Nsb50

Direct Replacement for Wylex NSBS RCBO's An RCBO is a combination of an MCB and RCD This enables both overcurrent protection and earth fault current protection by a single unit.

Wylex are a market leading brand in circuit protection.

• The operating dolly may be locked in either the ON or OFF position without affecting the ability of the trip mechanism to operate. When in the off position, a contact gap of 4 mm is achieved.
• Wylex NSB MCB 50 Amp Single Pole Circuit Breaker Type B 50A NSB50 Series 3.

Established in 1897 as an electrical contractor, later turning its attention to manufacturing electrical accessories at its newly acquired production site in Manchester.

That site continues to design and manufacture Wylex products to this day.

We provide domestic and commercial circuit protection in the UK.

There are so many reasons to choose Wylex. Why choose anything less?

Single Module Arc Fault Detection Devices

Providing additional protection against electrical fires caused by arc faults. You want to keep you and your clients properties safe. So do we.

Our latest innovation, the single module arc fault detection device, combines three in one technology in one clever little product:

A clever little device

It does the job of an MCB and an RCD, and it is able to detect arc faults that other types of technology simply can’t. What’s more, it is the same size as a standard MCB and that means that it can be retrofitted into existing boards to upgrade the levels of protection against electrical fires.

Time to retrofit

This latest product from Wylex can also be retrofitted into existing Wylex consumer units. Saving you time on site and helps you get on with more important jobs.

Learn more on AFDDs

There are so many benefits to using arc fault detection devices.

Discover our dedicated section on AFDDsand how they will help you comply towards the 18th Edition of the Wiring Regulations.

We also discuss the most populat questions on arc fault detection devices on episode 6 of the Electrium podcast:

Yanmar Nsb50r

What's your reason for using Wylex?

Learn more about the reasons why using Wylex is a must for your business and client. There are so many reasons to choose.

The Wylex Range

Check out the latest products from Wylex below...

Check out the rest of the Wylex range below.

Wylex publications are available for download straight to your device. Visit our downloads page to discover our portfolio.

The Mansfield Amendment

In FY1968, NSF's budget grew to $505 million but inflation was such that, in constant dollars, the amount awarded was less than the year before. The next year was no better. Late in 1969, an amendment to the Military Authorization Act, introduced by Senator Mike Mansfield (D-WA), confused and alarmed both the defense and civilian research enterprises. The amendment barred the Defense Department from using its funds 'to carry out any research project or study unless such project or study has a direct and apparent relationship to a specific military function.' The impact on the Foundation was potentially enormous, since Mansfield estimated that certain research projects, which amounted to $311 million, could be dropped or picked up by other agencies, mainly by NSF.

Nsb50

Board member Norman C. Hackerman, chemist and president of Rice University, recalls that the Board debated objecting to 'the intrinsic philosophy' of the Mansfield amendment, but decided instead to simply restate its long-held view that many federal agencies should support basic research, not just one. In the end, the Foundation took over sponsorship of some major materials research laboratories, but did not otherwise expand.

Motor Nsb50

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