According to IEC61730-2:2004 standard requirement

Purpose:

modules provided with junction boxes intended for attachment of a permanent wiring system using conduit must provide assurance of the ability of the box construction to withstand load forces which may be applied to the conduit during and after installation

Technical specifications:

1,Controller set frequency range:0~120 Hz

2,When set the frequency is 60HZ, principal axis revolution: 1 rev./min

3,Principal axis revolution :N rev./min=frequency Hz / 60

4,Timing range:1~9999s

5,Use power is single phaseAC220V,Power consumption100W

Conduit outer diameter suitable counterweight table :