Thermal overload protection for motors (MPTTR) - Arc protection - Merging unit - Motor protection - Product Guide - REM620 Motor Protection and Control - Relion 615 series - 2.0 FP1 IEC - IEC - 09.02.2023

REM620 Product Guide

Table 1. Thermal overload protection for motors (MPTTR)
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: fn ±2 Hz
Current measurement: ±1.5% of the set value or ±0.002 × In (at currents in the range of 0.01...4.00 × In)
Operate time accuracy 1 ±2.0% of the theoretical value or ±0.50 s
1 Overload current > 1.2 × Operate level temperature