Product Description
The RT-28 is a miniature, fast-acting glass cartridge fuse commonly used in electronic circuits for overcurrent protection. It features a 5×20 mm standard size (5 mm diameter, 20 mm length), making it compatible with a wide range of fuse holders and equipment. The RT-28 is widely employed in consumer electronics, power supplies, industrial controls, and automotive applications due to its reliability, compact size, and cost-effectiveness. It typically has a ceramic or glass body with nickel-plated brass end caps for good electrical conductivity and corrosion resistance.
| Parameter |
Value / Description |
| Type |
Fast-acting (F) or Time-delay (T) variants available |
| Body Material |
Glass (standard) or Ceramic |
| Dimensions |
5 mm × 20 mm (standard IEC/EN 60127 size) |
| Voltage Rating |
Up to 250 V AC / 125 V DC (varies by model) |
| Current Rating |
Typically 100 mA to 30 A (common values: 1A, 2A, 5A, etc.) |
| Breaking Capacity |
Low breaking capacity (LBC): ~35 A at 250 V AC |
| Standards Compliance |
IEC 60127, UL 248-14, CSA |
| Operating Temp. |
-40°C to +85°C (typical) |
| End Caps |
Nickel-plated brass |
| Applications |
Power adapters, LED drivers, household appliances, control panels |
✓ Rated voltage: 380-500VAC
✓ Rated current: 2-125A
✓ Rated breaking capacity: 100kA
✓ Open type, each support component has the function of isolating the power supply
✓ Equipped with an indicator light device for disconnection status display
✓ Complies with standards: IEC60269 / GB13539
✓ Compliant certification: CCC certification
Frequently Asked Questions
What are the primary applications for the RT28 fuse?
The RT28 is widely used in power adapters, LED drivers, household appliances, control panels, and various electronic circuits requiring overcurrent protection.
What is the rated voltage and current for this model?
The RT28 supports a rated voltage of 380-500VAC and a current range from 2A up to 125A.
Does the fuse holder include any safety indicators?
Yes, it is equipped with an indicator light device to ensure the disconnection status is clearly displayed, preventing false operations.
What certifications does the RT28 comply with?
The product complies with IEC60269 and GB13539 standards and has obtained CCC certification.
What is the breaking capacity of the RT28?
It features a high rated breaking capacity of 100kA, ensuring robust protection for industrial and consumer equipment.
What materials are used for the end caps?
The end caps are made of nickel-plated brass, which provides excellent electrical conductivity and resistance to corrosion.
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