Siemens 3RH2911-1HA11 is an auxiliary contact block used in conjunction with contactors and relays to extend the number of auxiliary contacts available. Below are the detailed features and specifications of this auxiliary contact block:
Key Features:
- Auxiliary Contact Block:
- Type: Auxiliary contact block designed for attachment to Siemens contactors and relays.
- Configuration: 1 Normally Open (NO) + 1 Normally Closed (NC) contact.
- Compatibility:
- Compatible with Siemens Contactors: Specifically designed to fit Siemens 3RT and 3RH series contactors and relays.
- Easy Attachment: Can be easily mounted onto the front or side of the main contactor or relay.
- High Performance:
- Reliable Operation: Ensures reliable electrical performance, suitable for various industrial applications.
- Electrical Ratings: Capable of handling standard control circuit voltages and currents.
- Compact Design:
- Space-Saving: Compact design allows for efficient use of space within control panels and enclosures.
- DIN Rail Mounting: Can be mounted on standard DIN rails for ease of installation.
Technical Specifications:
- Manufacturer: Siemens
- Model Number: 3RH2911-1HA11
- Type: Auxiliary Contact Block
- Contact Configuration:
- Contacts: 1 NO + 1 NC
- Contact Rating:
- AC-15 (Control of electromagnetic loads): Rated operational current up to 6 A at 230 V AC
- DC-13 (Control of electromagnets): Rated operational current up to 3 A at 24 V DC
- Electrical Characteristics:
- Rated Insulation Voltage (Ui): 690 V
- Rated Impulse Withstand Voltage (Uimp): 6 kV
- Mechanical Characteristics:
- Mechanical Durability: High durability with a mechanical lifespan of millions of operations.
- Operating Temperature Range: Suitable for standard industrial environments, typically -25°C to +55°C.
- Installation and Mounting:
- Mounting: Snap-on mounting onto the front or side of Siemens contactors or relays.
- Mounting Position: Flexible mounting positions to accommodate different control panel designs.
- Dimensions and Weight:
- Compact Size: Designed to occupy minimal space.
- Weight: Lightweight for easy handling and installation.
Applications:
- Industrial Control Panels:
- Used to provide additional auxiliary contacts in motor control centers, automation systems, and other industrial control panels.
- Machine Control:
- Enhances the functionality of contactors in machine control applications by providing extra contacts for signaling and interlocking purposes.
- Building Automation:
- Utilized in building automation systems to extend the control capabilities of contactors and relays.
- Process Control:
- Suitable for process control systems where additional contact points are needed for control and feedback purposes.
Benefits:
- Flexibility: Offers flexibility in control circuit design by providing extra contacts.
- Ease of Installation: Simple and quick to install without requiring additional tools or complex procedures.
- Reliability: Provides reliable performance in industrial environments, ensuring consistent operation of control circuits.
- Durability: Designed for long service life, reducing maintenance needs and operational costs.
The Siemens 3RH2911-1HA11 auxiliary contact block is a practical solution for expanding the contact configuration of Siemens contactors and relays, offering reliable and durable performance for a wide range of industrial and automation applications.
