
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FAQs
The TWB4036 supports three openings with an opening size range of 1.750 to 2.000 inches. It requires four frame spaces, enabling a compact yet robust barrier for through-wall penetrations. The elastomeric material provides a tight seal around cables and conduits, which helps minimize leaks and maintenance.
TWB4036 measures 13.5 inches in length, 4.5 inches in height, and 7.88 inches in width, with a weight of 15.6 pounds. These dimensions support planning for a four-frame, three-opening configuration within standard wall and panel envelopes, aiding accurate enclosure layouts and serviceability.
TWB4036 is specified for Ordinary/Non-Hazardous Locations. It carries UL component certifications for use in US and Canada, including firestop-related listings. These certifications help satisfy regulatory requirements and support cross-market deployment in non-hazardous environments.
Useful resources include installation sheets IF 840B and IF 904 for TW sealing blocks, along with Eaton’s specification sheet TWB4036. Additional catalog pages and technical data are available from Eaton to guide proper selection, mounting, and testing of the through-wall barrier assembly.
The TWB4036 uses elastomeric material suitable for sealing multiple penetrations in through-wall barriers. It is typically applied in non-hazardous environments to seal cables and conduits within a four-frame, three-opening configuration, delivering reliable performance in standard control panel installations.