FLSR090-ID - 90Amp Fuse

FLSR090-ID - 90Amp Fuse

Protect your industrial systems with the Littelfuse FLSR090ID Class RK5 Indicating Time‑Delay Fuse. Designed to deliver top‑tier performance and dependable protection, this 90‑amp fuse features knife‑blade style terminals that provide solid, vibration‑resistant connections in demanding environments. Its dual‑element, time‑delay (Slo‑Blo) design is especially suited for applications with heavy inrush currents—like motors, transformers, and large machinery—so you’re much less likely to get nuisance blows. Plus, the built‑in blown‑fuse indicator lets maintenance staff quickly spot and address a blown fuse, minimizing downtime and keeping your facility moving.

Key Features and Benefits

• Knife‑blade style terminals: deliver firm connections that resist mechanical stress and vibration.
• Time‑delay (Slo‑Blo) design: handles temporary surges and inrush currents without tripping prematurely.
• Indicating feature: visual indicator signals a blown fuse at a glance, speeding up maintenance.
• Dual‑element protection: offers both overload and short‑circuit protection for enhanced reliability.

Technical Specifications

• Catalog Number: FLSR090ID
• Continuous Current Rating: 90 Amps
• Maximum Voltage (AC): 600 Volts
• Maximum Voltage (DC): 300 Volts
• Interrupting Rating:
  • up to 200,000 Amps at 600 V AC
  • 20,000 Amps at 300 V DC
• Fuse Type: Dual‑element, time‑delay (Slo‑Blo)
• Construction Style: Knife‑blade terminals
• Fuse Class: RK5
• Indicating: Yes — built‑in visual blown‑fuse indicator

Material Compliance and Certifications

• UL Listed: UL 248‑12, Class RK5
• CSA Certified: File No. LR29862
• RoHS Compliant: Meets modern environmental standards without sacrificing performance.

Where It Works Best

• Motor control and distribution centers
• Heavy machinery, pumps, compressors, HVAC units
• Transformers, lighting systems, and commercial power distribution panels
• Systems subject to frequent inrush currents or variable loading