Description
The Siemens 3RH2911-1HA22 is a versatile auxiliary contact block engineered to extend the functionality of SIRIUS Innovation 3RH2 contactors and contactor relays. Featuring a 2 normally open (NO) and 2 normally closed (NC) contact configuration, it enables additional control circuits, interlocking functions, and status signaling within industrial automation systems.
Designed for snap-on front mounting, this auxiliary switch block installs quickly without tools, ensuring reliable mechanical and electrical connection. Its compact and lightweight construction makes it ideal for space-constrained control panels while maintaining Siemens’ high standards for durability and performance.
This module is commonly used in motor control centers, automation panels, and machinery control systems where expanded auxiliary contacts are required.
Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3RH2911-1HA22 |
| Product Type | Auxiliary Contact Block |
| Series | SIRIUS Innovation 3RH2 |
| Contact Configuration | 2 NO + 2 NC |
| Number of Contacts | 4 |
| Mounting Type | Snap-on Front Mount |
| Compatibility | 3RH2 Contactors & Contactor Relays |
| Application | Control Circuits, Signaling, Interlocking |
| Net Weight | 0.055 kg |
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