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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1921-1CA01 |
| Alternative Part Number | 3RH19211CA01 |
| Manufacturer | Siemens |
| Voltage Rating | 690 V ac, 600 V dc |
| Contact Configuration | 1NC (Normally Closed) |
| Mounting Style | Snap-On |
| Location of Operation | Front-side |
| Commodity Code | 85365080 |
| Country of Origin | Not specified |
| Description | The Siemens 3RH1921-1CA01 is a front-side auxiliary switch block designed for reliable and efficient operation in various industrial applications. It features a snap-on mounting style for easy installation and a normally closed contact configuration. The switch block can handle voltage ratings of up to 690 V ac and 600 V dc, making it suitable for a wide range of electrical systems. Please note that the country of origin for this part is not specified. |
The Siemens 3RH1921-1CA01 is a robust and reliable auxiliary switch block designed to enhance the functionality of your industrial control systems. This front-side auxiliary switch, with its 1 NC (Normally Closed) contact, is specifically engineered for use with contactors for switching motors. It features a snap-on mounting type and screw-type terminals for auxiliary and control current circuits, ensuring easy installation and secure connections.
With an insulation voltage of 690 V at AC and a surge voltage resistance of 6 kV, this auxiliary switch block is built to withstand demanding industrial environments. It operates efficiently within a temperature range of -25 to +60 °C, making it suitable for a wide range of applications.
The Siemens 3RH1921-1CA01 auxiliary switch block is part of the renowned SIRIUS product line, known for its high-quality and performance. It offers a mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230 V, ensuring long-lasting durability and reliability.
Whether you're upgrading your existing system or building a new one, the Siemens 3RH1921-1CA01 auxiliary switch block is a solid choice for enhancing control and safety in your industrial applications.
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Frequently Asked Questions
What is the voltage rating of this Siemens Auxiliary Switch Block?
The Siemens Auxiliary Switch Block is rated for 690 V ac and 600 V dc.
How many NC contacts does this Auxiliary Switch Block have?
This Auxiliary Switch Block has 1 NC (Normally Closed) contact.
What type of connection does this Auxiliary Switch Block use?
This Auxiliary Switch Block uses a screw-type terminal for auxiliary and control current circuit.
What is the operating current of the auxiliary contacts at AC-15?
The operating current of the auxiliary contacts at AC-15 is 6 A.
What type of mounting does this Auxiliary Switch Block use?
This Auxiliary Switch Block uses snap-on mounting.
What is the purpose of this Auxiliary Switch Block?
The Siemens Auxiliary Switch Block, 3RH1921-1CA01, is used for contactors for switching motors. It provides an additional switching function.
