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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-2FA22 |
| Alternative Part Number | 3RH19112FA22 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch Block |
| Contact Configuration | 2 Normally Closed (NC) & 2 Normally Open (NO) contacts |
| Rated Operational Voltage | 230 V ac |
| Rated Operational Current | 10 A |
| Insulation Voltage | Rated at 690 V |
| Impulse Voltage Resistance | Rated at 6 kV |
| Ambient Operating Temperature | -25 … +60 °C |
| Storage Temperature | -55 … +80 °C |
| Mechanical Operating Cycles | Typically 10,000,000 |
| Electrical Operating Cycles | Typically 200,000 at AC-15 / at 230 V |
| Contact Reliability | 1 faulty switching per 100 million (17 V, 1 mA) for auxiliary contacts |
| Protection Class | IP20 |
| Mounting Type | Snap-on mounting |
| Connection Type | Cage clamp connection |
| Conductor Cross-section | Solid: 2x (0.5 ... 2.5 mm²), Finely stranded with conductor end processing: 2x (0.5 ... 1.5 mm²) |
| Compliance | Mirror contact and positively driven operation to IEC 60947-4-1 and IEC 60947-5-1 respectively |
| Dimensions (W x H x D) | 36.5 mm x 37.5 mm x 46 mm |
The Siemens 3RH1911-2FA22 auxiliary switch block is a versatile and essential component for industrial control systems. Designed to seamlessly integrate with contactor relays and power contactors, this switch block is engineered to facilitate the reliable switching of motors. It features a robust construction with 2 normally closed (NC) and 2 normally open (NO) contacts, conforming to DIN EN50005 standards.
With a cage clamp connection, the 3RH1911-2FA22 ensures a secure and maintenance-free electrical connection, enhancing the overall reliability of your control system. The switch block operates at a voltage of 230 V ac and is capable of handling a current of up to 10 A, making it suitable for a wide range of applications.
The compact size of the switch block, classified as size S00, allows for efficient use of space within control cabinets. It boasts an IP20 protection class on the front, ensuring that the internal components are safeguarded against solid objects larger than 12.5 mm.
The 3RH1911-2FA22 is characterised by its impressive mechanical and electrical operating life, capable of withstanding millions of cycles, which speaks to its durability and longevity in demanding industrial environments. Its contact reliability is exceptional, with a very low probability of incorrect switching operations, ensuring consistent performance and minimal downtime.
This auxiliary switch block is a testament to Siemens' commitment to quality and reliability, making it a preferred choice for professionals seeking to enhance the efficiency and dependability of their control systems.
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Frequently Asked Questions
What is the voltage rating for the auxiliary switch block?
The auxiliary switch block is rated for 230 V ac.
What is the current rating of this auxiliary switch block?
This auxiliary switch block has a current rating of 10 A.
Can you describe the contact configuration of the auxiliary switch block?
The contact configuration of the auxiliary switch block includes 2 normally closed (NC) and 2 normally open (NO) contacts.
What type of connection does the auxiliary switch block support?
The auxiliary switch block supports a cage clamp connection.
What is the typical mechanical operating life of this auxiliary switch block?
The typical mechanical operating life of the auxiliary switch block is around 10,000,000 cycles.
What is the typical electrical operating life of the auxiliary switch block at AC-15, 230 V?
At AC-15, 230 V, the typical electrical operating life of the auxiliary switch block is approximately 200,000 cycles.
What is the insulation voltage rating with a degree of pollution 3 for this auxiliary switch block?
The insulation voltage rating with a degree of pollution 3 for the auxiliary switch block is 690 V.
What is the impulse voltage resistance of the auxiliary switch block?
The impulse voltage resistance of the auxiliary switch block is rated at 6 kV.
What is the protection class IP rating on the front of the auxiliary switch block?
The protection class IP rating on the front of the auxiliary switch block is IP20.
What are the ambient temperature operating limits for the auxiliary switch block?
The ambient temperature operating limits for the auxiliary switch block are between -25 °C and +60 °C during operation, and -55 °C to +80 °C during storage.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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