steve
Got hold of Sime for a Carrier card for…
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 months ago
3RH1921-1FA22
Siemens 3RH1921-1FA22 available at EU Automation. Get in touch today for a quick price.
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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 3RH1921-1FA22 is a 4-pole mounting block designed for use with contactor relays and power contactors in industrial automation applications. This attachable block features 2 Normally Open (NO) and 2 Normally Closed (NC) auxiliary contacts, providing reliable switching performance for control and signaling circuits. With an IP20 protection rating on the front, the 3RH1921-1FA22 ensures safe operation in various environments. The mounting block is designed for snap-on mounting, making installation quick and easy. It has a mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V. The 3RH1921-1FA22 is compatible with a wide range of conductor cross-sections and features screw-type terminals for secure connections. Enhance the functionality of your contactor relays and power contactors with the Siemens 3RH1921-1FA22 mounting block.
| Specification | Description |
|---|---|
| Part Number | 3RH1921-1FA22 |
| Alternative Part Number | 3RH19211FA22 |
| Manufacturer | Siemens |
| Protection Class IP (Front) | IP20 |
| Ambient Temperature (Storage) | -55°C to +80°C |
| Ambient Temperature (Operation) | -25°C to +60°C |
| Mechanical Service Life | 10,000,000 switching cycles (typical) |
| Electrical Endurance | 200,000 switching cycles at AC-15 at 230 V (typical) |
| Insulation Voltage | 690 V (rated value, degree of pollution 3) |
| Surge Voltage Resistance | 6 kV (rated value) |
| Mounting Type | Snap-on mounting |
| Dimensions (W x H x D) | 44 mm x 38 mm x 51 mm |
| Electrical Connection | Screw-type terminals |
| Connectable Conductor Cross-Section | 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) (finely stranded with core end processing) |
| AWG Conductors | 2x (20 ... 16), 2x (18 ... 14) |
| Mirror Contact | Yes (with 3RT1) |
| Positively Driven Operation | No |
What is the protection class IP on the front of this Siemens attachable block?
The protection class IP on the front of the Siemens 3RH1921-1FA22 attachable block is IP20.
What is the ambient temperature range for storage and operation of this part?
The ambient temperature range for storage of the Siemens 3RH1921-1FA22 is -55°C to +80°C, and for operation, it is -25°C to +60°C.
What is the mechanical service life and electrical endurance of this attachable block?
The typical mechanical service life of the Siemens 3RH1921-1FA22 is 10,000,000 switching cycles, and its electrical endurance at AC-15 at 230 V is typically 200,000 switching cycles.
How many NC and NO contacts does this attachable block have for auxiliary contacts?
The Siemens 3RH1921-1FA22 has 2 NC (normally closed) contacts and 2 NO (normally open) contacts for auxiliary contacts.
What is the insulation voltage and surge voltage resistance of this part?
The insulation voltage of the Siemens 3RH1921-1FA22 with a degree of pollution 3 is 690 V, and its surge voltage resistance is 6 kV.
What type of mounting does this attachable block use?
The Siemens 3RH1921-1FA22 attachable block uses snap-on mounting.
What are the dimensions of this part?
The dimensions of the Siemens 3RH1921-1FA22 attachable block are 44 mm in width, 38 mm in height, and 51 mm in depth.
What type of electrical connection does this attachable block have for auxiliary and control current circuits?
The Siemens 3RH1921-1FA22 attachable block has screw-type terminals for electrical connections in auxiliary and control current circuits.
Does this part have a mirror contact function according to IEC 60947-4-1?
Yes, the Siemens 3RH1921-1FA22 attachable block has a mirror contact function according to IEC 60947-4-1.
- Industrial control systems
- Motor control centers
- Automation panels
- Conveyor systems
- Pump control systems
- HVAC control panels
- Packaging machinery
- Material handling equipment
- Elevator and escalator controls
- Machine tool control panels
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
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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.
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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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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!
5 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.
5 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!
6 months ago
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