DCNHR Series Contactor Relays

Littelfuse's DCNHR series 450 V high-current, high-voltage DC contactor relay is a normally open (monostable) relay with a resin body for corrosion resistance in harsh automotive ‎environments. Versions are available with a pulse width modulation (PWM) coil to reduce power for keeping the contacts closed. Sealed contacts help ensure there is no leakage of the electrical arc for safety. The relay's high-current permanent magnets blow out the magnetic field horizontally to rapidly extinguishing of the DC arc. The DCNHR series contactor relay is available for 20 A to 300 A contact switching as well as with and without polarized contacts to suit the polarity of the application.