Abb M2m Manual File

The manual provides detailed pin-out diagrams. This is where many installers encounter confusion if they are migrating from older thermal relays to the electronic M2M series.

The first section of the manual covers safety protocols. While often skipped by experienced technicians, this section is critical for new installations. It outlines the "Competent Personnel" requirements—stipulating that only qualified electricians should handle the device. It also defines the environmental conditions, such as operating temperature ranges (typically -25°C to +55°C) and altitude derating factors. abb m2m manual

Every protective function (overcurrent, earth fault, thermal overload) is a . Each stage has: The manual provides detailed pin-out diagrams