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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 weeks ago
3RH1921-1CA10
Siemens 3RH1921-1CA10 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RH1921-1CA10 is a high-quality auxiliary switch block designed for optimal performance in industrial settings. This front-side auxiliary switch features a single normally open (NO) contact and is designed for snap-on mounting, ensuring easy installation. With a protection class IP20, it offers a degree of protection against touch by fingers and objects not greater than 12mm.
This Siemens auxiliary switch block is suitable for use with contactor relays and power contactors, making it a versatile addition to your automation system. It boasts an impressive mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V.
The 3RH1921-1CA10 operates efficiently within an ambient temperature range of -25 to +60 degrees Celsius during operation and -55 to +80 degrees Celsius during storage. It also features screw-type terminals for auxiliary and control current circuits, accommodating a wide range of conductor cross-sections.
This Siemens auxiliary switch block is a reliable and durable choice for your industrial automation needs, offering consistent performance and longevity.
This Siemens auxiliary switch block is suitable for use with contactor relays and power contactors, making it a versatile addition to your automation system. It boasts an impressive mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V.
The 3RH1921-1CA10 operates efficiently within an ambient temperature range of -25 to +60 degrees Celsius during operation and -55 to +80 degrees Celsius during storage. It also features screw-type terminals for auxiliary and control current circuits, accommodating a wide range of conductor cross-sections.
This Siemens auxiliary switch block is a reliable and durable choice for your industrial automation needs, offering consistent performance and longevity.
| Specification | Description |
|---|---|
| Part Number | 3RH1921-1CA10 |
| Alternative Part Number | 3RH19211CA10 |
| Manufacturer | Siemens |
| Voltage Rating | 690 V ac, 600 V dc |
| Contact Configuration | 1NO |
| Mounting Style | Snap-On |
| Width | 10 mm |
| Height | 38 mm |
| Depth | 51 mm |
| Connection Type | Screw-type terminals |
| Conductor Cross-Section | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) |
| Product Function | Mirror contact to IEC 60947-4-1 |
| Commodity Code | 85365080 |
| Country of Origin | Not specified |
| Short Description | Front-side auxiliary switch, 1 NC contact |
| Detailed Description | The Siemens 3RH1921-1CA10 is a front-side auxiliary switch with a snap-on mounting style. It has a voltage rating of 690 V ac and 600 V dc and a contact configuration of 1NO. The switch is designed with screw-type terminals for auxiliary and control current circuit, and it can accommodate a conductor cross-section of 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²). The product function includes a mirror contact to IEC 60947-4-1. The part dimensions are 10 mm in width, 38 mm in height, and 51 mm in depth. |
What is the main function of this auxiliary switch block?
The Siemens 3RH1921-1CA10 is an auxiliary switch block primarily used for switching motors. It's designed to provide additional control and safety functions when used with contactors.
What are the technical specifications of this part?
This auxiliary switch block operates with an insulation voltage of 690V at AC and a surge voltage resistance of 6kV. It has a mechanical service life of approximately 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V.
What type of connection does this part use?
The Siemens 3RH1921-1CA10 uses a screw-type terminal for its auxiliary and control current circuit.
What is the operating temperature range for this part?
This part can operate effectively in temperatures ranging from -25°C to +60°C. It can be stored in temperatures between -55°C and +80°C.
What is the protection class of this part?
The Siemens 3RH1921-1CA10 has a protection class IP20 on the front, providing a certain level of protection against solid objects and no protection against liquids.
What is the contact reliability of this part?
The contact reliability of the Siemens 3RH1921-1CA10 is quite high, with only one faulty switching operation per 100 million operations at 17V, 1mA.
What is the size of this part?
The Siemens 3RH1921-1CA10 has a width of 10mm, a height of 38mm, and a depth of 51mm.
What type of mounting does this part use?
This part uses snap-on mounting, making it easy to install and remove as needed.
- Control and automation of industrial machinery
- Integration into motor control systems
- Use in electrical circuitry for switching motors
- Part of safety systems in industrial settings
- Component in manufacturing equipment control panels
- Utilized in power distribution systems
- Essential for electrical installations in commercial buildings
- Key component in HVAC systems for switching and control
- Used in automation systems for process control
- Integral part of control systems in renewable energy installations
- Component in control circuits of conveyor systems
- Used in control panels of pumping systems
- Essential for the operation of packaging machinery
- Part of control systems in food and beverage industry equipment
- Used in the automation of material handling systems.
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
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Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
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Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
2 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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