Eaton TP320 octagon outlet box - NEC/CEC
Part Number: TP320
Quick Summary
The Eaton TP320 octagon outlet box provides durable wiring access for industrial control panels in non-hazardous environments. A common pain point is balancing size, accessibility, and reliability when wiring in cramped enclosures. It is designed to meet NEC/CEC standards and UL listings, with Ordinary/Non-Hazardous location classification to ensure safe installation in typical industrial spaces. The fixture-rated steel construction and compatible NM clamps streamline field wiring, while its 4" box size and 21.5 cubic inch capacity support practical layouts in control cabinets. This combination delivers improved installation efficiency, reduced rework, and long-term enclosure reliability for engineers and procurement teams.
Product Information
Extended Description
TP320 Eaton: Eaton Crouse-Hinds series Octagon Outlet Box, (1) 1/2", 4", S, set 1/2", 4, NM clamps, 2-1/8", Steel, (1) 1/2", Fixture rated, 21.5 cubic inch capacity
Product Name
Eaton Crouse-Hinds series octagon outlet box
Catalog Number
TP320
UPC
786189103205
Product Length/Depth
4 in
Product Height
2.13 in
Product Width
4 in
Product Weight
0.81 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Depth
2-1/8"
Capacity
21.5 cubic in
Conduit/cable
NM clamps
Bracket style
S, Set 1/2"
Cable knockouts
4
Side knockouts
(1) 1/2 in
Bottom Knockouts
(1) 1/2 in
Material
Steel
Special features
Fixture rated
Crouse-Hinds series Steel Octagon Boxes, Covers, Adjustable Bar Hangers and Ceiling Pans catalog page
Steel Octagon Boxes, Covers, Adjustable Bar Hangers and Ceiling Pans UL certification
Steel Octagon Boxes, Covers, Adjustable Bar Hangers and Ceiling Pans UL certification
Eaton Specification Sheet - TP320
Eaton Specification Sheet - TP320
Feature: Steel construction with fixture-rated design provides durable, code-compliant protection for wiring and connections. Business impact: Reduces maintenance costs and replacement cycles while lowering inspection risk. Application: Ideal for control panels and machine enclosures in manufacturing facilities. Feature: 4 in box size with 21.5 cubic inch capacity enables easier cable management and space for splices. Business impact: Improves wiring density without exceeding capacity, cutting field rework and project timelines. Application: Panel junctions and equipment cabinets in industrial environments. Feature: NM clamps and four conduit knockouts plus side and bottom 1/2 in knockouts support flexible wiring options. Business impact: Speeds up installation, reduces need for adapters, and supports standard conduit runs. Application: Wiring up motors, sensors, and control circuits in compact enclosures. Feature: S, Set 1/2" bracket style and compatible accessories streamline mounting. Business impact: Simplifies retrofits and updates, lowering labor costs. Application: Retrofit projects and new builds with Eaton Crouse-Hinds compatibility. Feature: NEC/CEC compliance and UL listings ensure regulatory adherence. Business impact: Minimizes compliance risk, improves inspection readiness, and accelerates project sign-off. Application: Industrial facilities requiring code-confirmed enclosures in ordinary locations.
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FAQs
Yes. The TP320 is a 4" steel octagon outlet box designed for ordinary/non-hazardous locations, with NM clamps and fixture-rated construction. It supports standard conduit and knockouts and is compatible with Eaton Crouse-Hinds steel boxes and accessories to simplify wiring in control panels and industrial enclosures.
Key specs include a 4 in box size, 2-1/8" depth, and 21.5 cubic inches of interior capacity. It uses NM clamps, features four conduit knockouts, and provides side and bottom knockouts at 1/2 inch for flexible wiring layouts.
TP320 is rated for ordinary/non-hazardous locations per its area classification. For hazardous environments, consider Eaton’s explosion-proof or dust-ignition-rated options. The fixture-rated steel construction makes it robust for indoor panels, machine enclosures, and equipment cabinets in manufacturing facilities.
TP320 complies with NEC/CEC standards and is UL-listed for metal octagon boxes. The referenced UL certification pages cover both US and Canada, ensuring reliable regulatory compliance for electrical installations in industrial facilities.
The steel construction and fixture-rated capability reduce maintenance and rework. Its 21.5 cu in capacity minimizes box splices, while NM clamps and standard knockouts streamline wiring, lowering installation time and overall project costs in control panels and enclosures.