Claire
Mr.Fu
Claire
China HR6 Industrial Fused Knife Disconnect Switch Factory - Reliable Circuit Protection & Suppliers for 4A-630A Loads
Type and Meaning
| 1 | Fuse-disconnector |
| 2 | Design code |
| 3 | Rated operational current: 160A, 250A, 400A, 630A |
| 4 | Number of poles: 3-pole |
| 5 | "0" indicates non-contact-signal-device type "1" indicates contact-signal-device type |
Product Display
Technical Parameters
Switch-fuse coordination
| Conventional free-air thermal current (A) | Associated fuse-links | Rated voltage (V) | Fuse element current rating (A) |
| 160 | NT00 | 400 | 4,6,10,16,20,25,32,40,50,63,80,100,125,160 |
| 600 | 4,6,10,16,20,25,32,40,50,63,80,100 | ||
| 250 | NT1 | 400 | 80,100,125,160,200,224,250 |
| 600 | 80,100,125,160,200 | ||
| 400 | NT2 | 400 | 125,160,200,224,250,300,355,400 |
| 600 | 125,160,200,224,250,300,315 | ||
| 630 | NT3 | 400 | 315,355,400,425,500,630 |
| 600 | 315,355,400,425 |
Key Technical Parameters of Switches
| Model (number) | HR6-160 | HR6-250 | HR6-400 | HR6-630 | ||
| Rated insulation voltage (V) | 660 | 660 | 660 | 660 | ||
| Rated thermal current (A) | 100 | 250 | 400 | 630 | ||
| Rated operational current (A) | 400V | 160 | 250 | 400 | 630 | |
| 660V | 100 | 200 | 315 | 425 | ||
| Rated making capacity & Rated breaking capacity (A) (100%Ue/time) |
400V, COSΦ=0.35 AC-23B |
Making | 1280 | 2000 | 3200 | 5040 |
| Breaking | 960 | 1500 | 2400 | 3780 | ||
| 660V, COSΦ=0.65 AC-22B |
Making | 480 | 750 | 1200 | 1890 | |
| Breaking | 480 | 750 | 1200 | 1890 | ||
| Rated short-circuit breaking current (kA) | 50 | 50 | 50 | 50 | ||
| Maximum prospective peak current (kA) | 100 | 100 | 100 | 100 | ||
| Pollution degree | 3 | 3 | 3 | 3 | ||
| Installation category | Ⅲ | Ⅲ | Ⅱ | Ⅱ | ||
The auxiliary switch has a rated voltage of 400V AC, a conventional heating current of 6A, an utilization category of AC-15, and a rated control capacity of 300VA.
Outline and Installation Dimension
| Model Number | Overall Dimensions (mm) | Mounting Dimensions (mm) | |||||||||
| A | B | C | D | E | a | b | c | d | Φe | Φf | |
| HR6-160/30 | 134 | 215 | 142 | 245 | 40 | 80 | 198 | 80 | 40 | Φ6.5 | Φ6.5 |
| HR6-250/30 | 184 | 280 | 162 | 320 | 60 | 120 | 260 | 120 | 60 | Φ8.5 | Φ8.5 |
| HR6-400/30 | 220 | 300 | 194 | 360 | 72 | 144 | 280 | 144 | 60 | Φ8.5 | Φ8.5 |
| HR6-630/30 | 244 | 300 | 194 | 360 | 80 | 160 | 280 | 160 | 60 | Φ8.5 | Φ8.5 |
Frequently Asked Questions
What is the HR6 fuse-disconnector used for?
The HR6 fuse-disconnector is an industrial-grade switch designed to provide electrical isolation and overcurrent protection in power distribution systems. It is commonly used in low-voltage switchboards, distribution panels, and industrial control equipment.
What are the available current ratings for the HR6 series?
The HR6 series is available in four rated operational current options: 160A, 250A, 400A, and 630A, covering a wide range of industrial application requirements.
What types of fuse-links are compatible with the HR6 fuse-disconnector?
The HR6 series is compatible with NT-type fuse-links: NT00 for the 160A model, NT1 for 250A, NT2 for 400A, and NT3 for the 630A model. The fuse element current ratings vary accordingly to match each model's specifications.
What is the difference between the "0" and "1" suffix in the HR6 model code?
"0" in the model code indicates a non-contact-signal-device type, meaning no auxiliary signal contacts are included. "1" indicates a contact-signal-device type, which features an integrated auxiliary switch for signaling and control purposes.
What is the rated short-circuit breaking current of the HR6 series?
All models in the HR6 series share a rated short-circuit breaking current of 50kA, with a maximum prospective peak current of 100kA, ensuring robust performance in fault conditions.
What are the specifications of the auxiliary switch in the HR6 fuse-disconnector?
The auxiliary switch has a rated voltage of 400V AC, a conventional heating current of 6A, an utilization category of AC-15, and a rated control capacity of 300VA, making it suitable for control circuit signaling applications.