Eaton TP158 Switch Box - 12.5 cu in Capacity
Part Number: TP158
Quick Summary
The TP158 switch box from Eaton provides a durable enclosure for electrical connections in industrial control panels. Installers often struggle with fitting reliable steel enclosures in crowded panels while meeting space, knockout, and mounting requirements. This model supports NEC/CEC compliance and UL-certified steel construction for ordinary/non-hazardous locations, helping with audits and installation. By combining gangable steel design with NM clamp fittings, it reduces wiring errors and accelerates panel assembly, translating to lower downtime and cost. In short, TP158 delivers robust protection, space efficiency, and regulatory alignment for streamlined control-system builds.
Product Information
Extended Description
TP158 Eaton: Eaton Crouse-Hinds series Switch Box, (1) 1/2", NM clamps, 2-1/2", Steel, Ears, Gangable, 12.5 cubic inch capacity
Product Name
Eaton Crouse-Hinds series switch box
Catalog Number
TP158
UPC
786189101584
Product Length/Depth
3 in
Product Height
2.5 in
Product Width
2 in
Product Weight
0.58 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Depth
2-1/2"
Type
Gangable
Capacity
12.5 cubic in
Conduit/cable
NM clamps
Bottom Knockouts
(1) 1/2 in
Material
Steel
Special features
Ears
Crouse-Hinds series Steel Switch Boxes catalog page
Steel Switch Boxes UL certification
Steel Switch Boxes UL certification
Eaton Specification Sheet - TP158
Eaton Specification Sheet - TP158
Feature: 12.5 cubic inch capacity with (1) 1/2 in bottom knockout and NM clamps. Business Impact: Maximizes wiring density while maintaining code-compliant clearances, reducing the need for additional enclosures. Application: Ideal for compact control panels in industrial environments where space is at a premium. Feature: Steel construction with ears and a gangable design. Business Impact: Enhances modularity, enabling scalable multi-box configurations without sacrificing enclosure integrity. Application: Used in gangable installations for distributed control or power distribution. Feature: Precise dimensions—Depth 2-1/2 inches, Height 2.5 inches, Width 2 inches, Weight 0.58 lb. Business Impact: Small footprint supports tight-panel layouts and lightweight handling during field installation. Application: Suitable for tight spaces in machine controls and panel assemblies. Feature: Area classification Ordinary/Non-Hazardous Locations and NEC/CEC compliance. Business Impact: Simplifies regulatory approvals and minimizes risk in non-hazardous environments. Application: Approved for standard industrial locations, reducing design complexity. Feature: NM clamps and bottom knockouts for cable entry. Business Impact: Streamlines wiring and prevents misrouting, cutting installation time. Application: Serves as a reliable enclosure for NM cable in control panels. Feature: UL certification references and Crouse-Hinds line reliability. Business Impact: Provides proven performance and audit-ready documentation, lowering lifecycle risk. Application: Suitable for customers requiring certified steel switch boxes in regulated facilities.
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FAQs
TP158 offers a compact 2-1/2 in depth, 2 in width, and 2.5 in height with a bottom knockout of 1/2 in and NM clamps. These features accommodate denser wiring while preserving code-compliant clearances. The gangable, steel enclosure supports modular panel layouts, reducing the need for multiple separate boxes and speeding installation.
TP158 is designed to meet NEC/CEC standards and is classified for Ordinary/Non-Hazardous Locations. This alignment simplifies compliance reviews and audits in standard industrial environments, while UL certification references in the documentation reinforce dependable performance in everyday panel applications.
TP158 includes NM clamps and a single bottom knock-out (1/2 inch) for streamlined cable entry. Its 12.5 cubic inch capacity accommodates typical control wiring, while the steel construction provides robust protection. This setup minimizes wiring congestion and improves overall panel reliability.
Yes. TP158 is designed as a gangable switch box with ears, enabling seamless combination with additional boxes to form larger, modular assemblies. This compatibility supports scalable control architectures, reduces footprint for multi-box installations, and simplifies field expansion without sacrificing enclosure integrity.
Using TP158 can lower total cost of ownership through reduced enclosure count, quicker installations, and validated NEC/CEC compliance. The durable steel construction and UL-certified documentation help minimize maintenance in ordinary locations, while gangable design reduces future expansion costs and downtime in mission-critical control panels.