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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH2911-1GA04 |
| Alternative Part Number | 3RH29111GA04 |
| Manufacturer | Siemens |
| Series | SIRIUS |
| Mounting Type | Snap-On Mount |
| Number of Contacts | 4NC (Normally Closed) |
| Rated Operational Voltage | 230 V ac |
| Rated Operational Current | 10 A |
| Protection Class | IP20 |
| Dimensions | 36 x 43.7 x 37.5 mm |
| Terminal Type | Screw-Type Terminals |
| 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 |
| Insulation Voltage | Rated value 690 V with degree of pollution 3 |
| Impulse Voltage Resistance | Rated value 6 kV |
| Contact Reliability | 1 faulty switching per 100 million (17 V, 1 mA) |
| Commodity Code | 853650 |
| Application | Suitable for use with contactor relays |
The Siemens 3RH2911-1GA04 is a high-quality auxiliary switch block designed to complement contactor relays in a variety of industrial applications. This component is part of the esteemed SIRIUS series and is engineered to facilitate reliable switching operations within electrical circuits. It features a snap-on mounting design for ease of installation and a compact form factor with dimensions of 36 x 43.7 x 37.5 mm, making it suitable for integration into space-constrained environments.
Crafted for durability and performance, the switch block boasts an impressive mechanical operating life of 10 million cycles and an electrical operating life of 200,000 cycles at AC-15, 230 V. It is equipped with four normally closed (NC) contacts, ensuring consistent and dependable operation. The switch block operates efficiently within a wide ambient temperature range, from -25°C to +60°C during operation, and can withstand storage temperatures from -55°C to +80°C.
Safety and compliance are paramount, and the 3RH2911-1GA04 meets these needs with an insulation voltage rated at 690 V and an impulse voltage resistance of 6 kV. It also adheres to IP20 protection class standards on the front, safeguarding against solid objects larger than 12.5 mm.
This auxiliary switch block is a testament to Siemens' commitment to quality and reliability, making it an essential component for professionals seeking to maintain or enhance the performance of their contactor relay systems.
Commonly Asked Questions
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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?
The current rating for this auxiliary switch block is 10 A.
How is the auxiliary switch block mounted?
The auxiliary switch block is designed for snap-on mounting.
What is the number of normally closed contacts in this auxiliary switch block?
This auxiliary switch block has 4 normally closed (NC) contacts.
What is the protection class of the auxiliary switch block?
The protection class for the front of the auxiliary switch block is IP20.
What are the dimensions of the auxiliary switch block?
The dimensions of the auxiliary switch block are 36 x 43.7 x 37.5 mm.
Can you specify the ambient temperature range for the operation of this auxiliary switch block?
The ambient temperature range for operation is from -25 to +60 degrees Celsius.
What is the mechanical service life of the auxiliary switch block?
The mechanical service life of the auxiliary switch block is typically 10 million switching cycles.
What is the electrical endurance of the auxiliary switch block?
The electrical endurance at AC-15 at 230 V is typically 200,000 switching cycles.
What type of terminals does the auxiliary switch block have?
The auxiliary switch block is equipped with screw-type terminals.
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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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
