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
1 month ago
3NW7431-7HG
Siemens 3NW7431-7HG 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 3NW7431-7HG is a SENTRON Class J fuse holder designed for installation on an 8US 60 mm busbar system. This three-pole unit has a rated operational current of 200 A and supports operating voltages up to 600 V AC. Its IP20 enclosure provides protection against contact with larger solid objects. Measuring 210 mm high, 184 mm wide and 129 mm deep, the fuse holder weighs approximately 2.78 kg and is suitable for use in industrial power distribution and circuit protection assemblies.
| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3NW7431-7HG |
| Alternative Part Number | 3NW74317HG |
| Product Range | SENTRON |
| Product Type | Fuse holder |
| Fuse Class | Class J |
| Number of Poles | 3-pole |
| Rated Operational Current | 200 A AC |
| Rated Operational Voltage | 600 V AC |
| Busbar Compatibility | Siemens 8US busbar system |
| Busbar Spacing | 60 mm |
| Degree of Protection | IP20 |
| Height | 210 mm |
| Width | 184 mm |
| Depth | 129 mm |
| Net Weight | 2.78 kg |
| Reference Designation | F, according to IEC 81346-2 |
| Description | Three-pole SENTRON Class J fuse holder designed for mounting on a Siemens 8US 60 mm busbar system, with ratings of 200 A and 600 V AC. |
What type of component is this?
The Siemens 3NW7431-7HG is a SENTRON Class J fuse holder designed for use with a 60 mm 8US busbar system.
How many poles does the fuse holder have?
It has a three-pole configuration, allowing it to accommodate fuse protection across three electrical phases.
Which fuse link class is compatible with this unit?
This fuse holder is designed for Class J fuse links. The selected fuse links must also meet the electrical requirements of the intended application.
What is the rated operational current?
The rated operational current is 200 A AC.
What is the rated operating voltage?
The unit is rated for operation at up to 600 V AC.
Which busbar system is this fuse holder designed for?
It is intended for installation on a Siemens 8US busbar system with 60 mm busbar spacing.
What is the enclosure protection rating?
The fuse holder has an IP20 protection rating, meaning it provides protection against contact with fingers and similarly sized solid objects but does not provide protection against water.
What are the dimensions of the fuse holder?
The component measures approximately 210 mm in height, 184 mm in width and 129 mm in depth.
How much does the component weigh?
The net weight is approximately 2.78 kg.
What applications is this fuse holder commonly used in?
It is typically used for three-phase circuit protection within industrial distribution boards, control panels and other electrical assemblies built around a 60 mm 8US busbar system.
What should be checked before selecting this component?
Confirm the required number of poles, Class J fuse format, 200 A current rating, 600 V AC voltage rating, panel dimensions and compatibility with the 60 mm 8US busbar arrangement.
Are fuse links included with the holder?
The component is identified as a fuse holder, so the required Class J fuse links should be specified separately unless they are explicitly listed as included with the supplied unit.
What does the IEC reference designation mean?
The reference code according to IEC 81346-2 is F, which is the functional designation commonly associated with protective devices such as fuses.
Does installation need to follow local electrical regulations?
Yes. Installation and fuse selection should comply with the applicable national electrical regulations and the requirements of the completed panel or distribution assembly.
- Protecting three-phase electrical circuits against overcurrent and short circuits
- Housing Class J fuse links in industrial power distribution systems
- Mounting circuit protection directly onto Siemens 8US 60 mm busbar systems
- Safeguarding machinery power supplies rated up to 200 A and 600 V AC
- Isolating individual feeders within industrial control panels and switchboards
- Providing fused protection for motors, drives and other high-current electrical loads
- Supporting compact power distribution assemblies in manufacturing facilities
- Protecting branch circuits in automation cabinets and industrial enclosures
- Integrating three-pole fuse protection into equipment distribution panels
- Supporting electrical distribution for production lines and process machinery
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.
3 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!
3 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!
3 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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