Scope of Application
The OKM5E series Molded Case Circuit Breakers (here in after referred to as the circuit breakers) are suitable for power lines with AC 50Hz, rated insulation voltage of 750V, rated voltage up to 690V and below, and rated current up to 630A. Under normal conditions, the circuit breakers are used for the infrequent switching of lines and the infrequent starting of motors. They are designed for power distribution and provide protection against overload, short circuit, and undervoltage for lines and power supply equipment. As new products developed to meet the demands of the Ubiquitous Power Internet of Things, this series incorporates multiple proprietary innovations of our company.
The circuit breakers comply with the GB14048.2 standard, the State Grid standard Q/GDW 1376.3, and the NARI integrated switch protocol 2019. They can be installed vertically (upright) or horizontally (side-mounted).
Operating Conditions
a) Altitude not exceeding 2000m;
b) Ambient air temperature: upper limit not exceeding +40°C, lower limit not below -5°C;
c) Installed in locations free from rain and snow;
d) Pollution degree: Level 3;
e) Installation category: II.