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BG MCB 40A B Type (66432)

40A, Single Pole, Type B curve MCB.

  • Positive Contact Status Indicator
  • Lockable Dolly Switch
  • Large Terminal Capacity
  • 500V Insulated Voltage
  • 6000A Breaking Capacity
  • 6000V Uimp Impulse Withstand
  • 35mm DIN Rail Mounting
  • Type B - Magnetic Operating 3 to 5 Times In (Current Rating)

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£3.54INC VAT

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BG MCB 40A B Type is rated 5.0 out of 5 by 4.
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Rated 5 out of 5 by from DIY MCB replacement Worried by the review of 'Anonymous - Wirral'. The MCB should be rated to protect the cable and accessories which form the circuit. If too high a capacity MCB is installed without verifying that the circuit can handle it there is a real risk of the cable overheating under load and catching fire. At a 40 amp load (9-10kw shower would get you there) you should be looking at 6mm sq T&E minimum and that assumes the cable is installed in free air.. If in a wall or conduit it would have to be 10mm sq minimum. If in doubt ask a qualified electrician to take a look.
Date published: 2016-06-07
Rated 5 out of 5 by from Circuit breaker Shower kept tripping out so bought this to replace the lower rating rating mcb and for the price brilliant no issues.
Date published: 2016-05-21
Rated 5 out of 5 by from Good Quality Good quality at a great price, exact replacement for original mcb. Does the job well with the minimum of fuss
Date published: 2015-08-08
Rated 5 out of 5 by from great buy This is great product at a good price. Would recommend this item any time
Date published: 2015-05-30
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2 Questions  2 Answers

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17 Aug 2016
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runcorn
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, Electrician
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Answer: 
Hi, thank you for your product enquiry.
BG Electrical has not had any GE Series E MCBs or Consumer Units in for testing or comparison so we cannot say with any certainty whether their devices are the same dimensions or have the same terminal configuration as ours, therefore we are unable to guarantee that this device would be a suitable replacement for your current 32A GE model.
18 Aug 2016
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Is the 32A B BG MCB suitable for a 10 way consumer unit bought from Screwfix a few years ago
21 Jul 2016
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reading
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, Other Trade
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Answer: 
Hi, thank you for your product enquiry.
All BG Electrical Consumer Unit Devices have been designed and tested to work together with each other, but have not been tested with other manufacturers' devices or in their enclosures so we cannot say whether this would be suitable or not.
Also, BG Electrical does not warrant other manufacturers' devices fitted into our Consumer Units and this may be the case with other manufacturers so it would be a good idea to check with Wylex before installing a 3rd party device in their enclosure.
22 Jul 2016
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1 of 1
  • 2016-11-18 T05:37:03.535-06:00
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Specification
Amp Rating 40 A
Brand British General
Colour Grey
Manufacturer Guarantee 1 Year Guarantee
Model No CUMB40-XD
Pack Size 1
Pieces in Pack/Case 1
Pieces in Pack/Case 1
Power Voltage Supply 230/400 V
Product Depth 76 mm
Product Height 81 mm
Product Width 18 mm
Total Product Weight 0.1 kg

230/400V AC 50Hz. EN 60898.