MA05/10 Series Unique units combining filtering, surge protection and ring suppression for protection against the effects of electrical disturbances on ac power cabling O Combines high quality filtering with ring suppression O Three different packages available, Wall/floor mounted (I) DIN-rail mounted (D) Standard filter case (SC) O Added thermal fuse protection O Unique design for EMC compliance exceeding IEC6100045, level 4 Telematics MA05 and MA10 Series With a unique three-stage combination emissions and the susceptibility of the protects electronic equipment and computer of protection elements, these units associated equipment to emissions from networks against the effects of noise suppress conducted RFI and voltage other sources. Thermal fusing is also pollution induced in mains power supplies. surges. The circuit elements are first, incorporated into each device as an A unique combination of circuit elements surge clipping components to absorb additional safety feature. cleans up the effects of industrial noise transient surges that may otherwise and surges caused by lightning, switching damage equipment second, a filter to Manufactured in accordance with devices, thyristor controls, transmission suppress noise in the system and third, ISO9001, the performance of all units is system overloads and power-factor correction ring suppression. The third of these tested before despatch and exceeds the circuits. prevents surges causing the filter to ring requirements of IEC 61000-4-5, level 4. (oscillate) under low load conditions Since MA05/10 devices suppresss The units are available in alternative an effect that actually accentuates conducted RFI and voltage surges they versions SC suffixed models housed in interference in most commercially enable associated equipment to comply standard filter cans with connections via available filters. The Transient response with this aspect of the European safety-shrouded spade terminations graph printed overleaf illustrates the CE mark standards. Standard I units for wall or floor mounting typical output response of an MA10/D in a plastic enclosure with screw terminals when a 6kV, 3kA standard 8/20s surge inside or D suffixed units for G- or Top-hat is applied to the input. section DIN-rail mounting. The SC and I units are useful for OEM incorporation into The MA05 and MA10 devices packaged systems as a superior alternative operate in both signal to conventional filters and also for retro- directions and fitting to existing systems. The D type therefore reduce units are ideally suited to protecting panel- both electro- mounted equipment. magnetic AC Power/EMC ProtectionMA05/10 EMC/Surge Protection Devices Guide to applications and selection Industrial Control Systems Industrial control systems utilising programmable logic controllers (plc) and industrial computers are particularly vulnerable due to the aggressive electrical environments for which they are intended, such as process plants, factories and water treatment sites. Although industrial computers and plcs are designed to be rugged, protection against the extreme voltage surges caused by lightning activity and the switching of large electrical motors demands the extra protection provided by the DIN rail mounting MA05/D and MA10/D units. Typically used in the controls section of a motor control cubicle (MCC), this range provides voltage surge and RFI protected power. Figure 1 Typical MA05/D or MA10/D installation for industrial control