Mem EATON 100 AMP 30mA DOUBLE POLE RCCB RCD A100HE

Product Information

For the person who asked about Smartmeter, yes one fitted in last year and quite close to CU (2 meters?). Though similar episode of nuisance tripping preceded its installation and went away of its own. What are you thinking about this? Would you be able to reveal the make and model of the RCD that trips, and the make and model of the smart meter?

I have been saying for years that the test levels for immunity for CE marking are not really high enough, and equally the test levels for spurious emissions are really a bit too high, as the two together only work if you assume you are free to move things apart in your own home to achieve co-existance - in a case like this clearly you cannot get victim and source far enough away from each other. Memera 2000 – There are several different styles of MCB's in this range but all will fit any Memera 2000 board. The term general purpose relating to Type AC devices should not be taken out of context i.e. it is the most basic RCD, suitable for detecting a simple full sine wave residual current at 50Hz.There's never going to be a perfect solution but there does need to be a less complex solution than there is. A well-timed subject. Just a few weeks ago I tried to find a new RCD to replace an old BS4293 one. I have seen how a pure type-AC RCDs rated for 30 mA trip can allow multiple amps of half-wave-rectified current without tripping. As this is a TT installation where earth fault protection depends on the RCD, it feels very inappropriate to have anything less than a type-A, given that plenty of loads contain rectifiers. (Admittedly, the old one was presumably only like type-AC, but that's not an excuse.) Requirement for a transient resistance feature < 3 kA and short 10 ms time delay. **Note: Type A transient resistant RCDs only meet EN 61008/9 for general UK 50Hz residual currents. This handy RC Unit (residual current unit) has been designed for installing on to any standard 1P or 1P+N Eaton MCB with a 10kA, 15kA & 6kA rating to create an RCBO. The MR30 RC POD unit is ideal for standard applications with a 230-240 VAC voltage rating and 30 mA breaking capacity and is field fitable. Fully compliant with Standard 61009, this capable MR30 POD is utilised in numerous industrial and commercial applications due to its versatility and ease of assembly. Type F RCDs are not designed to detect smooth dc residual currents. They will still trip within safe limits with < 10 mA smooth dc superimposed on a 50Hz pulsed residual current.

You are right assuming as long as the electical characteristic match it will perform the same function.. It is more a physical size & shape of fitting onto the Din rail inside the fusebox & if the main live bus-bar has a blade or a fork type fixing to the RCD and each MCB. You might ask "Why are Type AC RCDs still referred to in the 18th Edition of BS7671, when most installations should be using Type A devices as a minimum requirement?"

Memshield 2 – These are also a commercial breaker and come in types B,C & D. These also will fit into all Memera 2000 range boards. MEM first started manufacturing circuit breakers in 1965 and were one of the UK's biggest names in circuit protection. Now they go under the trade name of Eaton but still use the MEM name on some products. Memshield 1 – These are a commercial breaker and come in various types (Type 2,3,B,C & D) depending upon the age. Most are M9 rated. I suspect that many folk would not like to see that during an inspection. What have you earthed it to ?

So question one does it pass when tested with a RCD tester? If so what makes you think it is faulty? I am sure the one in my old house was tripping due to surges when a neighbour was welding. Two identical RCD's would hold for 18 months without a problem, then trip for seeming no reason for couple of weeks, then again two years no tripping. In your own words - It is not appropriate electrotechnical language, its generic and anyone following that as a lead will not carry out an appropriate assessment. The initial verification required under 641.1 and 301.1 (ii), covers the requirements for the verification that electrical equipment (any appliance supplied or connected, as part of the existing fixtures and fittings) is compatible with other electrical equipment such as RCDs installed to provide additional protection e.g. for a domestic installation, document the appliance RCD requirements with the justification for the consumer unit specification. The revised RCD guidance in 531.3.3 is precise. The appropriate Type of RCD must be selected, based on the characteristics of the residual current and the equipment that is likely to be connected to the RCD protected circuit".This is explained in Chapter 12, 13 and Chapter 30. The Electrician is responsible, not the Technical committee, to make the decision on which device is appropriate for the installation.

Type F RCDs cannot provide protection in circuits where there is a requirement to detect smooth DC residual currents, or if the motor frequency can be reduced to zero or the inverter switching frequency is >1kHz. If any of the above conditions apply, Type B RCDs must be used. UK electricians can still make informed technical decisions. This is explained in Chapter 12, 13 and Chapter 30. The Electrician is responsible, not the Technical committee, to make the decision on which device is appropriate for the installation. The revised RCD guidance in 531.3.3 is precise. The appropriate Type of RCD must be selected, based on the characteristics of the residual current and the equipment that is likely to be connected to the RCD protected circuit. and the RCD should be selected based on the characteristics of the connected loads. If it is the main switch.. this would involve removing and reconnecting the main incomming supply tails.. Otherwise, I'm not quibbling the need for proper spur to garage, which will separate off two freezers from kitchen, but how do you people feel about this diagnosis? My own insulation tests with mega meter to each unplugged appliance have found no resistance issues, which given he found no wiring issues, leaves no obvious cause except as he thinks maybe too much total freezer earth leakage. Intermittent faults like tripping can send you mad as we all know, is this a good course of action? The MR 30 is one of their most popular products. The Memshield 2 MR30 RCBO Pod is a residual current operated circuit breaker that can be added to any standard 1 pole or 1 pole + N Eaton MCB. It is a Miniature Circuit Breaker with the function of a Residual Current Circuit Breaker and is fully compliant with IEC 61009.

Type F RCD application example:

If you’re not sure about quantities, sizes or have any other questions about your electrical wholesale products, our Electrical2Go sales team will be more than happy to help. Give them a call now on 01424 220384. KEY FEATURES Designing to pass an immunity test at 200V/m from 10kHz to 6GHz (the Def Stan) is far more demanding that one at 3V/m (CE marking for type B, domestic situations) or even 10 V/m (CE marking industrial), there is a reason that all the geen boxes are milled from solid metal and have EMC gaskets everywhere. The method of installation relating to protective earthing will depend on the operational leakage current (protective conductor current) – see 543.7. The use of a 30mA RCD may be required for several reasons; cable installation, location / application area for the pump etc. Take note of 531.3.2 Operational leakage current (protective conductor current) for the circuit should not exceed 30% of the RCD sensitivity. The older RCD does seem to be affected by spikes, so likely a SPD would stop it, but a consumer unit is a type tested distribution unit, and to retain the type testing only items recommended by the manufacturer can be used, even if they seem to fit. Single-phase inverter designs, applied in washing machines and handheld appliances, containing variable speed features, may produce mixed frequency leakage currents. Appliances containing inverters and motors, can be used with Type A RCDs, if: