The Bussmann Fusetron FRS-R-75 is a 75-amp, 600V AC/300V DC, dual-element, time-delay fuse designed for superior protection in various electrical applications.
Key Features
- Dual-Element Design: Provides both high-performance short-circuit and overload protection, making it suitable for circuits with temporary motor overloads and surge currents.
- Time-Delay Capability: Offers a minimum of 10 seconds time delay at 500% of rated current, allowing the use of smaller fuse ratings compared to non-time delay fuses.
- High Interrupting Rating: Capable of interrupting up to 200,000 amperes at 600V AC and 20,000 amperes at 300V DC, ensuring robust protection against high fault currents.
- Current-Limiting: Limits the let-through energy during a fault condition, enhancing the protection of downstream components.
- Versatile Applications: Ideal for use in combination starters, motor control centers, machinery disconnects, and power panelboards.
Specifications
- Amperage Rating: 75 A
- Voltage Rating: 600V AC / 300V DC
- Interrupting Rating: 200 kAIC at 600V AC; 20 kAIC at 300V DC
- Response Time: 10 seconds at 500% of rated current
- Fuse Class: RK5
- Body Size: 1.11 inches in diameter x 7.88 inches in length
- Mounting Type: Blade end x blade end
- Standards & Approvals: UL 248-12, CSA, CE
The FRS-R-75 fuse’s time-delay feature allows for the use of smaller fuse ratings, leading to cost savings by permitting the use of smaller size switches and panels. Its dual-element construction ensures reliable protection against both short circuits and overloads, making it a dependable choice for safeguarding electrical systems.
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