"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"
3NP1123-1BC20 Siemens
Based on over 4900 reviews
Adding another part to your enquiry?
After submitting this form, you can add additional part numbers and quantities using the quote builder on the next page. A member of our team will then be in touch to discuss your quote.
Key specifications
Manufacturer
Siemens
HS code
85362090
Ship to
Philippines
Availability
235 remaining
Express delivery to your country
Full 12-month warranty
Secure payment process
What happens next?
From enquiry to delivery, we keep it simple.
Submit your enquiry
Tell us what you need using the form above and we'll manage your procurement needs with speed and care.
Confirmation and sourcing
An account manager will contact you within a few hours and use our unique parts database to find your components at a competitive price.
Receive your quote
Your account manager will provide a tailored quote outlining availability and delivery dates.
Place your order
Your order ships quickly from one of our global logistics hubs, with updates provided every step of the way.
The Siemens 3NP1123-1BC20 is a robust and reliable fuse switch disconnector designed to enhance operational efficiency and safety in industrial power management. This three-pole device is compatible with NH000 size fuse links and is specifically engineered for seamless integration with the 8US busbar system measuring 60 mm. It features a box terminal connection and is crafted to accommodate busbar thicknesses of 5 or 10 mm, offering flexibility for various installation requirements. With a cover level of 32/70 mm, the 3NP1123-1BC20 ensures a secure and protected environment for electrical components. The unit is built to withstand an operational current of up to 160 A at 35 °C, demonstrating its capacity to handle significant electrical loads. The disconnector is also designed to endure a mechanical service life of approximately 2,000 typical switching cycles, highlighting its durability and long-term reliability. The device boasts an insulation voltage rated at 690 V, with a surge voltage resistance of 8 kV, ensuring it can perform safely under challenging electrical conditions. It also offers a degree of pollution classification of 3, indicating its capability to operate effectively even in environments with a certain level of contaminants. For safety and compliance, the 3NP1123-1BC20 is designed with a protection class of IP40 when the switch is closed with a cover or cable lug cover, and IP30 without. This level of protection ensures that the device is safeguarded against ingress of solid objects and provides a degree of touch protection. The Siemens 3NP1123-1BC20 is a testament to Siemens' commitment to quality, safety, and efficiency in electrical power distribution. Its design and construction make it an essential component for industrial settings requiring reliable and secure power management solutions.
Typical applications
- Protection and isolation of electrical circuits in industrial installations
- Switching and disconnection of motors in commercial and manufacturing environments
- Use as a main switch for machinery and control panels
- Integration into busbar systems for centralised power distribution
- Maintenance and repair operations, allowing safe isolation of circuit parts
- Safety disconnection in case of emergency or during servicing
- Use in environments requiring a high degree of pollution protection
- Installation in control cabinets for easy access and operation
- Fuse switch disconnection for capacitor banks in power factor correction systems
- Utilisation in low-voltage power distribution applications requiring high short-circuit current rating
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! "
Related parts
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.