3 Inch Round Pole Tenon Adapter | 2 3/8 Inch Tenon | Bronze

Product Overview

This 3 Inch Round Pole Tenon Adapter is designed to mount area and post top lighting fixtures to standard 3 inch round poles. The adapter provides a 2 3/8 inch tenon, which is a common interface for slipfitter and post top luminaires. The bronze finish matches most commercial and municipal pole installations. Typical use includes adapting round steel or aluminum poles for area lighting upgrades or fixture replacements.

In real-world projects, this adapter is used when a pole does not have a factory-installed tenon or when retrofitting existing poles to accept new fixtures. The adapter is secured to the pole top and provides a stable mounting point for fixtures requiring a 2 3/8 inch tenon.

Core Performance and Output

This adapter is engineered to provide a secure mechanical interface between a 3 inch round pole and fixtures with a 2 3/8 inch slipfitter or post top mount. The structural performance is suitable for standard area and post top fixtures within typical weight and EPA limits for 3 inch poles. The adapter does not alter the wind load rating of the pole but must be considered in total EPA calculations for the assembly.

It is not intended for use with oversized or high-EPA fixtures that exceed the pole?s rated capacity. Excessive fixture weight or wind load may compromise pole stability, especially at higher mounting heights.

Adjustability and Control Options

This tenon adapter provides a fixed 2 3/8 inch round tenon for mounting. It does not include tilt, rotation, or aiming adjustments. Fixture adjustability is determined by the slipfitter or mounting hardware of the attached luminaire.

No integrated electrical or control features are present. All wiring and controls are managed through the pole and fixture assembly.

Longevity and Reliability

The adapter is constructed from durable materials with a corrosion-resistant bronze finish. It is designed for outdoor use and resists typical environmental exposure found in area and site lighting applications. The one-year warranty covers material and manufacturing defects under normal use.

Routine inspection of mounting hardware and finish is recommended as part of standard pole and fixture maintenance. The adapter?s service life is dependent on environmental conditions and mechanical loading.

Build Quality and Physical Characteristics

This adapter is fabricated for a precise fit on 3 inch round poles. The 2 3/8 inch tenon is compatible with most commercial slipfitter and post top fixtures. The bronze finish provides a uniform appearance with common pole colors and resists fading and corrosion.

All mounting hardware should be checked for compatibility with the pole wall thickness and fixture weight. The adapter is not intended for use on square poles or non-standard pole diameters.

Where This Product Fits Best

This tenon adapter is used in exterior environments where round poles require adaptation for area or post top lighting. It is suitable for commercial, municipal, and site lighting projects where fixture upgrades or replacements are needed.

• parking lot lighting
• area lighting
• roadway lighting
• commercial site lighting
• campus lighting
• industrial yard lighting

The adapter is intended for outdoor use and is compatible with standard 3 inch round steel or aluminum poles. It is not rated for marine or corrosive environments without additional protective measures.

Installation and Long-Term Use

Installation requires securing the adapter to the top of a 3 inch round pole using appropriate hardware. The tenon provides a standard interface for slipfitter or post top fixtures. All mounting bolts should be torqued to manufacturer specifications to ensure stability.

Long-term use depends on proper installation, routine inspection, and adherence to pole and fixture weight/EPA limits. The adapter should be checked periodically for corrosion, mechanical wear, and secure attachment.

How This Fixture Is Commonly Used

In practice, this adapter is used to retrofit existing round poles for new area or post top fixtures, or to replace damaged or missing tenons. Mounting heights typically range from 12 to 30 feet, depending on the pole and fixture type. Spacing and layout are determined by the lighting design and fixture output.

When higher output fixtures are used, fewer poles may be required, but wind load and pole capacity must be verified. Overloading the pole or adapter can lead to structural issues.

Safety, Certifications, and Warranty

This tenon adapter is designed for use in outdoor lighting assemblies and meets standard mechanical and finish requirements for commercial site lighting hardware. No electrical or safety certifications apply to this mechanical accessory.

The product includes a one-year warranty covering defects in materials and workmanship under normal use. All installations must comply with local codes and pole manufacturer guidelines.

Frequently Asked Questions

Q: What fixture types are compatible with this tenon adapter?

A: Fixtures with a 2 3/8 inch slipfitter or post top mount are compatible. This includes most area, roadway, and post top luminaires designed for standard tenon mounting.

Q: Can this adapter be used on square poles?

A: No, this adapter is designed specifically for 3 inch round poles and will not fit square or non-standard pole shapes.

Q: What is the maximum fixture weight this adapter can support?

A: The adapter itself supports typical area and post top fixtures, but total weight and EPA must not exceed the pole?s rated capacity. Always verify pole and fixture compatibility before installation.

Q: Is the bronze finish suitable for coastal or marine environments?

A: The bronze finish is designed for standard outdoor use. For marine or highly corrosive environments, additional protective measures may be required.

Q: How should fixture spacing be planned when using this adapter?

A: Fixture spacing depends on the lighting design, mounting height, and fixture output. The adapter does not affect photometric layout but enables mounting flexibility on existing poles.

Application Questions and Clarification

Q: Is this adapter suitable for use with high mast or sports lighting fixtures?

A: No, this adapter is intended for standard area and post top fixtures on 3 inch round poles. High mast and sports lighting typically require larger poles and mounting hardware.

Q: Can this tenon adapter be used for new pole installations or only retrofits?

A: It can be used for both new installations and retrofits where a 3 inch round pole requires a 2 3/8 inch tenon for fixture mounting.

Q: Does the adapter include mounting hardware?

A: Mounting hardware is not included. Hardware selection depends on the pole material and wall thickness.

Q: Will this adapter affect the wind load rating of the pole?

A: The adapter itself has minimal impact, but total EPA and fixture weight must be considered in the overall pole assembly calculation.