3RH2911-1MA20
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The Siemens 3RH2911-1MA20 is an original factory-grade auxiliary contact block designed for reliable integration in industrial control systems. This front-mounted auxiliary switch block features 2 normally open (2NO) contacts, making it an essential component for enhancing the functionality of Siemens 3RH21 control relays and 3RT201 contactors. Known for its durability and precision, this model conforms to IEC 60947-5-1 standards, ensuring compatibility and safety in automation applications. Its robust construction and ease of mounting offer seamless installation on panels, supporting stable operation in diverse environments with an IP20 protection rating and operating temperature up to 60°C. Buy Siemens 3RH2911-1MA20 to elevate your control solutions with a trusted component from a leading automation brand.
Key Features of Siemens 3RH2911-1MA20
- Front-mounted auxiliary contact block with snap-on design for easy installation
- Two Normally Open (2NO) contacts for flexible control circuit configurations
- Compliance with IEC 60947-5-1 industrial standards for auxiliary contacts
- Compatible with Siemens 3RH21 relays and 3RT201 contactors for system integration
- Durable construction designed for up to 10 million mechanical switching cycles
- Panel mounting style with IP20 protection rating ensuring safe operation
- Identification number 20 for clear recognition in control cabinet setups
- Maximum operating temperature of +60°C to suit various industrial settings
- Compact design reducing panel space requirements
Explore Siemens 3RH2911-1MA20 specifications for detailed parameters
| Specification | Details |
|---|---|
| Mounting Style | Panel Mount (Front) |
| Auxiliary Contacts | 2 Normally Open (2NO) |
| Identification Number | 20 |
| Operating Current (AC-15) | 6A at 24V, 6A at 230V, 3A at 400V |
| Protection Rating | IP20 |
| Max Operating Temperature | +60°C |
| Mechanical Service Life | 10,000,000 switching cycles |
Applications / Use Case
This Siemens 3RH2911-1MA20 auxiliary contact block is commonly used in industrial automation worldwide. It is ideal for enhancing control relays and contactors in machine automation, production line systems, factory control panels, and packaging and conveyor operations. Its reliable switching capabilities make it suitable for complex process control tasks where auxiliary signals are needed to monitor or extend primary contactor functions. By integrating this auxiliary block, engineers ensure efficient control circuit feedback, improved safety interlocking, and flexible automation logic execution.
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