This document is about the Nemko ATEX certificate and describes three new frequency converters, a new grounding device, and a new IP code. The frequency converters can be used with ABB ACS 800, ABB ACS 550, and ABB ACS 350 motors. For frame size 112-180, the use of IP 56 or IP 66 protection class is allowed if the design for IP65 according to the assembly drawings is used. Additionally, a new alternative external grounding device is added. The document provides technical descriptions and drawings.
The EC‑Type Examination Certificate No. Nemko 04ATEX1448, issued by Nemko, verifies that the listed ABB asynchronous motors comply with the Essential Health and Safety Requirements of Directive 94/9/EC for use in potentially explosive atmospheres. The certificate covers a series of IP65 dust‑tight motors with aluminium housing, duty type S1, and specifies ambient temperature limits and voltage ranges.
The document also lists approved frequency converters (ABB ACS 800, ACS 550, ACS 350), the applicable ingress protection codes (IP65, IP56, IP66), and a new external grounding device (size M20). No special conditions for safe use are required beyond those stated in the schedule.
| Ingress Protection | IP65 |
|---|---|
| Duty Type | S1 |
| Ambient Temperature Range | -20 °C to 40 °C (operable up to 60 °C with tests) |
| Voltage / Frequency Range | 380‑420‑440 V, 50‑60 Hz |
The certificate number is Nemko 04ATEX1448.
ABB ACS 800, ABB ACS 550, and ABB ACS 350 are approved.
IP65 is required, but IP56 or IP66 may be used if the design drawings are followed.
No special conditions for safe use are listed.