The Cooper Bussmann FRS-R-4/10 is a 0.4-ampere, 600-volt, dual-element, time-delay fuse designed for reliable protection in various electrical applications.
Key Features
- Dual-Element Design: Provides superior time-delay performance, allowing for closer sizing and enhanced protection of motors and transformers.
- Time-Delay Capability: Offers a minimum of 10 seconds delay at 500% of the rated current, accommodating temporary inrush currents without unnecessary fuse operation.
- High Interrupting Rating: Rated at 200,000 amperes interrupting capacity (AIC) at 600 VAC and 20,000 AIC at 300 VDC, ensuring robust protection against high fault currents.
- Current-Limiting: Limits the let-through energy during fault conditions, reducing potential damage to downstream equipment.
- Class RK5 Compliance: Meets UL Class RK5 standards, suitable for a wide range of industrial applications.
Specifications
- Amperage Rating: 0.4 A
- Voltage Rating: 600 VAC / 300 VDC
- Interrupting Rating: 200 kA at 600 VAC; 20 kA at 300 VDC
- Response Time: 10 seconds at 500% of rated current
- Dimensions: 0.81 inches in diameter x 5 inches in length
- Material: Fiberglass body
- Mounting Type: Holder mount
- Terminal Type: Ferrule ends
Applications
- Combination starters
- Motor control centers
- Machinery disconnects
- Power panelboards
This box contains 10 fuses, making it convenient for stocking and maintenance purposes. The FRS-R-4/10 fuse is an ideal choice for protecting motors and transformers against overloads and short circuits, ensuring operational safety and equipment longevity.
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