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 weeks ago
8US1921-2AC01
Siemens 8US1921-2AC01 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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3. Your quote
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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 8US1921-2AC01 is a SENTRON connecting terminal designed for use with busbar systems and associated accessories. Suitable for busbar centre-to-centre spacing of 40 mm and 60 mm, it supports bar thicknesses of 5 mm and is compatible with busbars measuring 12, 15, 20, 25 and 30 x 5 mm, as well as mounting rails.
Built for low-voltage distribution applications, this terminal is rated for an operating voltage of 690 V AC and has a UL 508 rated operational current of 255 A. It accepts stranded copper conductors from 16 to 120 mm², with AWG compatibility from AWG 4 to MCM 250, making it suitable for robust electrical panel and power distribution assemblies.
With a compact net weight of approximately 100 g and zero stated power loss, the 8US1921-2AC01 provides a practical connection solution within Siemens SENTRON busbar installations where reliable conductor termination and compatibility with standard busbar profiles are required.
Built for low-voltage distribution applications, this terminal is rated for an operating voltage of 690 V AC and has a UL 508 rated operational current of 255 A. It accepts stranded copper conductors from 16 to 120 mm², with AWG compatibility from AWG 4 to MCM 250, making it suitable for robust electrical panel and power distribution assemblies.
With a compact net weight of approximately 100 g and zero stated power loss, the 8US1921-2AC01 provides a practical connection solution within Siemens SENTRON busbar installations where reliable conductor termination and compatibility with standard busbar profiles are required.
What type of component is this?
It is a SENTRON busbar system accessory used as a connecting terminal for making electrical connections to compatible busbars and mounting rails.
What busbar centre-to-centre spacing is it designed for?
This connecting terminal is intended for busbar systems with 40 mm or 60 mm centre-to-centre spacing.
What busbar thickness does it suit?
The terminal is designed for 5 mm thick busbars.
Which busbar sizes are compatible?
It is suitable for busbars measuring 12 x 5 mm, 15 x 5 mm, 20 x 5 mm, 25 x 5 mm and 30 x 5 mm, as well as suitable mounting rails.
What conductor cross-section range can it accept?
For stranded copper conductors, it accepts conductor cross-sections from 16 mm² to 120 mm².
What AWG conductor range is listed for this terminal?
The listed AWG connection range is AWG 4 to MCM 250.
What is the rated operating voltage?
The rated AC operating voltage is 690 V.
What current rating is specified under UL 508?
The operational current rating according to UL 508 is 255 A.
Does the component have any stated power loss?
The stated power loss is 0 W, as it is a passive connecting terminal within the busbar system.
What is its approximate net weight?
The approximate net weight is 100 g.
Where is this type of terminal typically used?
It is typically used in low-voltage distribution assemblies, control panels and busbar arrangements where a secure connection point is needed for larger conductors.
What should be checked before selecting this terminal?
Before selection, check the busbar spacing, bar dimensions, conductor size, conductor type and required electrical ratings to confirm that 8US1921-2AC01 is suitable for the intended panel arrangement.
- Connecting incoming or outgoing conductors to 40 mm and 60 mm busbar systems
- Terminating stranded copper conductors in low-voltage electrical distribution assemblies
- Use with busbars measuring 12, 15, 20, 25 or 30 mm by 5 mm in panel installations
- Integrating SENTRON busbar accessories into industrial control cabinets
- Supporting power distribution layouts rated up to 690 V AC
- Connecting larger cross-section conductors from 16 mm² to 120 mm²
- Providing a secure terminal point for mounting rail and busbar arrangements
- Use in switchgear, control panels and electrical enclosures requiring busbar connection accessories
- Retrofitting or expanding existing Siemens busbar-based distribution systems
- Supporting machine building, plant engineering and commercial electrical infrastructure applications
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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