Features: 1. High quality components: The DC solid-state relay uses a new SSR-PCB board, combined with more stable electronic components, to optimize the current output and load mode, making the line more stable, higher in reliability, and protecting the safety of electricity. 2. Flame-retardant shell: flame-retardant dust cover, high temperature resistance, strong protection; integrated shell: fire-proof, dust-proof, anti-loosening, safe and reliable. 3. Stable performance: This DC solid-state relay adopts a light-emitting diode design to clearly display the working on-off status. The internal epoxy resin encapsulated integrated design is anti-corrosion and earthquake-resistant, and the working performance is stable and reliable. 4. 3.00mm heat dissipation red copper base plate: The surface is made of oxygen-free plating, and ammonia nickel is added to the plating layer for fast heat dissipation and strong conductivity. 5. Wide application: This DC solid-state relay is mainly used in