The master socket contain a surge arrestor and an R/C circuit filter these are used by your service provider to get a fixed value resistance when they run line checks. Standard BT type socket with screw type terminals. Rounded edge metal design
- Master BT type socket
- Screw terminals
- Rounded edge design with built in gasket
- Certified to BS 5733
- Minimum mounting box depth: 25mm
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.