If your installation still uses legacy 2BA terminals, you don’t need to rip them out to meet current touch-protection requirements. Magshields fit directly over the existing 2BA terminals, providing a simple, non-intrusive barrier against live parts in around 16 seconds per terminal, with no special tools beyond a standard 2BA nut runner.

Retrofit Touch Protection Without Replacing Your Terminals

Many existing signalling installations use 2BA terminals that predate current touch-protection standards. Historically, the only compliant fix was replacing the entire terminal block with a different terminal type that offers built-in touch protection, which can be an expensive, time-consuming job that can mean possession time, rewiring, and re-testing.

Magshields solve this differently.

Rather than replacing the terminals, the cover is installed directly onto the existing 2BA terminal, instantly upgrading it to a touch-protected barrier. This makes Magshields the practical choice for asset owners and maintainers looking to bring legacy 2BA installations up to current safety standards quickly, cost-effectively, and without disturbing existing wiring.

2BA Terminal Block Cover Key Features

• Retrofits directly onto existing 2BA terminals — no need to replace terminal blocks
• Quick and easy installation — average install time of 16 seconds per terminal
• Simple, safe, non-intrusive touch-protection barrier
• No special tools required — fits with a standard 2BA nut runner
• 4mm test point holes for safe measurement and testing with covers fitted
• Fully compatible with terminals requiring red dome nuts
• Available in 1, 2, 4, and 6-way configurations

2BA & Fuse Cover Range

Frequently Asked Questions

What is a 2BA terminal block cover?

A 2BA terminal block cover (Magshield) is a protective cover that fits over an existing 2BA terminal to provide a barrier against accidental contact with live parts, without requiring the terminal itself to be replaced.

Who Uses 2BA Terminal Block Covers?

Magshields are specified by Network Rail and used by signalling contractors, maintainers, and IRSE-qualified engineers across the UK rail network wherever legacy 2BA terminals remain in service. They’re commonly used in location cases, relay rooms, and trackside equipment where retrofitting touch protection is required without a full terminal upgrade.

Do I need to replace my 2BA terminals to get touch protection?

No. Magshields are designed specifically so that existing 2BA terminals can be retrofitted with touch protection, avoiding the cost and disruption of replacing the terminal block.

Are Magshields Network Rail approved?

Yes. RSP is the only Network Rail approved manufacturer of 2BA terminal block covers, certified to NR/L2/SIG/11201 – Mod B3.

Can I test terminals with the cover fitted?

Yes. Every Magshield includes 4mm test point holes, allowing safe measurement and testing without removing the cover.

What sizes are available?

Magshields are available in 1-way, 2-way, 4-way, and 6-way configurations to suit different terminal block layouts.

Looking for a cost-effective way to add touch protection to your existing 2BA terminals?

Contact RSP today, or request a quote for your project.

View the video of the 2BA Terminal Block Covers at the bottom of the page.