Product Type:Switch
Product ID:3RH1921-1HA22
Siemens Type Designation:Auxiliary Switch Block
Auxiliary switch presence:Front-facing
Contact Types:[“2 NO”,”2 NC”]
Current Path:[“1 NC”,”1 NC”,”1 NO”,”1 NO”]
Terminal Size:S00
Terminal Type:53/54, 61/62, 71/72, 81/82
Physical Coding:Yes
Compatible Relays:3RH2140*, 3RH2440*
Product Lifecycle (PLM):PM300: Active
Net Weight (kg):0.0442 Kg
Product Group:5344
Product Class:A: Standard product, returnable within guidelines/period
The Siemens 3RH1921-1HA22 auxiliary switch block is engineered with precision to withstand harsh industrial conditions, providing robust performance over extended periods.
Equipped with an advanced contact system, this switch block ensures low resistance and high reliability, minimizing downtime and maintenance needs.
Designed for compatibility with Siemens’ PLCs and other automation equipment, it facilitates easy integration into existing systems, enhancing operational efficiency.
This auxiliary switch block is meticulously crafted from high-grade steel, ensuring durability and resistance against corrosion and wear, making it suitable for diverse industrial applications.
With its wide operating temperature range, this switch block can function reliably in various climates, making it a versatile choice for global manufacturing facilities.











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