66 Wiring Block - 50 Pair - 66M1-50

Part no. IC066NB050

Exceeds Cat5e Rating | Flame Retardant | UTP Cable | Accepts Bridging Clips | Wall Mountable

(4 reviews)
Quantity Discount Pricing
1-2 3-9 10-24 25-49 50+
$12.09 $11.49 $10.92 $10.39 $9.79
Quantity Discount Pricing
1 - 2 3 - 9 10 - 24 25 - 49 50+
$12.09 $11.49 $10.92 $10.39 $9.79

Punch Down Block - 66 Wiring Block - 50 Pair - 66M1-50

A 66 block is a punchdown block containing rows of four IDC style clips. It is used for terminating 22-26 AWG solid copper cross-connect station wiring for many types of phone systems. Bridge clips are required to complete the circuit between the left and right side of the 66 block.


  • Exceeds Cat5e rating
  • Flame retardant
  • Suitable for UTP cable
  • Accepts bridging clips
  • Wall mountable or can be used with an 89B bracket (Not Included)
Features & Specs
Wiring Block
The type of wiring block? 66
The number of conductors? 50 Pairs
How to terminate? Punchdown
The length of the product? 10.00 Inches
Width The width of the product? 2.50 Inches
Height The height of the product? .96 Inches
What the product is made of? Plastic, Brass IDC
REVIEW SUMMARY for 66 Wiring Block - 50 Pair - 66M1-50
5.0 (based on 4 reviews)
  • Good Quality Block

    Reviewed by:

    From: Owensville, MO

    3/29/2016    #21554

    PROS: The product works really well; Super fast
    CONS: None specified
    This block worked out great for a simple junction between two sets of cables. The clear cover is nice to be able to see through and double check the wire connections at a glance.
  • 66 Wiring block

    Reviewed by:

    From: Atlanta, GA

    7/21/2015    #17414

    PROS: The product gets the job done; Faster than I expected
    CONS: None specified
    Product worked as advertised. Easy installation with no modifications. Product was received on time. Will definitely consider Show Me Cables for future purchases.
  • Quality at a low price

    Reviewed by:

    From: Alamogordo,NM

    1/16/2013    #838

    PROS: None specified
    CONS: None specified
    I use these punch blocks in radio studios to run multipair cable trunks to a central patchpoint (wiring closet or hallway) where trunks form multiple studios can send or receive links to transmitters or from satellite receivers using the split block aspect with bridge clips to allow for quick interupt of lines for troubleshooting or temeporary cross patching.
  • perfect

    Reviewed by:

    From: Tx

    12/29/2012    #785

    PROS: None specified
    CONS: None specified
    perfect purchase and perfect service

Q: What is the difference between a 66 and 110 block?

A: While both are punchdown blocks can run telecommunications wiring, 110 blocks are the newer version and are able to run telecom and data communications reliably. 110 blocks enable the twist of the cable to be maintained up to the termination point.

Q: What does pre-wired mean?

A: Pre-wired 66 blocks are internally wired and allow you to only have to punch down the incoming service. A telco cable or line cord is then plugged in for the premise wiring. This saves time during installation.

Q: What type of wire should be used?

A: The wire type used should be 22-26 AWG solid copper wiring.

Q: What kind of tool is used to punch down the wire?

A: An impact punch-down tool is highly recommended. This will punch the wire down and cut it in one motion, saving time and gives a much cleaner install.

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