ABB REF 542plus Technical Reference Manual

Mechanical robustness
According to IEC 60255-21-1.
Climatic conditions
Cold test according to IEC 60068-2-1.
Dry heat test according to IEC 60068-2-2.
Certifications
ATEX
The REF 542plus unit, when used as a motor protection, can optionally comply with
the directive 94/9/EC from the European Community for explosives environments.
This directive defines how motor protection units behave in potentially explosive
environment. The EC type certification number from PTB (Physikalisch Technische
Bundesanstalt) is PTB 02 ATEX 3000.
DNV
The REF 542plus unit, when used in marine application, can optionally comply with
Det Norske Veritas’ Rules for classification of ships, High Speed & Light Craft and
Det Norske Veritas’ Offshore Standards.
IEC 61850 Certificate level A
The conformance test has been performed according to IEC 61850-10 by KEMA
Nederland.
50
REF 542plusREF 542plus
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual
1MRS755859

ABB REF 542plus Specifications

General

Brand	ABB
Model	REF 542plus
Category	Control Unit
Language	English