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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1911-1AA10 |
| Alternative Part Number | 3RH19111AA10 |
| Manufacturer | Siemens |
| Series | 3RH1 |
| Type | Auxiliary Switch Block |
| Application | For Auxiliary and Motor Contactor |
| Voltage Rating | 690 V ac |
| Current Rating | 10 A |
| Number of Contacts | 1 Normally Open (NO) |
| Connection Type | Screw Connection |
| Mounting Type | Snap-on Mounting |
| Operating Temperature Range | -25 … +60 °C |
| Storage Temperature Range | -55 … +80 °C |
| Mechanical Operating Cycles | Typically 10,000,000 |
| Electrical Operating Cycles | Typically 200,000 at AC-15 / at 230 V |
| Contact Reliability | One incorrect switching operation of 100 million switching operations (17 V, 5 mA) |
| Insulation Voltage | Rated at 690 V with degree of pollution 3 |
| Impulse Voltage Resistance | Rated at 6 kV |
| Protection Class | IP20 |
| Dimensions (W x H x D) | 28.5 mm x 37.5 mm x 41.5 mm |
| Terminal Design | Screw-type terminals for auxiliary and control current circuit |
| Conductor Cross-section | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) for auxiliary contacts |
| AWG Conductors | 2x (20 ... 16), 2x (18 ... 14) for auxiliary contacts |
| Safety Features | Mirror contact to IEC 60947-4-1, Positively driven operation to IEC 60947-5-1 with 3RH1 relays |
| Approvals | General Product Approval, Functional Safety / Safety of Machinery, Declaration of Conformity |
The Siemens 3RH1911-1AA10 is a high-quality auxiliary switch block designed to complement both auxiliary and motor contactors. This component is part of the esteemed 3RH1 series and is engineered to facilitate efficient and reliable operations within a wide range of industrial applications. With a robust insulation voltage rated at 690 V ac and an operational current capacity of 10 A, this switch block is built to handle demanding electrical loads with ease.
Measuring a compact 23.6 x 27 x 28 mm, the 3RH1911-1AA10 is designed for space-saving installation and is equipped with a convenient snap-on mounting feature that allows for quick and secure attachment to contactor relays. The switch block's screw connection terminals provide a secure and durable connection point for auxiliary and control current circuits, ensuring a stable and long-lasting electrical interface.
The auxiliary switch block is rated for an impressive 10 million mechanical operating cycles, highlighting its durability and the quality of its construction. It also boasts a high level of contact reliability, with a very low chance of incorrect switching operations, ensuring consistent performance and peace of mind in your electrical systems.
This Siemens auxiliary switch block is suitable for a variety of industrial environments, with an operating temperature range of -25 to +60 degrees Celsius, ensuring reliable operation even in challenging conditions. Its IP20 protection class rating on the front provides a basic level of protection against solid objects, making it suitable for use in controlled environments.
The 3RH1911-1AA10 is a testament to Siemens' commitment to quality, reliability, and innovation in the field of industrial electrical components. It is an essential part of any system where auxiliary and motor contactor functionality is required, providing the performance and reliability that professionals expect from a leading brand like Siemens.
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Frequently Asked Questions
What is the voltage rating for this auxiliary switch block?
The auxiliary switch block is rated for a voltage of up to 690 V ac.
Can you specify the operating current for this component?
The operating current for the auxiliary contacts is rated at 10 A for AC-12 at 24 V and 230 V, and it varies for other specific use cases as detailed in the technical specifications.
What are the dimensions of this auxiliary switch block?
The dimensions of the auxiliary switch block are 23.6 mm in width, 27 mm in height, and 28 mm in depth.
What type of connections does this switch block support?
This switch block supports screw-type connections for auxiliary and control current circuits.
How many mechanical operating cycles can this switch block withstand?
The switch block is designed to withstand typically 10 million mechanical operating cycles.
What is the ambient temperature range for operating this switch block?
The switch block can operate within an ambient temperature range of -25 to +60 degrees Celsius.
Is there a specific mounting type for this switch block?
Yes, the switch block is designed for snap-on mounting.
Does this switch block have a mirror contact feature?
Yes, the switch block includes a mirror contact feature in accordance with IEC 60947-4-1 when used with 3RT1 contactors.
What is the insulation voltage for this auxiliary switch block?
The insulation voltage, with a degree of pollution 3, is rated at 690 V.
What is the impulse voltage resistance of this component?
The impulse voltage resistance of the auxiliary switch block is rated at 6 kV.
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