SUPRA MAINS BLOCK MD02-EU/SP MK3
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Supra LoRad MD-EU/SP
Supra mains distribution block consisting of EU sockets conforming to European Standards, with the exception of UK, Ireland, Belgium and Italy. Input connector is a 10 ampere male chassis connector according to the international standard IEC-320, i.e. the same for most electrical multimedia devices with detachable power cord including ground lead. It provides a 10 ampere fuse and a non-intrusive filtering (NIF) and a 3-way surge protection.
Requires an optional input mains flex, see our section of mains power cord sets.
SUPRA NIF Transient Filter
All models are equipped with Supra NIF (Non-Intrusive Filtering), an efficient high frequency (RFI) transient filter. It is designed and configured to efficiently suppress RFI interference, but not to dampen quick recharge demands from the connected devices power supplies. Supra NIF is developed by Ben Duncan Research in England.
3-Way Surge Protection
The SP-models are all equipped with the Supra Surge Protection which protects all three ways; i.e. Live to Earth, Neutral to Earth and Live to Neutral. The standard surge protection manufacturer think that it is sufficient to offer only Live to Neutral protection, and they do not protect against field surges by proximate lightning strikes. The only better way to protect your equipment compared to Supra SP is to disconnect all mains power, interconnects and communications with adjacent devices completely. Unfortunatly the thunder storms does not follow a schedule, next time you may be at work…
All filtering and all protection need a mains wall socket with a ground terminal to operate. If your multimedia- and hifi equipment is of a certain standard, they will probably require ground connection themselves and use a IEC-320 socket for detachable mains power cords. If your equipment is such and you do not have ground terminal in your mains wall sockets, we recommend you to contact your landlord and/or an electrician to arrange for ground connection. Doing so, will undoubtedly both increase sound quality and the security for your equipment.
Supra LoRad shielded Mains Blocks in aluminium housing
The Supra mains blocks are shielded and radiated low levels of electricity generated fields thanks to their aluminium chassis connected to ground potential. The conductive chassis drains the internal interference down to ground and prevents also adjacent RFI and other malicious fields to enter the distribution block. It has to be connected to a grounded wall socket with a mains cable providing ground lead, in order to work properly. The mains cable connecting the mains block to the wall socket and the mains cables to each device should for maximum interference dampening/immunity also be shielded. We recommend our Supra LoRad Mains Flex as the best alternative to combine with our distribution block. If you are new to the field of mains power shielding and filtering, you will undoubtedly notice the difference.
The field leakage from the standard included mains flex to the vast majority of multimedia devices is clearly detectable with our Supra AC Detector; http://www.jenving.com/products/view/ac-sensor-110-230v-1071100026 Just touch the included mains power cable with the AC Detector white tip and you will hear a warning and see the tip rapidly flicker in red to indicate radiating fields from mains power. Now change to a Supra LoRad mains flex and touch the cable with the tip … This field is contagious and will add a 50 – 60 Hertz superimposed signal to any nearby interconnects. Think about what such a mains flex can do to a sub-woofer interconnect; the sub-woofer will play a constant tone of the mains power frequency superimposed on the music or movie signal. Efficient shields are one of Supra’s most important design features, you’ve earned the right to listen to the music only!
Every now and then we hear about creative alternative ways to arrange an earth connection if the wall socket does not provide one. There is especially one we would like to highlight as particularly hazardous and we hope this statement does not serve as yet another creative way. Occasionally the water heat radiators have been connected to the hi-fi gear cabinets or to a mains distribution block earth contact plate. This works normally from the electrical point of view. Until the following happens; one of the devices become faulty and the cabinet becomes energized with wall socket mains voltage. The water radiator system may not be properly grounded to earth potential. Now, this means that there might not be a large enough fault current through the water pipes to blow the fuse, thus disconnecting the fualty device. Further it means that most of the pipings and radiators are energized with wall socket mains voltage. If this is in an apartment house, every neighbour tenant has potentially lethal voltage in their radiators. It will not show. Until e.g. small children touches the radiator. We strongly discourages from the above or any other way to arrange a ground connection other than according to the local laws and regulations for electrical safety.
Features and benefits
LoRad stands for low radiation of electric and magnetic alternating fields, keeping you and your family free from harmful influence
The screen protects your equipment from radiated mains, RF pick-up and allows you to enjoy your hi-fi set or TV’s full potential
The Surge Protection will give your hifi gear the chance to survive a close by lightning strike
LoRad result in a cleaner sound, better picture and a more healthy home and working invironment with low levels of harmful fields
Unbeatable price-performance ratio
Made in Sweden!
European Standards, except UK, Ireland, Belgium and Italy
Nominal (maximal) voltage
Maximal power load
Mains inlet socket
International standard IEC-320 for 10 ampere
Internal cable area
2 (1 unfiltered, 1 NIF filtered, both SP protected)
Non-Intrusive Filtering (up to 40)
Surge protection (SP)
L to 0, L to Ground and 0 to Ground
Brackets for wall mount and rubber feet as floor stands