3RH1921-1HA22 is an auxiliary switch module produced by SIEMENS Company, which is suitable for various industrial automation control systems. The module has two normally open contacts and two normally closed contacts, which can effectively improve the flexibility and reliability of circuit control.
Manufacturer: SIEMENS Model: 3RH1921-1HA22 Contact type: 2no + 2 NC Current path: 1 NC, 1 NC, 1 NO, 1no Size: S00 Screw Terminal Net Weight: 0.0442 kg Product Life Cycle: PM300: Active SIEMENS 3RH1921-1HA22 Auxiliary Switch Module is a high-quality product specially designed for industrial automation control systems.It uses advanced manufacturing technology to ensure stability and reliability in a variety of harsh environments. The module is equipped with two normally open contacts and two normally closed contacts, which can meet the needs of different application scenarios. Its compact design makes it easy to install and maintain, while providing a reliable electrical connection. By using high-quality materials and strict production standards, the SIEMENS ensures excellent performance and long service life of the auxiliary switch module.In addition, the module supports physical coding combinations with specific contactor relays, such as 3RH2140 * and 3RH2440 *, in accordance with EN50011. Users can choose the appropriate terminal to connect according to their specific needs, so as to achieve efficient and safe control.