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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-1GA04 |
| Alternative Part Number | 3RH19111GA04 |
| Manufacturer | Siemens |
| Product Type | Auxiliary Switch Block |
| Number of Contacts | 4 NC (Normally Closed) |
| Rated Insulation Voltage | 690 V |
| Mounting Type | Snap On Mount |
| Terminal Type | Screw Terminal |
| Contact Reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Mechanical Operating Cycles | Typically 10,000,000 |
| Electrical Operating Cycles | Typically 200,000 at AC-15 / at 230 V |
| Ambient Operating Temperature | -25 … +60 °C |
| Storage Temperature | -55 … +80 °C |
| Protection Class | IP20 |
| Compliance | EN 50011 |
| Product Function | Mirror contact and positively driven operation according to IEC 60947-4-1 and IEC 60947-5-1 |
| Dimensions (W x H x D) | 36.5 mm x 37.5 mm x 41.5 mm |
| Commodity Code | 853650 |
The Siemens 3RH1911-1GA04 is a high-quality auxiliary switch block designed for seamless integration with contactor relays. This component is engineered to provide reliable switching operations within industrial control systems. It features four normally closed (NC) contacts, conforming to the DIN EN50011 standard, ensuring compatibility with a wide range of applications.
Constructed with durability in mind, the switch block boasts a mechanical service life of approximately 10 million switching cycles, making it a robust choice for demanding environments. The electrical endurance is equally impressive, with a typical rating of 200,000 cycles at AC-15, 230V.
Safety is a priority with this auxiliary switch block, which comes with an IP20 protection class on the front, safeguarding against solid objects larger than 12.5mm. It is designed to withstand insulation voltages up to 690V and has a surge voltage resistance rated at 6kV, providing peace of mind in various operating conditions.
The compact design features snap-on mounting for quick and easy installation, with dimensions of 36.5mm in width, 37.5mm in height, and 41.5mm in depth. The screw-type terminals offer a secure and reliable electrical connection for auxiliary and control current circuits, accommodating a range of conductor cross-sections.
This auxiliary switch block is a testament to Siemens' commitment to quality and reliability, making it an essential component for enhancing the functionality and efficiency of your industrial control systems.
Commonly Asked Questions
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Frequently Asked Questions
What is the voltage rating for this auxiliary switch block?
The auxiliary switch block is rated for an insulation voltage of up to 690 V, with a degree of pollution 3.
Can this auxiliary switch block be mounted on a DIN rail?
Yes, it is designed for snap-on mounting, which is compatible with DIN rail systems.
What type of terminals does this auxiliary switch block have?
It comes with screw-type terminals for secure and reliable electrical connections.
What is the IP rating of this auxiliary switch block?
This auxiliary switch block has an IP20 protection class rating on the front.
What are the dimensions of this auxiliary switch block?
The dimensions are 36.5 mm in width, 37.5 mm in height, and 41.5 mm in depth.
How many normally closed (NC) contacts does this auxiliary switch block have?
This auxiliary switch block has 4 normally closed (NC) contacts.
What is the ambient temperature range for operating this auxiliary switch block?
The operating temperature range for this auxiliary switch block is between -25 °C and +60 °C.
What is the mechanical service life of this auxiliary switch block?
The mechanical service life is typically around 10 million operating cycles.
Does this auxiliary switch block have mirror contacts according to IEC 60947-4-1?
Yes, it features mirror contacts in compliance with IEC 60947-4-1 standards.
Is the operation of this auxiliary switch block positively driven according to IEC 60947-5-1?
Indeed, it has a positively driven operation as per the IEC 60947-5-1 standard.
