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Save £15 (inc VAT) on 587JH BG Type 2 Surge Protection Device When Bought With 3150G BG 19-Module 10-Way Populated Dual RCD Consumer Unit - VIEW DETAILS

British General Type 2 Surge Protection Device 40kA (587JH)

£ 24.99INC VAT

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British General Type 2 Surge Protection Device 40kA (587JH)

Provides protection against transient over-voltages by diverting the surge to earth within 25ns. Protecting all loads/circuits connected to the consumer unit. Suitable for domestic installations.

  • DP
  • DIN Rail Mounted Fitting
  • Type 2
  • Space Saving Design
  • IP20

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View all: British General SPDs

£24.99INC VAT

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British General Type 2 Surge Protection Device 40kA is rated 4.5 out of 5 by 2.
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Rated 5 out of 5 by from Great value Always fit bg boards now because of the low cost ot these. No prob to install. just back up with a 32a mcb fed in 6mm & take a 10mm earth to the spd from the board
Date published: 2020-10-25
Rated 4 out of 5 by from Good piece of kit Decent and cheap SPD, but be aware that B32 or C32 backup MCB is necessary.
Date published: 2020-09-23
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Masterplug EVH132S1SP

Would this SPD be suitable and compatible for use with the Masterplug EVH132S1SP EV charging plug
Asked by: E100

Requirement for MCB and to be fit upstream / downstream of RCD?

I've got a Wylex 10 Way High Integrity board with 2 x 80A type AC 30mA RCD's. To fit this do i need to fit a 32A mcb in conjuction with 6mm2 connections and also fit it upstream of the RCD so that if its operated, it doesn't trip that half of the board?
Asked by: PaulDumigan
Hi PaulDumigan, When installing an SPD the requirement for a leading MCB is dependant on the (generating authority) incoming supply fuse rating, where any rating above 63A requires the breaker. Once this determination is made, the SPD should be as close to the incomer as possible so that it will redirect any excess voltage down to Earth before it reaches any of the actual circuit devices.
Answered by: Nexus Technical Team
Date published: 2021-02-09

Can this be used in a tt system

Asked by: JBsparks
Hi JBsparks, Yes, a TT Earthing arrangement will not materially affect the operation of this SPD.
Answered by: Nexus Technical Team
Date published: 2021-02-09

Position of SPD within a BG consumer unit

This might be a repeat question but can you clarify for us that this SPD can be installed directly on the output side of the main isolator without the need to run through a MCB first.
Asked by: mandc
Hi Mandc, The requirement of an MCB is dependant on the incoming supply fuse rating at the property where it is being installed, such that a supply fuse rated above 63A will mean that an MCB is necessary (so a supply fuse _not_ rated higher than 63A will mean the MCB will not be needed).
Answered by: Nexus Technical Team
Date published: 2021-01-27

Cable size

What size do these cables need to be? On the output side of the main switch
Asked by: Andyelectrician
Hi Andyelectrician, The Live and Neutral terminals on this SPD will accept cable sizes between 1.5 mm² and 6 mm².
Answered by: Nexus Technical Team
Date published: 2021-01-14
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Specification
Brand British General
CSU Device SPDs
Incomer Fitting Type DIN Rail Mounted
Manufacturer Guarantee 1 Year Guarantee
Max. Continuous Voltage (Uc) 275 V
Max. Discharge Current (Imax) 40 kA
Model Name Fortress
Model No CUSPDT21-02
No. of Phases Single-Phase
Nominal Discharge Current (In) 20 kA
Number of Poles Double Pole
Pack Size 1
Pieces in Pack/Case 1
Product Type Surge Protection Device
SPD Type Type 2
Suitable Cable Size 1.5mm² - 6 mm²