This certificate proves that the M2AA112-250 / M3AA112-280 frequency converters have passed the explosion-proof test and can be used with ABB ACS 800, ABB ACS 550 and ABB ACS 350 motors
This Type Examination Certificate, issued by Nemko AS, confirms that the listed ABB asynchronous motors comply with the Essential Health and Safety Requirements of the ATEX Directive (94/9/EC) for use in potentially explosive atmospheres. The certificate details the equipment series, duty types, ambient temperature limits, and required protective measures.
The document also lists the applicable technical files, frequency converters that may be used, ingress protection codes, and special conditions for safe use. It provides a schedule of motor designations (e.g., M2AA112, M3AA112) with their voltage, current, and speed ranges.
| Ambient temperature range | 20 °C – 40 °C (operation up to 60 °C permitted) |
|---|---|
| Ingress Protection (IP) code | IP55 for frame size 200‑280; IP56 or IP66 allowed for frame size 112‑180 |
| Duty type | S2 (intermittent duty) |
| Voltage range | 380‑440 V (varies by motor size) |
The certificate number is Nemko 04ATEX3449.
The certificate covers the M2AA112, M3AA112, M2AA132, M3AA132, M2AA160, M3AA160, M2AA180, M3AA180, M2AA200, M3AA200, M2AA225, M3AA225, M2AA250, M3AA250, M2AA280, and M3AA280 series.