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Brennenstuhl extension lead surge protection explained

Updated: 22 October 2026

A title that says 13,500 A is not a cable rating. Brennenstuhl extension lead surge protection, in this amazon.co.uk capture, is a claim on two listings, and the continuous rating stays at 13 A. The table is the [Brennenstuhl extension lead comparison](/hub/sockets-and-extension-leads/brennenstuhl-extension-lead). Plug and amp checks are on the [buying guide](/hub/sockets-and-extension-leads/brennenstuhl-extension-lead/sub/brennenstuhl-extension-lead-buying-guide). Peter F. checked these listings on 22 October 2026. This is not a lab test. A qualifying purchase can earn us a commission at no extra cost to you.

A title that says 13,500 A is not a cable rating. Brennenstuhl extension lead surge protection, in this amazon.co.uk capture, is a claim on two listings, and the continuous rating stays at 13 A.

Our top picks

Brennenstuhl Brennenstuhl Premium-Alu-Line 8-way

Best overall

Brennenstuhl Brennenstuhl Premium-Alu-Line 8-way
7.3/10about £34.78
View offer
Brennenstuhl Brennenstuhl Eco-Line 5-way surge (light grey)

Best value

Brennenstuhl Brennenstuhl Eco-Line 5-way surge (light grey)
8.0/10about £11.94
View offer
Brennenstuhl Brennenstuhl 4-way surge lead (white)

Alternative

Brennenstuhl Brennenstuhl 4-way surge lead (white)
6.7/10about £11.98
View offer
On this page
  1. 1.13,500 A is not the load
  2. 2.Only two listings in this capture say surge
  3. 3.A lamp is an indicator
  4. 4.A fuse button is a different device

13,500 A is not the load

Brennenstuhl prints 13,500 A as a maximum leakage current on the surge models. That is the surge claim, not the current a television draws all evening. The same UK pages print a BS plug at 13 A, 3,120 W, H05VV-F 3G1.25, IP20, and no RCCB. The white 4-way, B0C34517BD, prints 13,500 amps in the maximum-current field and does not give a separate 13 A line. The Eco-Line, B003BIFLWU, is clearer: the title carries 13,500 A and the continuous field says 13 A. Use that pair as the pattern.

Only two listings in this capture say surge

The Eco-Line 5-way, B003BIFLWU, is £11.94 with 4.5 from 151 reviews and a 2 m cable. The title is marked GB and claims 13,500 A. A second plug field says Type B, so the photograph has to show a UK plug. It is the best value surge strip here: the lowest price among listings with at least 100 reviews and a stated surge claim. The white 4-way, B0C34517BD, is £11.98 with 4.4 from 19 reviews, keyholes, and the same claim. The Eco-Line is the default unless you want that white bar. The 10-way's UK page says surge protection is not included.
Brennenstuhl Brennenstuhl Premium-Alu-Line 8-way

Testsieger

Brennenstuhl Brennenstuhl Premium-Alu-Line 8-way
7.3/10about £34.78
View offer

A lamp is an indicator

On the white 4-way, UK reviews describe a green lamp for earth and a red lamp for surge status. One buyer says the green lamp was dead on two of three units while the sockets still worked. Return that strip. The brand page says there is no RCCB. Overload rules are on the how to use a Brennenstuhl extension lead page. Do not copy the 4-way's lamp story onto the Eco-Line unless the unit in your hand shows those lamps.

A fuse button is a different device

The Ecolor, Super-Solid, Alu-Line, and 12-way describe a fuse button that trips on overload. Brennenstuhl's page for the Ecolor says surge protection is absent. A verified review of the Alu-Line says it has no surge protection. The housing is aluminium at £34.78. For a PC or television, stay with the Eco-Line or the white 4-way. You still have a 13 A lead with no RCCB. The best Brennenstuhl extension lead page separates that job from the 10-way.

Common questions

What does 13,500 A mean?
It is the surge claim Brennenstuhl prints as a maximum leakage current on the two protected listings. It is not the continuous current of the cable. The continuous class on the brand pages is 13 A and 3,120 W. Loading the strip past that is an overload, whatever the surge number says.
Which captured Brennenstuhl leads claim surge protection?
Two. The Eco-Line 5-way B003BIFLWU at £11.94, 4.5 from 151 reviews, and the white 4-way B0C34517BD at £11.98, 4.4 from 19 reviews. Both are 2 m leads with a 13,500 A line. The other eight listings in this capture do not claim it in the bullets.
Does the Alu-Line have it?
The bullets do not claim surge protection. A verified UK review says the Premium-Alu-Line does not have it, and that an Amazon answer saying otherwise was wrong. It has a fuse button, an aluminium housing, and a 13 A line. Those are different features.
Is a surge strip an RCD?
No. Brennenstuhl's UK pages for the Eco-Line and the white 4-way say there is no RCCB. An RCD is there to cut the supply on an earth fault. A surge claim is about a short high-energy spike. You can need both in a house, and this strip only offers the surge line, on two models.
What does a dark green light mean?
On the white 4-way, reviewers describe the green lamp as the earth indicator and the red lamp as surge status. One buyer received two units out of three with the green lamp dead while the sockets still worked. Treat a dead earth lamp as a fault and return the strip. Do not keep using it because the sockets are live.
Does the fuse button do the same job?
No. The fuse button, on the Ecolor, Super-Solid, Alu-Line, and 12-way, is described as a reset after an overload. It is not a 13,500 A surge claim, and those listings do not say they include both. The Ecolor's UK page says surge protection is absent.
Will surge protection stop an overload?
No. A kettle and a heater can still overheat a 13 A lead that has a surge claim. The 13,500 A figure does not add capacity. If plugs run hot, if the fuse blows, or if the plastic smells, unplug and reduce the load. The how-to page has the danger signs.

Related pages

Mount a Brennenstuhl strip under a desk

Brennenstuhl extension lead

Best Brennenstuhl extension lead: sockets, surge, metal

Brennenstuhl extension lead buying guide for a UK plug

How to use a Brennenstuhl extension lead without overload

Sources

Public sources are listed below. Prices, stars and review counts come from amazon.co.uk listings. This page did not run a lab test.

  1. Electrical Safety First — Extension leads (retrieved 22.10.2026)
  2. Electrical Safety First — Plugs and fuses (retrieved 22.10.2026)
  3. Plugs and Sockets etc. (Safety) Regulations 1994 (retrieved 22.10.2026)
  4. BEAMA — Extension lead safety checklist (retrieved 22.10.2026)
  5. HSE — INDG236 Maintaining portable electrical equipment (retrieved 22.10.2026)
  6. HSE — PAT FAQ (retrieved 22.10.2026)
  7. Brennenstuhl — Eco-Line 5-way surge (GB) (retrieved 22.10.2026)