Are the D-Line contactors rated to break DC voltages?
Are the D line contactors suitable to break DC voltage?
Tesys D contactors
Products sold and used in the United States
DC power circuit
Yes, 75 VDC (125 VDC for D115 & D150) per pole which means that through a four pole device breaking 300 VDC is possible by wiring all four power poles in series. However, be aware that the device current ratings will differ according to the number of poles in series and the type of application.
Devices are suitable but not UL Listed for DC applications.
See pages 28 through 31 of the attached link (8502CT9901R5/03)