Overview
ETI 20A 500V DII Fuse Links are ceramic low-voltage D-type fuse elements designed for industrial and residential electrical installations. The DII size with E27 thread construction ensures compatibility with standard Diazed fuse holders. These fuses deliver dependable short-circuit and overload protection in control panels, distribution boards, and switchgear applications.
Key Features
- Rated Current: 20A at 500V AC / 250V DC
- High Breaking Capacity: 50 kA at 500V AC; 8 kA at 500V DC
- Fast-Acting Characteristics (gG-gL): Time-lag protection suitable for general equipment and cable protection
- Top Fuse Status Indicator: Visual blown-fuse indication visible through screw cap when installed
- Ceramic Body Construction: Temperature-resistant steatite material with welded copper melt element
- Low Power Dissipation: Efficient thermal performance in continuous duty
Technical Specifications
- Rated Current: 20 A
- AC Voltage Rating: 500 V
- DC Voltage Rating: 250 V
- Breaking Capacity (AC): 50 kA
- Breaking Capacity (DC): 8 kA
- Fuse Type: D (DII size)
- Thread Size: E27
- Characteristics: gG–gL (general-purpose / time-lag)
- Power Dissipation: 2.6 W
- Weight (single): 28 g
- Dimensions: 22 × 22 × 50 mm (logistic)
- Body Material: Ceramic (steatite)
- Indicator Type: Top fuse-status indicator
- Standards Compliance: DIN EN 60269-1, DIN EN 60269-3, IEC 269, VDE 0636, VDE DII 6A–25A, OVE DII
Typical Applications
ETI DII fuse links are widely used for:
- Cable and conductor protection in industrial control circuits
- Equipment protection in residential and commercial distribution boards
- Low-voltage switchgear and fused disconnect switches
- Industrial machinery and plant electrical installations
- Control and signal circuit protection against overload and short-circuit faults
Compatibility & Replacements
Compatible With
- Standard E27 Diazed fuse bases and fuse holders (ceramic and plastic bases)
- Fused switch disconnectors rated for DII size
- Industrial control panels and distribution switchboards compliant with IEC 60269 and VDE standards
- Installations conforming to DIN EN 60269-1 and DIN EN 60269-3
Replaces / Drop-In Replacement For
ETI 002312406 is the standard gG–gL variant. Common equivalent part numbers for 20A 500V DII fuses include alternative gG-type models from other manufacturers (e.g., Mersen DII 20A 500V), though direct part-number compatibility should be verified with your equipment documentation. For other ETI 20A DII variants, see dZ/gF (002312106) or semiconductor-protection versions (gR types).
Works With
- D-system fuse infrastructure and mounting hardware
- IEC 60269 and VDE 0636 compliant equipment
- Industrial low-voltage distribution systems up to 500V AC / 250V DC
- Standard fuse extractors and cartridge tools for DII/E27 elements
