Parameter：

1. A maximum of 1 only 4 conversion or only 2 or 4 only convert the relay N.O 1 and N.C contact mechanical life test. Test only has 8 counter respectively and reliable action of eight relay contact to count. Test to set number, check the value of each counter, and compared with the number of actual action, look to whether little or much plan, to determine relay failures.

2．Test Number 1-9999999。

3．The test frequency ：1-300Times/min

4．voltage coil driver :0-60V 3A DC，or 0-220V AC。

5．Power relay contact load :0-30VDC 0-30A(Max40A)