20 Amp MDL Type Slow Blow Fuses – 5 Pack

Reliable 20 Amp Slow Blow Fuses for Everyday Protection

Keep your electronics and appliances safe with these 20 amp slow blow fuses. Designed in the popular 3AG (MDL) style and measuring 6 x 30mm, these glass cartridge fuses are perfect for household, automotive, and hobby projects. Each pack includes 5 high-quality NTE 74-6SG20A MDL type slow blow fuses, giving you reliable spares whenever you need them.

Why Choose MDL Type Slow Blow Fuses?

Slow blow fuses, also known as time delay fuses, are built to handle short bursts of extra current—like when motors or devices first turn on—without blowing. This makes them ideal for electronics, power tools, audio equipment, and home appliances that can experience occasional power surges.

Key Features & Benefits

• Perfect replacement for 20 amp 3AG, MDL, or 6x30mm glass cartridge fuses
• Time delay (slow blow) design protects sensitive components from false tripping
• Suitable for 125V and 250V applications
• Clear glass body for easy inspection if the fuse has blown
• Sold in a convenient 5 pack for repairs and peace of mind
• Trusted NTE quality – Part Number: 74-6SG20A

Technical Specifications

• Rated Current: 20 Amps
• Rated Voltage: 125V / 250V AC
• Fuse Size: 6 x 30mm (Standard 3AG/MDL)
• Breaking Capacity: 125VAC: 10,000A; 250VAC: 200A
• Time/Delay Characteristics:
  • 110% of rated current: Opens in 4 hours minimum
  • 135% of rated current: Opens in 1 hour maximum
  • 200% of rated current: Opens in 12–120 seconds

For more detailed specifications, see the NTE 6x30mm Glass Fuse Datasheet.

Easy Installation

Simply match the fuse rating and size, pop it in your fuse holder, and restore safe operation to your device. These 20 amp fuses are compatible with most fuse holders designed for 3AG/MDL or 6x30mm fuses.

Get Peace of Mind with Vetco Electronics

Order your 20 amp MDL type slow blow fuse 5 pack today and be prepared for quick, cost-effective repairs at home or on the go. Great for everyday users, DIYers, hobbyists, and anyone looking for a quality replacement fuse.