IMO - Specialist Automation & Controls

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Frequently Asked Questions

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Question

Do I require an EMC filter?

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Answer

Modern inverter switching devices and the speed at which they operate have the potential to cause disturbance to sensitive devices and installations used locally.
To comply with the European EMC Directive EN61800-3, IMO's Declaration of Conformity (D of C) associated with Jaguar inverters states the mandatory use of the correct EMC filter (along with other recommendations) to reduce conducted interference emissions to below stated levels.
Generally, if the power supply connected to the inverter is a shared commercial type, ie a public utilities transformer supplying low voltage power to many premises, an appropriate level of filtering should be considered to avoid disturbance to a neighbours power supply.
Some Jaguar drives have built-in filters that will give adequate protection where short motor cables are used (<10mts).  Alternatively, a greater level of attenuation can generally be obtained by using one of a range of Jaguar footprint type filters, mounting under or adjacent to the inverter.
Please contact IMO for more details.

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