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Protection

Protection

Blakley Electrics Protection equipment incorporates Residual Current Devices and Earth Continuity Monitors to protect people and property from the harmful effects of electricity. Our products are generally used in industrial applications or in locations of exceptionally high risk, such as school laboratories. Assemblies can incorporate our electronic Residual Current Sensors, which are available with fixed or variable sensitivities in the range of 1.25mA to 300A and work in combination with overcurrent MCBs and MCCBs. We also utilise standard 30mA RCDs to protect socket outlets being used in industrial or outdoor applications. Our Earth Continuity Monitors can be used in combination with either type of RCD or they can be used to provide electrical interlocking or to help ensure fault protection when RCD protection cannot be employed.

Protected Sockets, 230V & 400V

Mains Voltage Industrial Socket Outlet Assemblies to BS EN 60309-2, rated from 16A to 125A, single or three-phase. Sockets can incorporate RCD and Monitored Earth protection, with or without MCB protection. Dependent on the overall configuration, assemblies can incorporate mechanical or electrical interlock, to prevent insertion or withdrawal of plugs on load. Standard assemblies are housed in all-insulated enclosures and non-standard assemblies can be housed in mild steel or stainless steel enclosures with a range of paint finishes.

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Safe Supply Units

Safe Supply Units protect 230V sockets in school science laboratories. SSUs provide the highest level of protection against electric shock and incorporate a 1:1 ratio transformer, 1.25mA or 5mA RCD protection and a current limiting resistor which restricts the maximum level of earth leakage to 10mA at all times.

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PEMS Protected Sockets

RCD and Monitored Earth protected sockets providing protection in accordance with MOD Technical Bulletin TB 03/05, to supply Ground Support Equipment in RAF Hangars.

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PEMS Protected Sockets

Variable Laboratory Supply Units

Variable Laboratory Supply Units provide AC and DC (smoothed or unsmoothed) outputs enabling electrical experiments to be carried out at a range of Extra Low Voltages.

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Variable Laboratory Supply Units

Earth Leakage Sensors

Core balance earth leakage sensors with fixed and variable sensitivity to work in conjunction with circuit breakers and contactors to provide RCD protection. Devices are available with a wide range of sensitivities, suitable for current ratings from 1A to over 1000A, single or three phase.

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Earth Continuity Monitors

ECMs are devices that work in combination with contactors or circuit breakers to help ensure portable equipment is always effectively earthed. ECMs are incorporated into our Monitored Earth protection assemblies and they can be purchased by OEMs for incorporation into specialist assemblies.

As standard, ECMs are available to be fed from a 230V or 400V supply and a range of pilot-earth loop trip factors is offered. Non-standard voltages and pilot-earth loop trip factors can be supplied.

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Earth Continuity Monitors

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