The GV121BAX is a 200+ amp 100 VDC contactor designed for demanding power switching applications in hazardous environments. It features a hermetically sealed design meeting UL1604 for Class I & II Division 2 and Class III hazardous locations, IP67 rating for temporary water immersion, and built-in coil suppression for all DC coils. The contactor offers multiple mounting options including PCB mountable configuration, stainless steel hardware with brass inserts for corrosion resistance, and position-insensitive installation flexibility. With a rated contact arrangement of SPST-NO main contacts and optional auxiliary contacts (SPST-NO or SPST-NC), mechanical life of 1,000,000 cycles, and maximum contact resistance of 0.4 mO, this contactor is ideal for marine, renewable energy, and industrial applications requiring reliable high-current switching in corrosive or explosive atmospheres.