Ear Mounting Bracket for Distribution Box

Ear mounting brackets, or rack ears, allow distribution boxes, UPS systems, and network equipment to be securely mounted in standard 19-inch racks.

Overview

Ear mounting brackets, commonly called rack ears, are metal brackets attached to the sides of equipment to enable secure installation in a rack or cabinet. They are essential for 2U, 1U, or other rack-mountable devices, providing stability and support, especially for heavy equipment like UPS systems or network switches . Some brackets are universal and adjustable, while others are designed for specific brands or models such as Cisco, NETGEAR, Dell, or Eaton .

Types of Rack Ears

• Universal Rack Ears: Compatible with most 19-inch racks and various devices. They often include multiple screw holes for flexibility .
• Heavy-Duty L-Bracket Ears: Designed for front-mounting heavy equipment, supporting up to 65 pounds without rear support .
• 2U or 1U Specific Ears: Sized for standard rack units, often sold in pairs with screws included .
• Brand-Specific Kits: Some kits are tailored for specific devices, such as Cisco SG300/SG350 series, ensuring perfect fit and alignment .

Key Specifications

When selecting ear mounting brackets, consider:

• Rack Unit Size (U): Ensure the bracket matches the height of your equipment (1U, 2U, etc.), .
• Weight Capacity: Heavy-duty brackets can support UPS or servers up to 65 pounds .
• Mounting Style: Front-only mounting vs. full 4-post support. Some brackets allow installation using only the front rails .
• Material and Finish: Steel or aluminum with powder coating for durability.
• Hole Pattern: Standardized patterns (e.g., 78mm x 35mm) for compatibility with rack screws .

Where to Buy

• AliExpress: Offers a wide range of universal and adjustable rack ears with free shipping options .
• eBay: Provides both universal and brand-specific rack ears, including heavy-duty 2U brackets .
• Amazon: Features universal rack mount kits compatible with multiple brands .
• Eaton/Tripp Lite: Heavy-duty front-mounting ear kits for UPS systems and other 2U devices .

Installation Tips

1. Align the bracket with the rack's vertical rails.
2. Use the included screws to secure the ears to the equipment.
3. For heavy devices, ensure the rack can support the weight and consider front-only or full 4-post mounting as needed.
4. Verify that the hole pattern matches your rack and equipment before purchase. Using the correct ear mounting bracket ensures secure, stable, and professional installation of distribution boxes and rack-mounted equipment.