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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-1GA22 |
| Alternative Part Number | 3RH19111GA22 |
| Manufacturer | Siemens |
| Rated Insulation Voltage | 690 V |
| Surge Voltage Resistance | 6 kV |
| Number of Auxiliary Contacts | 4 (2 NO + 2 NC) |
| Mounting Type | Snap-on mounting |
| Width | 36.5 mm |
| Height | 37.5 mm |
| Depth | 41.5 mm |
| Electrical Connection | Screw-type terminals |
| Connectable Conductor Cross-section | For auxiliary contacts: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Operating Current at AC-12 | 10 A at 24 V, 10 A at 230 V, 10 A maximum |
| Operating Current at AC-15 | 6 A at 24 V, 6 A at 230 V, 3 A at 400 V, 1 A at 690 V |
| Operating Current at DC-13 | 6 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V |
| Mechanical Service Life | 10 million switching cycles typical |
| Electrical Endurance | 200,000 switching cycles at AC-15 at 230 V typical |
| Ambient Operating Temperature | -25 ... +60 °C during operation |
| Storage Temperature | -55 ... +80 °C |
| Protection Class | IP20 on the front |
| Suitability for Use | Contactor relay and power contactor |
| Product Function | Mirror contact and positively driven operation according to IEC standards |
| Certifications | General Product Approval, Functional Safety/Safety of Machinery, Declaration of Conformity |
The Siemens 3RH1911-1GA22 is a high-quality auxiliary switch block designed to complement contactor relays and power contactors within industrial control systems. This component is engineered to facilitate reliable switching operations, boasting a mechanical service life of approximately 10 million cycles and an electrical endurance of 200,000 cycles at AC-15 at 230V, which is typical for devices of this nature.
Crafted with precision, the switch block features 2 normally open (NO) and 2 normally closed (NC) contacts, conforming to the DIN EN50011 standard. The robust screw connection ensures secure and stable wiring, making installation straightforward and maintenance minimal. With an insulation voltage rated at 690V and a surge voltage resistance of 6kV, the 3RH1911-1GA22 is built to withstand challenging electrical environments.
The compact dimensions, with a width of 36.5mm, height of 37.5mm, and depth of 41.5mm, allow for efficient use of space inside control cabinets. The snap-on mounting design further simplifies integration into existing systems. The switch block operates reliably within a broad range of ambient temperatures, from -25°C to +60°C during operation, ensuring consistent performance even in demanding conditions.
Safety is a paramount consideration, and this auxiliary switch block includes mirror contacts according to IEC 60947-4-1 and positively driven operation as per IEC 60947-5-1, enhancing the overall safety and reliability of the control system it is part of.
The Siemens 3RH1911-1GA22 auxiliary switch block is a testament to Siemens' commitment to quality, reliability, and innovation in industrial control technology. It is an essential component for professionals seeking to optimise their control systems for both performance and safety.
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 used with both contactor relays and power contactors?
Yes, this auxiliary switch block is suitable for use with both contactor relays and power contactors.
What is the IP protection class of this auxiliary switch block?
The auxiliary switch block has an IP20 protection class on the front.
What are the ambient temperature limits for operating this auxiliary switch block?
The auxiliary switch block can operate within an ambient temperature range of -25 to +60 °C and can be stored in temperatures ranging from -55 to +80 °C.
What is the mechanical service life of this auxiliary switch block?
The mechanical service life of the auxiliary switch block is typically around 10 million switching cycles.
What is the electrical endurance of this auxiliary switch block at AC-15, 230 V?
At AC-15, 230 V, the electrical endurance of the auxiliary switch block is typically 200,000 switching cycles.
How many NO and NC contacts does this auxiliary switch block have?
The auxiliary switch block has 2 normally open (NO) and 2 normally closed (NC) contacts.
What is the surge voltage resistance of this auxiliary switch block?
The surge voltage resistance of the auxiliary switch block is rated at 6 kV.
What type of mounting does this auxiliary switch block support?
This auxiliary switch block supports snap-on mounting for easy installation.
What are the dimensions of this auxiliary switch block?
The dimensions of the auxiliary switch block are 36.5 mm in width, 37.5 mm in height, and 41.5 mm in depth.
What type of terminals does this auxiliary switch block use for electrical connections?
The auxiliary switch block uses screw-type terminals for its electrical connections.
Does this auxiliary switch block have mirror contacts according to IEC 60947-4-1?
Yes, the auxiliary switch block features mirror contacts according to IEC 60947-4-1.
Is the operation of this auxiliary switch block positively driven according to IEC 60947-5-1?
Yes, the auxiliary switch block has positively driven operation in accordance with IEC 60947-5-1.
Part conditions explained
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