Eaton TP138 Switch Box - 10.5 cu in Capacity (NEC/CEC)
Part Number: TP138
Quick Summary
The Eaton TP138 switch box provides a rugged steel enclosure for control panels and electrical installations. Installers often face tight spaces, wiring access, and harsh environments; the TP138 offers gangable mounting and beveled corners. It is NEC/CEC compliant and UL-listed for US and Canada, with Ordinary/Non-Hazardous Location classification supporting broad industrial use. With 10.5 cubic inches of capacity, 1/2 in bottom knockout, two cable knockouts, and clamps through beveled corners, it streamlines conduit management. This combination reduces install time, minimizes inventory needs, and supports scalable configurations in control panels and electrical protection applications. Industry teams also appreciate ease of integration with the Crouse-Hinds family for standardized maintenance.
Product Information
Extended Description
TP138 Eaton: Eaton Crouse-Hinds series Switch Box, (1) 1/2", 2, Clamps through beveled corners, 2-1/4", Steel, Ears, Gangable, 10.5 cubic inch capacity
Product Name
Eaton Crouse-Hinds series switch box
Catalog Number
TP138
UPC
786189101386
Product Length/Depth
2 in
Product Height
3 in
Product Width
2.25 in
Product Weight
0.55 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Depth
2-1/4"
Type
Gangable
Capacity
10.5 cubic in
Conduit/cable
Clamps through beveled corners
Bottom Knockouts
(1) 1/2 in
Cable knockouts
2
Material
Steel
Special features
Ears
Crouse-Hinds series Steel Switch Boxes catalog page
Steel Switch Boxes UL certification
Steel Switch Boxes UL certification
Steel Outlet Boxes for Electrical Systems
Steel Outlet Boxes for Electrical Systems
Feature: Rugged steel construction with ears for mounting and clamps through beveled corners. Business Impact: Enhanced durability and secure mounting reduce maintenance cycles and replacement costs in demanding environments. Application: Ideal for control panels and industrial electrical protection installations where reliability matters. Feature: 10.5 cubic inches of internal capacity with (1) 1/2 inch bottom knockout and (2) cable knockouts. Business Impact: Accommodates wiring density while maintaining code-compliant clearances, lowering the need for additional enclosures. Application: Suitable for multi conductor runs in compact panel spaces and junctions in harsh facilities. Feature: Gangable design and beveled corners for through-box alignment. Business Impact: Streamlines multi-box configurations, improving installation speed and reducing field adjustments. Application: Scales easily across panel banks in machine centers and process lines. Feature: NEC/CEC compliance and UL certification for US and Canada; Ordinary/Non-Hazardous Location classification. Business Impact: Accelerates approvals, minimizes compliance risk, and supports cross-border projects. Application: Critical for regulated industrial environments and ongoing safety audits. Feature: Compatibility with Eaton Crouse-Hinds switch boxes and quick-conduit management. Business Impact: Reduces inventory diversity and procurement complexity, delivering lifecycle cost savings. Application: Broad applicability in industrial automation and electrical protection systems.
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FAQs
The TP138 includes one bottom knockout sized at 1/2 inch and two additional cable knockouts, designed to support common conduit and cable configurations in standard control panel wiring. This arrangement helps streamline wiring layouts, reduce the need for extra fittings, and maintains a compact enclosure footprint suitable for dense installations.
Yes. The TP138 is certified for Ordinary/Non-Hazardous Locations and adheres to NEC/CEC standards, ensuring safe operation in typical industrial, commercial, and indoor environments. Its steel construction and UL listings further support compliance during inspections and audits.
Absolutely. The TP138 is designed to be gangable, allowing multiple units to be aligned for larger or multi-gang configurations. This enables efficient panel layouts, reduces voids between boxes, and simplifies wiring management in centralized control enclosures.
TP138 carries NEC/CEC compliance and UL certification for steel switch boxes in the US and Canada, with an Ordinary/Non-Hazardous Location classification. These certifications support code compliance, safety approvals, and cross-border project readiness, reducing validation time during audits.
Key ROI drivers include faster installation due to gangable design and beveled corners, reduced need for extra knockouts, and consistent compliance across locations. The enclosure’s compact 10.5 cu in capacity, 1/2 in bottom knockout, and two cable knockouts help minimize parts, shorten wiring times, and lower lifecycle costs in panel builds.