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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-2FA40 |
| Alternative Part Number | 3RH19112FA40 |
| Manufacturer | Siemens |
| Part Description | This is an Auxiliary Switch Block, designed for use with contactor relays and motor contactors. |
| Size | S00 |
| Protection Class IP on the Front | IP20 |
| Ambient Temperature During Storage | -55 to +80 °C |
| Ambient Temperature During Operation | -25 to +60 °C |
| Mechanical Service Life | Typical 10,000,000 switching cycles |
| Electrical Endurance | Typical 200,000 switching cycles at AC-15 at 230 V |
| Contact Reliability | One incorrect switching operation of 100 million switching operations (17 V, 5 mA) |
| Insulation Voltage with Degree of Pollution 3 | Rated value 690 V |
| Surge Voltage Resistance | Rated value 6 kV |
| Number of NC Contacts for Auxiliary Contacts | 0 |
| Number of NO Contacts for Auxiliary Contacts | 4 |
| Operating Current of the Auxiliary Contacts at AC-12 | 10 A at 24 V, 10 A at 230 V, maximum 10 A |
The Siemens 3RH1911-2FA40 is a robust and reliable auxiliary switch block, designed to offer exceptional performance in a variety of industrial applications. This compact unit, measuring just 42mm, is spring-loaded for ease of use and features a high insulation voltage of 690V, ensuring safe operation even in challenging conditions.
The switch block is part of the renowned SIRIUS product line and is suitable for use with contactor relays and motor contactors. It boasts an impressive mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V.
With an ambient operating temperature range of -25 to +60 degrees Celsius, this auxiliary switch block is built to withstand a wide range of environmental conditions. It also offers a high degree of protection with an IP20 rating on the front.
The Siemens 3RH1911-2FA40 auxiliary switch block is a testament to Siemens' commitment to quality, reliability, and innovation, making it an excellent choice for your industrial automation needs.
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Frequently Asked Questions
What is the main function of this Siemens auxiliary switch block?
The Siemens 3RH1911-2FA40 is an auxiliary switch block designed for use with contactor relays and motor contactors. It helps in controlling the operation of these devices.
What are the technical specifications of this auxiliary switch block?
This auxiliary switch block operates at an insulation voltage of 690V with a degree of pollution 3. It has a surge voltage resistance rated value of 6kV. It has 4 NO (Normally Open) contacts for auxiliary contacts. The operating current of the auxiliary contacts at AC-12 is 10A at both 24V and 230V.
What is the operating temperature range for this part?
The Siemens 3RH1911-2FA40 can operate effectively in temperatures ranging from -25°C to +60°C. It can be stored in temperatures ranging from -55°C to +80°C.
What is the mechanical service life of this auxiliary switch block?
The Siemens 3RH1911-2FA40 has a mechanical service life of approximately 10 million switching cycles.
What is the electrical endurance of this part?
The electrical endurance of the Siemens 3RH1911-2FA40 is typically 200,000 switching cycles at AC-15 at 230V.
What is the protection class of this auxiliary switch block?
The Siemens 3RH1911-2FA40 has a protection class IP20 on the front.
What is the contact reliability of this part?
The Siemens 3RH1911-2FA40 has a contact reliability of one incorrect switching operation of 100 million switching operations (17 V, 5 mA). The contact reliability of auxiliary contacts is 1 faulty switching per 100 million (17 V, 1 mA).
