Power entry module

They are also quite compact, taking up a small amount of space on the equipment’s chassis, or printed circuit board.

Power entry module manufacturers take on the responsibility of producing power entry module products in such a way that they meet the standards of one or more of these safety standard agencies, so that equipment manufacturers using them need not take responsibility for the internal details of safety certification.

Power entry module manufacturers also pay independent testing labs to test their products against the safety standards, so that the products can carry the safety agency’s approval mark.

Power entry modules are available with electromagnetic interference filters with very low leakage current ratings, even those suitable for direct patient contact in accordance with UL 544 and IEC 60601-1.

Power entry modules are also available rated as water resistant at IP65, with seal protection at the panel opening, around the fuse holders when provided, and between the inlet housing and connector pins.

A simple power entry module, the rectangular device below a red power switch in the photograph. This example consists of an IEC 60320 C14 inlet connector and fuse holder. The fuse is protected by a sliding plastic cover, which requires the power lead to be removed before it can be opened.