---
product_id: 118674154
title: "BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)"
brand: "1stec"
price: "$33.50"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/118674154-bt77a-2-or-3-pair-telephone-cable-internal-use-idc
store_origin: US
region: United States of America
---

# Compact dimensions 4/6 wire connector IDC punch down tool BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)

**Brand:** 1stec
**Price:** $33.50
**Availability:** ✅ In Stock

## Summary

> 🔧 Repair with Style: Elevate Your Connectivity Game!

## Quick Answers

- **What is this?** BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White) by 1stec
- **How much does it cost?** $33.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/118674154-bt77a-2-or-3-pair-telephone-cable-internal-use-idc)

## Best For

- 1stec enthusiasts

## Why This Product

- Trusted 1stec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Repairs:** Easily fix damaged cables without stripping wires.
- • **Lightweight Design:** Compact and easy to handle at just 30g.
- • **Color Customization:** Switch from black to sleek white for a polished look.
- • **Robust Connectivity:** Designed for reliable connections with 2 or 3 pair cables.
- • **User-Friendly Installation:** Mirror installation simplifies the process for everyone.

## Overview

The 1STecBT77A IDC Junction Box is an essential tool for repairing or joining BT, Sky, or Virgin Media telephone cables. Designed for internal use, it features insulation displacement connectors for 2 or 3 pair CW1308 phone or broadband data cables, allowing for quick and efficient repairs without the need for wire stripping. Its compact design and user-friendly installation make it a must-have for any professional looking to maintain seamless connectivity.

## Description

BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)

## Features

- BT 77A IDC JUNCTION BOX - Used internally to repair damaged BT, Sky or Virgin Media Telephone cables that have been accidentally cut through or simply to change the colour from black external cable to White
- 4 OR 6 WIRE CONNECTOR - These Insulation Displacement Connectors or IDC joiners are designed for 2 or 3 pair CW1308 Phone or Broadband DATA cables containing 4 or 6 internal copper conductors
- INSULATION DISPLACEMENT - There is no need to strip the internal conductors as a connection is made automatically when the internal wires are pressed into their seated position using the IDC tool supplied
- SIMPLE MIRROR INSTALLATION - These junction boxes can be used to join two similar cables by Simply mirroring the colours or by matching the cable numbering as supplied by the BT NTE5a master socket
- USE IDC PUNCH DOWN TOOL - Lay each conductor over the IDC Block and press into position with the tool in its correct position making sure that the cable is pressed to the lower part of the IDC block cutters

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 1STec Telephone |
| Part number | BT77A |
| Item Weight | 30 g |
| Product Dimensions | 0.25 x 0.25 x 0.25 cm; 30 g |
| Item model number | BT77A |
| Size | BT77A |
| Colour | Internal |
| Style | Industrial |
| Finish | Unfinished |
| Material | Plastic |
| Installation method | IDC Punch Down |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Plastic
- **Brand:** 1STec
- **Colour:** Internal
- **Style:** Industrial
- **Finish type:** Unfinished

## Images

![BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White) - Image 1](https://m.media-amazon.com/images/I/611eExOjHBL.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

## Questions & Answers

**Q: What are the dimensions of the box itself?**
A: Roughly about 3" high, 2" wide and 1" deep, it is only ment for 1 conection ..in and out, although it could be used to extend a lead, it is used as a spur from a distribution from the main box ..ie a bigger box with 4 to 6 points terminals (like a spiders web) although I have looped 2 inline adding 2 extra phones with no problem I have 5 phones in my system, also there is a limit to the lenth of the line where the power will drop off, hence the bigger terminal box where you can set  it in a central position alowing shorter leads to each phone (all ring at the same time so you are near a phone) hope this was of help.Mike.g

**Q: Can this join 3 or 4 cables by pushing 2wires into each seated position?**
A: It is possible, depending on what you wish to do, it is only a "spur"box ie a lead in feeds it and a out lead goes to the phone socket. if you wish to have a "central hub" a bigger box is required to create a "spiders web" ie; to several phone points throu-out the house, what I have done is to loop one phone socker to another the kits provide enough cable to do this, as I said this device is ment to "ADD" an extra phone, if going ahead read the instructions and the colour codeing make sure the right colour lead is the same in each box  ie; 1 to  6

## Frequently Bought Together

- 1STec BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)
- 1STec 10m of Genuine BT CW1308 4 Core 2 Twisted Pair Telephone or FTTC Broadband Extension Wire + 2 Grommets + IDC Insertion Tool + 3.5mm Clips + Printed Colour Code Instructions (10 Metre, White)
- DAVOX BT Openreach NTE5C MK2 Master Telephone socket + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*