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Siemens 3NW4112-1HG Class J Fast-acting Fuse
I. Product Overview
The Siemens 3NW4112-1HG is a Class J fast-acting fuse link from Siemens, with a rated current of 30A and rated voltage of 600V AC. This fuse features a quick-response (fast-acting) characteristic, capable of blowing rapidly in the event of overload or short-circuit, effectively protecting downstream electrical equipment and wiring from damage.
The product complies with UL Class J standards, with an interrupting rating of up to 200kA RMS symmetrical, suitable for industrial power distribution systems with high short-circuit capacity. The fuse adopts a cylindrical fuse link structure, used with Class J fuse holders for convenient installation and replacement. The product is UL and CSA certified, widely used in industrial power distribution, motor control centers, semiconductor manufacturing equipment, data centers, renewable energy systems, and more.
II. Specifications
表格
| Parameter | Value |
|---|---|
| Brand | Siemens |
| Model | 3NW4112-1HG |
| Product Type | Class J Fast-acting Fuse Link |
| Fuse Rating | Class J (UL Standard) |
| Rated Current | 30A |
| Rated Voltage (AC) | 600V AC |
| Rated Voltage (DC) | 300V DC |
| Fuse Characteristic | Quick-response (fast-acting) |
| Interrupting Rating | 200kA RMS symmetrical (AC) |
| Operating Frequency | 45-62Hz |
| Construction | Cylindrical fuse link |
| Mounting | For use with Class J fuse holders |
| Applicable Standards | UL 248-8, IEC 60269 |
| Approvals | UL, CSA |
| Packaging | 10 pieces per box |
| Operating Temperature Range | Contact via email for confirmation |
| Power Loss | Contact via email for confirmation |
| Dimensions | Contact via email for confirmation |
| Weight | Contact via email for confirmation |
| Country of Origin | Contact via email for confirmation |
III. Product Features
- UL Class J rating with 200kA interrupting capacity for high short-circuit power distribution systems
- Quick-response characteristic, blows rapidly during short-circuit to effectively protect downstream equipment
- 30A rated current, 600V AC/300V DC rated voltage for wide application range
- Cylindrical fuse link structure for use with standard Class J fuse holders, easy installation and replacement
- UL and CSA certified, complying with North American electrical safety standards
- High Rupturing Capacity (HRC) design for stable and reliable performance
- Suitable for industrial power distribution, motor control, semiconductor equipment and various application scenarios
- Siemens quality with quality assurance and long service life
IV. Typical Applications
- Industrial power distribution system overload and short-circuit protection
- Motor Control Center (MCC) feeder protection
- Semiconductor manufacturing equipment circuit protection
- Data center power distribution system protection
- Renewable energy systems (PV, wind) power distribution protection
- Input protection for power electronic equipment such as VFDs and servo drives
- Transformer secondary side outgoing protection
- HVAC equipment circuit protection
- Commercial building power distribution system protection
- Medical equipment power distribution protection
V. Model Description
3NW4112-1HG is the complete ordering model for the Siemens Class J fuse. Where:
- 3NW: Siemens low-voltage fuse series
- 4: Class J fuse specification
- 112: Rated current 30A
- 1: Quick-response characteristic (fast-acting), suffix 2 indicates time-lag characteristic
- HG: Configuration/mounting code
For details on the meaning of each component of this model and other current ratings in the series, please contact via email for confirmation. We will provide detailed selection manuals and technical support.
VI. Why Choose Us
- Professional channel supply, comprehensive model coverage across multiple brands of industrial spare parts
- Strict quality inspection process ensuring reliable product quality
- Professional engineering team providing technical support and selection consultation
- Quick response, efficient logistics, orders accepted
- Quality assurance, worry-free after-sales service
VII. FAQ
Q1: What are the rated current and voltage of the 3NW4112-1HG?
A: This fuse has a rated current of 30A, rated voltage of 600V AC, and DC rated voltage of 300V DC.
Q2: Is this fuse fast-acting or time-delay?
A: The 3NW4112-1HG is a quick-response (fast-acting) fuse. The time-delay version in the same series is model 3NW4112-2HG.
Q3: What is the interrupting rating of Class J fuses?
A: Class J fuses have an interrupting rating of 200kA RMS symmetrical (AC), suitable for industrial power distribution systems with high short-circuit capacity.
Q4: What fuse holder model is required for this fuse?
A: It requires a fuse holder compliant with UL Class J standards. For specific compatible holder models, please contact via email for confirmation, and we will recommend suitable fuse holders.
