General
HMLS series switchgear is a combined low voltage device assembled with standard modules, suitable for power system of AC 50Hz or 60Hzf rated working voltage 660V and below, used to generate, transmit, distribute and convert the electric energy and control the electric energy consumption device. It is fully line with the standard IEC439 and Part5 of standard VDE660, national standard GB7251-87 Low-voltage. Switchgear Assembly and professional standard ZBK36001-89 Low-voltage Draw-out Switchgear Assembly as well.
Basic technical parmeters
Rated insulation voltage | 660V |
Rated working current | 380V |
Main bus(Max working current) | 5500A(IP00)、 4700(IP30) |
Main bus short-time withstand current(1s) | 100kA(Virtual value) |
Main bus peak withstand current | 250kA(Max value) |
Vertial bus(Max working current) | 1000A |
Vertial bus short-time peak current | Standard type90kA(Max value) Strengthening type 130kA(Max value) |