NH315-690
315A 690V gG industrial fuse for high-power motor protection and power distribution with 100kA breaking capacity.
Product Overview
Description
The NH315-690 is a high-current industrial fuse for large motor protection and power distribution applications.
With 690V rating and 315A current rating, this fuse provides full-range protection for high-power industrial circuits.
The 100kA breaking capacity handles severe fault currents in large industrial power systems.
Product Series
NH
Primary Application
Large motor protection
Key Features
- High-current 315A rating for large motors
- 690V rating for industrial applications
- 100kA breaking capacity
- Standard NH2 size for easy installation
- Visual indicator for blown fuse detection
- IEC and DIN compliant
Specifications
| Voltage Rating | 690V AC |
|---|---|
| Current Rating | 315A |
| Breaking Capacity | 100kA @ 690V |
| Size | NH2 |
| Mounting | NH fuse switch or base |
| Operating Temperature | -40°C to +85°C |
| Time-Current | gG general purpose |
| Standards | IEC 60269-1, DIN 43620 |
Applications
Large motor protection
Motor drive and control systems
Power distribution
Electronic system design
Control circuits
Industrial automation and control
Transformer protection
Electronic system design
FAE Expert Insights
"The NH315-690 is commonly used for large motor protection in industrial applications. The 315A rating is ideal for motors in the 150-200kW range. I always recommend using gG fuses for motor circuits with separate overload relays. The NH2 size is standard across all manufacturers, making replacement easy."
High-current 315A rating ideal for large industrial motor protection
— Robert Johnson, BeiLuo
Frequently Asked Questions
What motor size is the NH315-690 suitable for?
The NH315-690 is suitable for three-phase motors in the 150-200kW range at 400V, or 200-250kW at 690V. Always verify the motor full-load current and starting current to ensure proper protection coordination.
Use for motors 150-200kW at 400V. Verify motor current ratings before selection.