1, Application
This series of products can be used as appropriative wind and electricity interlocking assembly switches for digging surfaces in AC 50 Hz, 1140V, 660V or 380V, rated current≤ 400A power supply circuits in coal mines. The assembly switch is suitable for various combinations of working surface power loads and blower loads. When a working surface needs a standby blower, the assembly switch can make the standby blower switched automatically. And the assembly switch can drag opposite revolving blower for wind and electricity interlocking. Gas, wind and electricity interlocking can be realized ff the starter is attached with the FDZB methane, wind and electricity interlocking equipment made by our company.

2, Protective fnctions
1) The assembly switch has protective functions of overcurrent, short-circuit, phase loss, current
Leakage, wind and electricity interlocking and gas, wind and electricity interlocking etc.
2) Number of branches: Two branches or three branches.