QSU SC-30 30A Class G Time Delay Fuse (5 Pack) – 480 Vac / 300 Vdc

Overview

The SC-30 from QSU is a general-purpose time-delay fuse designed to protect electrical circuits in everyday appliances, lighting, and heating equipment. With a 30-amp rating and robust interrupting capabilities, it offers a straightforward way to help guard wiring and components from overloads and transient surges that can occur during startup or brief overloads.

Key specifications

• Voltage: 480 Vac, 300 Vdc
• Current: 30 Amps
• Class G Time Delay
• Fuse size: 1.62" x 0.41"
• Max interrupting ratings: 100 kA at 480 Vac, 10 kA at 300 Vdc
• Package: five fuses per pack

Practical uses

In real-world settings, these fuses commonly serve in household and commercial equipment where motors, heaters, or control circuits can experience startup surges. They are suitable for safeguarding power supplies and control elements without immediate disruption during transient events.

• Appliances with motors or heating elements
• Lighting systems and control gear
• Consumer or light industrial equipment

Design and form factor

The SC-30’s cylindrical body and compact profile simplify replacement in many fixtures. Its size—1.62 inches long with a slender 0.41-inch diameter—helps it fit standard fuse holders and panels without crowding nearby components.

What’s in the box

Each order includes five SC-30 fuses, offering a ready supply for routine maintenance or multiple devices. Having a small batch on hand can support timely replacements and ongoing protection in various machines.

Shopping notes

Always verify that the SC-30’s ratings align with your equipment’s specifications and the manufacturer’s guidance. The listed voltages, current, and time-delay behavior indicate suitable use in circuits that require reliable, general-purpose protection within those ranges.