3RH21221BB401AA0
The Siemens SIRIUS 3RH2122-1BB40-1AA0 auxiliary contactor relay is a special version with screw terminals for vertical mounting. It features 2NO+2NC contacts, a 24V DC coil, and a standard size design of S00.
Product Positioning
3RH2122-1BB40-1AA0 is a special version in the SIRIUS 3RH2122 series. The suffix -1AA0 indicates that the screw terminal is installed vertically, which is suitable for specific installation space configuration requirements.
Core Product Advantages and Features
Vertical Installation Special Version
The suffix -1AA0 indicates that the screw terminal is installed vertically, which distinguishes it from the standard horizontal installation model in terms of installation orientation.
2NO+2NC instantaneous contact
It provides two sets of normally open and two sets of normally closed instantaneous action contacts to meet the needs of multi-loop interlocking control applications.
24V DC coil
The rated coil voltage is 24V DC, and the operating range is approximately 0.8 to 1.1 times the rated value. The signal recognition is stable.
Screw terminal wiring
The screw terminals can be connected to single-core or stranded conductors of 0.5 to 4 square millimeters, providing high wiring flexibility.