Ferraz Shawmut: Product Group

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Medium Voltage Fuses / R-Rated
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On one hand, you need current-limiting protection for medium-voltage transformers and distribution systems. On the other, you need short circuit protection for medium-voltage motors and motor controllers. Ferraz Shawmut's line of medium-voltage UL Listed fuses fills the bill with E-rated, R-rated and capacitor fuses.

		2.4kV Ferrule Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated fuses are current-limiting, high interrupting rating fuses intended for the short-circuit protection of medium voltage motors and motor controllers. R-rated fuses are back up fuses that have a minimum interrupting rating, and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the R- …more

		4.8kV Ferrule Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated fuses are current-limiting, high interrupting rating fuses intended for the short-circuit protection of medium voltage motors and motor controllers. R-rated fuses are back up fuses that have a minimum interrupting rating, and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the R- …more

		7.2kV Ferrule Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated fuses are current-limiting, high interrupting rating fuses intended for the short-circuit protection of medium voltage motors and motor controllers. R-rated fuses are back up fuses that have a minimum interrupting rating, and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the R- …more

		7.2kV Bolted Medium Voltage Amp-trap R-rated fuses are current-limiting, high interrupting rating fuses intended for the short-circuit protection of medium voltage motors and motor controllers. R-rated fuses are back up fuses that have a minimum interrupting rating, and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the R-rated fuse size. Amp-trap …more

		3.3 kV DIN Size Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated DIN style fuses are current limiting, high interrupting rating fuses, intended for the short circuit protection of medium voltage motors and motor controllers. This product range offers North American R-rated performance in the IEC DIN mounting configuration of 442mm. R-rated fuses are applied as back up fuses that have a minimum interrupting rating, an …more

		5.5 kV DIN Size Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated DIN style fuses are current limiting, high interrupting rating fuses, intended for the short circuit protection of medium voltage motors and motor controllers. This product range offers North American R-rated performance in the IEC DIN mounting configuration of 442mm. R-rated fuses are applied as back up fuses that have a minimum interrupting rating, an …more

		7.2 kV DIN Size Medium Voltage R-rated MOTOR STARTER FUSES Amp-trap R-rated DIN style fuses are current limiting, high interrupting rating fuses, intended for the short circuit protection of medium voltage motors and motor controllers. This product range offers North American R-rated performance in the IEC DIN mounting configuration of 442mm. R-rated fuses are applied as back up fuses that have a minimum interrupting rating, an …more