Class RK5 Fuse, 7 Amp, Dual, 600 Vac/300 Vdc, Non-indicating, Ferrule End Connection
Class RK5 Fuse, 7 Amp, Dual, 600 Vac/300 Vdc, Non-indicating, Ferrule End Connection
Bussmann

Bussmann FRS-R-7 Class RK5 Fuse, 7 Amp, Dual, 600 Vac/300 Vdc, Non-indicating, Ferrule End Connection

  • MPN: FRS-R-7
  • UPC: 051712508254
  • PPN: BUS-FRS-R-7

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Spec sheet

Description

Class RK5 Fuse, 7 Amp, Dual, 600 Vac/300 Vdc, Non-indicating, Ferrule End Connection

Features

  • Engineered with a built-in 10-second minimum time-delay at 500% of the 7-amp rated current, this Fusetron fuse allows harmless, temporary transient surges to pass without nuisance tripping. This eliminates frustrating, costly downtime caused by standard fast-acting fuses opening unnecessarily when inductive heavy machinery starts up.
  • Featuring a heavy-duty 200,000-amp symmetrical interrupting capacity at 600 Vac, this fuse provides massive short-circuit protection for severe electrical faults. It safely isolates destructive overcurrents before they can damage downstream motor control centers, combination starters, or main distribution panelboards.
  • As a fully certified UL Class RK5 current-limiting cartridge fuse, it delivers exceptional overcurrent protection that helps facility managers and field engineers comply with NEC requirements. Its physical rejection features ensure it safely drops into standard Class R fuse blocks, preventing the dangerous installation of lower-rated, non-current-limiting legacy fuses.
  • Measuring standard ferrule-end dimensions of 0.81 inches in diameter by 5.00 inches in length, this fuse drops directly into existing heavy-duty 600 Vac (or 300 Vdc) clips. It serves as an exact, seamless cross-reference drop-in for common alternative industry part numbers like the Littelfuse FLSR-7 or Mersen TRS7R.

Documentation & Downloads

Specifications

Additional

Voltage
600 Vac, 300 Vdc
Interrupting Rating
200 kAIC at 600 Vac, 20 kA at 300 Vdc
Fuse Class
Class RK5
Connection Type
Ferrule end x ferrule end
Product Width
1.11 in
Product Weight
.4 lb
Fuse Indicator
Non-indicating
Amperage7 A
Response Time10 sec at 500% rated current
Fuse TypeDual-element, time-delay
Product Length7.88 in
Product Height1.11 in
Number of ElementsDual
CompliancecULus Listed, UL 248-12, CSA C22.2 No. 248.12, CE Marked

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