| Specification |
Description |
| Part Number |
3RH2911-1HA21 |
| Alternative Part Number |
3RH29111HA21 |
| Manufacturer |
Siemens |
| Part Type |
Auxiliary Switch Block |
| Voltage |
690 V (Insulation) |
| Configuration |
2NO/1NC |
| Current Rating |
10 A |
| Dimensions |
36 x 43.7 x 37.5 mm |
| Mounting Type |
Snap-On |
| Ambient Temperature (Operation) |
-25°C to +60°C |
| Ambient Temperature (Storage) |
-55°C to +80°C |
| Mechanical Service Life |
Typical 10,000,000 switching cycles |
| Electrical Endurance |
Typical 200,000 switching cycles at AC-15 at 230 V |
| Insulation Voltage |
Rated value 690 V |
| Surge Voltage Resistance |
Rated value 6 kV |
| Protection Class IP on the Front |
IP20 |
| Suitability for Use |
Contactor relay and power contactor |
| Auxiliary Circuit |
1 NC contact for auxiliary contacts (instantaneous contact) |
| Product Function |
Mirror contact according to IEC 60947-4-1 and positively driven operation according to IEC 60947-5-1 |
| Commodity Code |
853650 |
The Siemens 3RH2911-1HA21 is a robust and reliable auxiliary switch block designed for industrial applications. With a snap-on mounting type, it offers easy installation and a secure fit. The switch block operates efficiently within a wide range of ambient temperatures, ensuring reliable performance in various environments. It boasts a high mechanical service life and electrical endurance, making it a durable choice for your system. The switch block also features a high insulation voltage and surge voltage resistance, providing excellent protection against electrical disturbances. With its IP20 protection class, it is designed to keep out solid objects larger than 12.5 mm. The switch block is suitable for use with contactor relays and power contactors, offering versatility in application. It also complies with IEC standards for mirror contact and positively driven operation, ensuring safety and reliability in operation.
The Siemens 3RH2911-1HA21 is a robust and reliable auxiliary switch block, designed to offer superior performance in a variety of industrial applications. This compact device, measuring 36 x 43.7 x 37.5 mm, is engineered to withstand insulation voltages up to 690V, making it a safe and dependable choice for your electrical systems.
The switch block features a snap-on mounting type for easy installation and screw-type terminals for secure connections. It comes with 2NO/1NC contacts, providing flexibility in controlling your circuits. The device is capable of enduring up to 10 million mechanical switching cycles and 200,000 electrical endurance cycles at AC-15 at 230V, ensuring long-lasting operation.
With an ambient operating temperature range of -25 to +60 degrees Celsius, the Siemens 3RH2911-1HA21 can perform optimally in various environmental conditions. It also boasts safety-related features such as mirror contact and positively driven operation according to IEC standards, enhancing its reliability.
Whether you're upgrading your existing system or building a new one, the Siemens 3RH2911-1HA21 auxiliary switch block is a high-quality component that delivers consistent, efficient performance.
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4 min read
December 13, 2024
