Description
The Eaton Bussmann FRS-R-40 is a 40A Fusetron fuse designed for industrial and commercial circuits that require dependable overcurrent protection. Its Class RK5, dual-element construction provides a time-delay characteristic that can accommodate appropriate motor-starting and transformer inrush currents while responding to sustained overloads and short-circuit conditions.
Technical Specifications
– **Brand:** Eaton Bussmann
– **Series:** Fusetron
– **Model:** FRS-R-40
– **Rated current:** 40A
– **Voltage rating:** 600V AC / 250V DC
– **Fuse class:** Class RK5
– **Construction:** Dual-element, current-limiting, time-delay
– **Interrupting rating:** 200kA at 600V AC; 20kA at 250V DC
– **Response time:** 10 seconds at 500% of rated current
– **Connection:** Ferrule end × ferrule end
– **Fuse indication:** Non-indicating
Typical Applications
When correctly selected and coordinated, the FRS-R-40 may be used in:
– Motor control circuits and combination starters
– Industrial machinery disconnects
– Motor control centers
– Electrical power panelboards
– Suitable transformer and industrial branch circuits
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