"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"
3RH1921-1CD01
Siemens 3RH1921-1CD01 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
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.
All orders are subject to product availability. See our T&Cs.
Ask our team
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 3RH1921-1CD01 is a high-quality auxiliary switch block designed to enhance the functionality of motor contactors. This component is part of the esteemed SIRIUS product line, known for its reliability and versatility in various industrial applications. The switch block features a single normally closed (NC) contact, configured according to the DIN EN50005 standard, and is equipped with a screw connection for secure and straightforward installation. Engineered to operate within a broad ambient temperature range, the 3RH1921-1CD01 can withstand conditions from -25°C to +60°C during operation, ensuring consistent performance even in demanding environments. Its mechanical service life is impressive, with up to 10 million operating cycles, and it offers an electrical endurance of 200,000 cycles at AC-15 at 230V, highlighting its durability and long-term reliability. The auxiliary switch block boasts an insulation voltage rated at 690V with a degree of pollution 3, and a surge voltage resistance of 6kV, providing robust protection against electrical disturbances. The compact design, featuring snap-on mounting, allows for easy integration into existing setups, with dimensions of 10mm in width, 38mm in height, and 51mm in depth. This component is particularly suitable for use with contactor relays and power contactors, enhancing their switching capabilities and contributing to the overall safety and efficiency of the electrical control system. The 3RH1921-1CD01 is a testament to Siemens' commitment to quality and innovation, offering a dependable solution for industrial control applications.
Typical applications
- Integration into motor control circuits for auxiliary switching functions
- Use in contactor relays for additional switching tasks
- Implementation in control panels for industrial machinery
- Deployment in automation systems for signalling purposes
- Utilisation in conveyor systems for start/stop operations
- Inclusion in HVAC systems for controlling various stages
- Application in packaging equipment for precision operations
- Installation in manufacturing lines for process control
- Incorporation in electrical distribution systems for auxiliary contacts
- Employment in material handling systems for auxiliary operations
Need more information?
Our global network and dedicated team act fast to keep your supply chain moving.
Contact usCan't find what you're looking for?
Find answers, guidance and resources to help you get the most out of our services.
Support centreOrder and delivery information
Need more information?
Our global network and dedicated team act fast to keep your supply chain moving.
Contact usCan't find what you're looking for?
Find answers, guidance and resources to help you get the most out of our services.
Support centreSupporting new and legacy automation
Whether you're maintaining existing equipment or sourcing parts for current systems, we provide fast, dependable supply you can rely on.
50+ account managers available now
What our customers say
"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."
"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!"
"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!"
"Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping. "
"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! "
FAQs
Your parts delivered, hassle free
We take care of the logistics so you don't have to. From customs documentation to real-time tracking, our service ensures your parts arrive on time, every time. Reliable, straightforward delivery you can trust.
Full 12-month warranty
ISO 9001:2015 certified
Swift global delivery
"The prompt delivery knowing it was urgent was amazing! We are confident when EU Automation says they will try to ship as soon as possible they really mean it. Our company will definitely use them again. Service is astounding."
Courtney Zeinert
Facilities Manager
Speak to our team
Whether you need advice or help finding the right part, our team is available to assist and keep your operations running smoothly.