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3RH1921-1DA11
Siemens 3RH1921-1DA11 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 3RH1921-1DA11 is a highly reliable auxiliary switch block designed to enhance the functionality of your motor contactors. This first lateral auxiliary switch features 1 Normally Open (NO) and 1 Normally Closed (NC) contact, providing versatility in various industrial applications. With a screw terminal connection and a compact size that fits S0 to S12 contactors, it ensures easy installation and minimal space usage. The switch block operates efficiently in a temperature range of -25°C to +60°C, making it suitable for challenging environments. It boasts an impressive mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 cycles at AC-15 at 230V. The 3RH1921-1DA11 is part of the renowned Siemens SIRIUS product line, known for its high-quality and durable industrial control components.
| Specification | Description |
|---|---|
| Part Number | 3RH1921-1DA11 |
| Alternative Part Number | 3RH19211DA11 |
| Manufacturer | Siemens |
| Description | This is a Siemens Auxiliary Switch Block with 1NO/1NC configuration. It operates at a voltage of 440V. |
| Short Description | First Lateral Auxiliary Switch |
| Country of Origin | Not specified |
| Commodity Code | 85365080 |
| Suitability for Use | Contactor relay and power contactor |
| Protection Class IP on the Front | IP20 |
| Ambient Temperature During Storage | -55 to +80 °C |
| Ambient Temperature During Operation | -25 to +60 °C |
| Mechanical Service Life (Switching Cycles) Typical | 10,000,000 |
| Electrical Endurance (Switching Cycles) at AC-15 at 230 V Typical | 200,000 |
| Insulation Voltage with Degree of Pollution 3 Rated Value | 500 V |
| Surge Voltage Resistance Rated Value | 6 kV |
| Mounting Type | Snap-on mounting |
| Width | 10 mm |
| Height | 80 mm |
| Depth | 71 mm |
| Type of Electrical Connection for Auxiliary and Control Current Circuit | Screw-type terminals |
| Product Function Mirror Contact acc. to IEC 60947-4-1 | Yes |
| Product Function Positively Driven Operation acc. to IEC 60947-5-1 | No |
What is the function of this auxiliary switch block?
The Siemens 3RH1921-1DA11 is an auxiliary switch block that is used to control the operation of contactors. It has 1 Normally Open (NO) and 1 Normally Closed (NC) contact.
What are the technical specifications of this part?
This auxiliary switch block operates at a voltage of 440V. It has an insulation voltage of 500V with a degree of pollution 3 and a surge voltage resistance of 6kV. It is suitable for use with contactor relays and power contactors.
What is the operating temperature range for this part?
The Siemens 3RH1921-1DA11 can operate between -25°C to +60°C. It can be stored in temperatures ranging from -55°C to +80°C.
What is the mechanical service life of this part?
The mechanical service life of the Siemens 3RH1921-1DA11 is typically 10 million switching cycles.
What type of connection does this part use?
The Siemens 3RH1921-1DA11 uses a screw-type terminal for its auxiliary and control current circuit.
What is the protection class of this part?
The Siemens 3RH1921-1DA11 has a protection class IP20 on the front.
What is the size of this part?
The Siemens 3RH1921-1DA11 has a width of 10mm, a height of 80mm, and a depth of 71mm.
What is the contact reliability of this part?
The Siemens 3RH1921-1DA11 has a contact reliability of one incorrect switching operation of 100 million switching operations (17 V, 5 mA).
- Utilized in motor contactors for auxiliary switching
- Employed in industrial automation systems for control and regulation tasks
- Used in manufacturing plants for machinery operation
- Integrated into electrical circuits for safety and control purposes
- Implemented in power distribution systems for auxiliary control
- Used in HVAC systems for auxiliary switching
- Incorporated in conveyor systems for control and regulation tasks
- Utilized in pump control systems for auxiliary control
- Employed in lighting control systems for auxiliary switching
- Used in control panels for auxiliary control and safety purposes.
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
Jerry Schrink
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!
2 months ago
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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