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#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Mounting Bracket for 66 Wiring Block, 89B

by Dynacom
SKU: PP7-320/MB
UL Listed RoHS Compliant

66 Block is NOT included.


Dynacom Mounting Bracket, 66 Block

This B Bracket is used for mounting a 66 punchdown block. This bracket fastens and holds the punchdown block firmly against the backboard or wall and allows the technician to terminate and install the 66 block with ease. The most common application for this bracket is in the configuration of phone systems that feature a 66 punchdown block. This bracket is not compatible with the 110 punchdown block design, which is typically used in configuring data (CAT 5 and above) systems.



  • Standard B Bracket Design allows the bracket to support any 66 punchdown block
  • Designed for wall mounting
  • UL 1863 compliant



Height 10" inches
Width 3.3" inches
Depth 1.9" inches
Package Quantity Sold in boxes of 100
Material Flame Retardant Plastic, UL-94V0
Color White

Additional Information

Telco Block Accessories

Telco blocks are utilized to connect phone systems to data networks. There are two popular forms of telco blocks: the 66 block and the 110 block. The 66 block is quite common in modern phone systems, as they simplify connecting multiple phone lines. The 66 block is also referred to as B-blocks, M-blocks, and as split-50 blocks. We also have Cable Distribution Spools, or mushroom posts for managing your cross connect wire. It is designed for mounting onto walls or other surfaces to help support and guide your cross connect wire. Our cable distribution spools are also ideal for Cat3 cable for telephone applications.

To learn more about our Telco Block Accessories please visit our overview page. Our Hinged Covers for 66 Punch Down Wiring Blocks can be combined with a wide array of products such as:

What's in the box?

What's in the box?

  • Qty 1 - Mounting Bracket for a 66 punchdown block