Mercury relays offer much faster switching than mechanical contactors, and though not as fast as solid state devices, are far more economical and can be mounted in a smaller foot print. Mercury relays are hermetically sealed with high quality glass to metal seals. The stainless steel tube is totally encapsulated in high grade UL approved epoxy to prevent moisture damage and voltage breakdown through the protective coating. The coils are wound on compact nylon bobbins and molded onto the metal tube to provide minimum power loss. This allows for low coil power required to actuate the contactor. This also enables the units to handle high loads with minimum de-rating due to higher ambient temperatures. Inert gases internally prevent excessive arcing between the mercury and the electrodes which enables the unit to function for millions of cycles with very low contact resistance, and minimum deterioration of the internal parts. Available in all standard coil voltages, in single, two and three pole arrangements: Other coil voltages available upon request. In multiple pole units each tube is actuated by its own coil. This eliminates pull-in variation between contact tubes, assuring consistent switching.
水银继电器比机械接触器提供更快的开关, 虽然不像固态设备那么快, 但更经济, 可以安装在一个较小的脚印。水银继电器密封, 高品质的玻璃, 以金属密封。不锈钢管完全封装在高品位的 UL 认可的环氧树脂, 以防止湿气损害和电压击穿通过保护涂层。线圈缠绕在紧凑的尼龙管上, 并模压到金属筒上, 以提供最小的功率损耗。这允许低线圈功率驱动接触器。这也使单位能够处理高负荷, 因为更高的环境温度, 最低的降级。惰性气体内部防止汞和电极之间的过多电弧, 使得该装置能够在极低接触电阻的数以百万计的周期中运转, 内部部件的最小劣化。可在所有标准线圈电压, 单, 二和三极点安排: 其他线圈电压可根据要求提供。在多杆单位每管由它自己的线圈驱动。这消除了接触管之间的拉入变化, 保证了一致的切换。