3RH1921-1DA11
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Overview of Siemens 3RH1921-1DA11
Buy genuine Siemens 3RH1921-1DA11 online for your automation system. The Siemens 3RH1921-1DA11 is a robust, snap-on side-mount auxiliary contact block designed to enhance the functionality of Sirius 3RT1 contactors. It features one normally open (NO) and one normally closed (NC) contact, making it a versatile solution for control circuit signaling in industrial environments. With its quick and secure snap-on installation, it easily mounts to the front of contactors from size S0 to S12, streamlining integration into your control panel or motor starter assembly. Built to meet IEC 60947-5-1 standards, the 3RH1921-1DA11 ensures safety, reliability, and consistent performance in demanding automation applications. Shop Siemens 3RH1921-1DA11 to boost the monitoring and control capabilities of your equipment.
Key Features of Siemens 3RH1921-1DA11
- Snap-on side-mount auxiliary contact block with 1 NO + 1 NC contacts
- Designed for easy integration with Sirius 3RT1 series contactors, sizes S0 to S12
- Screw-type terminals for solid, stranded, or finely stranded conductors
- Conforms to IEC 60947-5-1 for electrical safety and reliability
- Compact dimensions (80 x 10 x 71 mm) for flexible panel layout
- High mechanical service life—up to 10,000,000 switching cycles
- Contact rating: 6A at 400V AC, 10A at 600V DC, suitable for a wide range of control circuits
- Durable construction for use in industrial environments
- Easy installation with no special tools required
Technical Specs of Siemens 3RH1921-1DA11
Review Siemens 3RH1921-1DA11 technical data for detailed parameters before installation.
| Contact Configuration | 1 NO, 1 NC |
|---|---|
| Mounting Type | Side-mount, snap-on |
| Contact Rating | 6A at 400V AC, 10A at 600V DC |
| Max. Switching Cycles | 10,000,000 |
| Terminal Type | Screw-type |
| Conductor Size | 0.5–2.5 mm² (solid/stranded), 20–14 AWG |
| Dimensions | 80 x 10 x 71 mm |
| Weight | 0.106 lb |
Applications / Use Case
This Siemens 3RH1921-1DA11 is commonly used in industrial automation worldwide. It is ideal for process control, machine automation, and production line systems, where reliable auxiliary signaling for contactors and motor starters is essential. Its robust design makes it suitable for factory control panels, packaging, and conveyor operations, as well as motion control setups. Deploy the 3RH1921-1DA11 to monitor contactor status, provide safety interlocks, or extend control circuit logic in demanding applications.
Price & Availability
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