Overview
The Cefco CRN-R-150 is a heavy-duty, dual-element time delay fuse engineered for industrial electrical protection. Rated at 150 amperes and 250 volts AC/DC, this Class RK5 fuse provides reliable current-limiting protection for machine tools, motors, transformers, and control circuits. The time-delay element allows harmless inrush currents while protecting against short circuits and overloads.
Key Features
- 150 ampere capacity with 250 VAC/125 VDC rating
- Class RK5 current-limiting fuse classification
- Dual element design for time-delay operation
- Blade terminal mounting for standard fuse clips
- Industrial-grade construction for reliable protection
- Drop-in replacement for compatible RK5 fuses
Technical Specifications
| Amperage Rating | 150A |
| Voltage Rating | 250 VAC / 125 VDC |
| Fuse Class | RK5 (Current Limiting) |
| Type | Dual Element Time Delay |
| Physical Dimensions | 40 x 108 mm |
| Terminal Type | Blade Terminal |
| Manufacturer | Cefco |
| Part Number | CRN-R-150 |
Typical Applications
The Cefco CRN-R-150 is commonly specified for:
- Machine tool control circuits
- Motor feeder circuits requiring time-delay protection
- Transformer primary and secondary circuits
- Industrial panel-mounted distribution systems
- Heavy-duty equipment requiring current-limiting protection
Compatibility & Replacements
Compatible With
- Standard RK5 Class fuse clips and holders
- Industrial electrical panels rated 250V or below
- Blade-terminal fuse blocks
- Motor control centers with RK5 rejection features
Replaces / Drop-In Replacement For
- Cefco CRN-R series 150A fuses
- Bussmann FRN-R-150 equivalent
- Other Class RK5 150A, 250V time-delay fuses with blade terminals
Works With
- RK5 Class fuse rejection systems
- Industrial motor control systems
- Panel-mounted fuse blocks with blade clips
- Current-limiting overcurrent protection devices
