One. Basic parameters：

1.nominal voltage：24-120V ；   

2.maximum limited current：20-40A ；   

3.soft boot：≤2S；

4.operating ambient temperature：-20-60℃；

5.constant-speed control；

6.self-consuming：<30uA；

Two. Defensive function

1.over discharge protection

2.over-voltage protection

3.current-limiting protection

4.temperature protection

5blocking/low speed protection（≤100rpm）

6.phase line short circuit protection

7.open-phase protection

8.short-circuit protection

Three. Others

1.The product confirms to the requirement of

IEC62841-1；

2.The product confirms to the requirement of

IEC60335-1 Annex R；

3.The product confirms to the requirement of

ROHS，REACH，EMC and so on；

4.Waterproofing grade of  the product is

IP56.