FDB2 multi-way RCBO with DC immune protection

The FDB2 RCBO unit is a multi-way housed earth fault protection system which shares DC immune technology with its smaller sister unit the FDB11. FDB2 offers 2 way, 3 way and 4 way options as standard with approval by Network Rail for use in DC electrified areas where it provides general purpose earth leakage protection, including overload and short circuit protection, for AC equipment without the problems of nuisance tripping associated with DC induced currents.

FDB2 units are modular, enabling expansion of multi-circuit installations with additional internal capacity or by connection of further units, so leading to useful cost and space savings at initial installation and over the lifetime of the project. Their development over 40 years use in this environment has led to their Network Rail approval for use with general service equipment, e.g. in cafes, adjacent offices etc. to protect against induced DC current.

Each surface mounting enclosure contains solid state electronics for stability and immunity from spurious tripping. Externally RCD test buttons and MCB toggles are fully accessible at the front panel of the enclosure.

Voltage 110/230V earth fault protection is offered at 20mA, 30mA or 100mA overload at 10A, 16A, 20A, 25A and 32A ratings.

The FDB2 is available from our online shop at www.fdbonline.co.uk.

round rods from FDB Panel Fittings

Our Online shop has a great range of the most popular rod components for multi-point cabinet locking systems, with round and flat rods in many lengths, together with suitable rod guides, as well as rod eyes and adapters to set up your 2 or 3 point closure correctly. 3 way rod latch from FDBQuarter turn lock and rod systems are also available in stainless steel for those really arduous applications – rod latches too are offered in steel and stainless steel for ex-stock delivery.

As usual our Online shop is supported by our Knowledge Base documentation re multi-point locking and our helpful tech’ sales team available to discuss by phone at 020 8568 1616 or contact online.

Housing with polyurathane seal

We now have available foamed in place polyurathane lock body seals which cannot get lost like “O” rings and so are an excellent solution to sealing from IPx5 to IPx7. These captive seals are readilly re-useable and are UL50 and UL50E recognised. They are suitable for use in -40 deg C to +80 deg C and will even sustain +160 deg C for short periods.

These foamed polyurathane captive seals are available on black or chrome finished zinc die or stainless steel lock bodies for quarter turn lock systems. they are especially suitable for large projects – contact us for details and quotation.

FDB13 - 400V 3 phase DC immune protection from FDB Electrical

Our top end DC immune protection FDB13 unit is approved by Network Rail for use in DC electrified areas for general purpose earth monitoring, RCD/RCBO overload and short circuit protection of 3 phase 400V circuits. This ensures electrical safety protection for ancillary AC equipment without the nuisance tripping associated with induced currents from nearby high level DC installations.

Protection of AC equipment with FDB13 in installations adjacent to DC electrified areas has been proven over 40 years of development. Importantly it incorporates loss of neutral indication and comes with overload and short circuit protection – features which are likely to be of interest to electrical contractors, design engineers and plant engineers working in and around rail industry installations where induced DC current may cause problems in adjacent AC lines.

FDB13 units are offered in 3 ranges – 10 to 32 amp, 40 to 63 amp and 80 to 100 amp, all available from the FDB online store. They conform to BS4293 (RCD); BSEN60898 (MCB) with IΔn: 20mA; 30mA or 100mA, and are mounted in an IP20 steel surface mounting enclosure complete with knockouts for easy installation.

The FDB13 is available from our online shop at – www.fdbonline.co.uk.

Specialist enclosure and cabinet sealing

22 July 2016
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Our Online shop now has a varied selection of sealing gasket profiles from closed cell self adhesive neoprene through edge clip P sections to window gaskets, edge protection sections, bladed sections and push fit insert profiles – also featuring a very useful radius adapter which allows the gasket section to flow round the corner without […]

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Surface mounted 120° door hinge with secured hinge pin

14 July 2016
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Our new 4-124 120° concealed hinge is designed for surface mounted doors on specialist enclosures and cabinets where it enables easy door removal/re-fitting without loss of the securely retained hinge pin. Service, maintenance or repair of equipment may be carried out with peace of mind knowing that the hinge pin is held in place with a […]

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Help for handles at our Online shop

8 July 2016
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With approaching 100 handles in our Online store and many more available direct with a phone call or e-mail we have lots of possibilities for cabinets and enclosures of all types – from specialist electrical housings and electronic racks to office equipment and desk drawers – our range includes IP65 swinghandles, traditional L and T […]

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New vibration isolator for equipment mounting

29 June 2016
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When vibrating machines are mounted they often require the vibration to be damped out for the benefit of personnel or adjacent equipment. Likewise, delicate machines and instruments require to be isolated from external vibration – the Harter F100 damper does this. These F100 series mounting dampers allow the interposition of rubber spring elements configured as […]

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Confused about Hinges? – Buy Online

24 June 2016
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Buy hinges online at the FDB online store and use our hinge calculator to work out what ex-stock hinges you need. With nearly 200 different hinges to choose from for everything from specialist electrical and electronic cabinets to office or domestic cupboard and room doors our FDB Online store is the place for quick supply of standard […]

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FDB 11 expandable modular Network Rail approved electrical protection

10 June 2016
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Our FDB 11 is a modular range of general purpose earth leakage protection units complete with overload and short circuit protection, and approved by Network Rail for use in DC electrified areas. They are configured in a modular arrangement so that multiple units may be installed and added to over time to create a modular grid […]

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