This screwcap is designed for DII-type fuse bases with an E27 screw thread and a 25A current rating. The porcelain body delivers the thermal resistance and electrical insulation needed at the fuse carrier contact in domestic and light commercial panels.

The DII designation is the medium size in the D-type diazed fuse system. Its E27 thread distinguishes it clearly from the smaller DI (E16) and larger DIII (E33) sizes, preventing incorrect installation.

Key Features

• Designed for DII-type fuse bases with E27 thread
• Rated current: 25A
• Porcelain construction for thermal and electrical insulation
• DII format — medium size in the D-type diazed fuse system

Product Benefits

• Porcelain withstands heat generated at 25A load without cracking or deforming
• E27 thread is unique to DII, preventing mix-up with DI (E16) or DIII (E33) caps
• 25A rating covers kitchen appliance circuits, workshop feeds, and sub-distribution boards
• Screw-on replacement without tools or panel modifications

Technical Specifications

• Type: DII (D-type fuse base screwcap)
• Thread: E27
• Rated Current: 25A
• Material: Porcelain

Why You'll Love It

• Porcelain body resists thermal fatigue over years of operation at 25A
• E27 thread size physically prevents fitting a DI or DIII cap on a DII base
• Compact form fits standard distribution boards without occupying extra space
• Package includes 1× screwcap for fuse base DII/E27/25A