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

Description

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