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MERSEN FUSE D01-RECTI.EINSATZ 440V 4A GR D01GR44V4
Mersen N218673 D01 gR high-speed fuse link rated at 4 A and 440 V for full-range protection of semiconductors, drives, rectifiers and power electronic equipment.
Why Choose the Mersen N218673 D01GR44V4 High-Speed Fuse Link?
The Mersen N218673 is an ultra-fast D01 gR semiconductor fuse link designed to protect sensitive power electronic components against damaging overload and short-circuit currents. Part of Mersen's high-speed D0 fuse range, it provides rapid fault interruption for industrial systems containing diodes, thyristors, rectifiers and electronic power converters.
With a rated current of 4 A and a rated voltage of 440 V, the N218673 is suitable for low-current power electronic circuits where fast and precise protection is essential. Its gR operating class provides full-range semiconductor protection, responding quickly to both overloads and high-level short-circuit faults.
The compact D01 NEOZED screw-in format allows straightforward installation in compatible D0 fuse bases and holders. Its high current-limiting performance and 100 kA breaking capacity help reduce the thermal and electrical energy transferred to valuable semiconductor equipment during a fault.
Key Advantages
- Ultra-fast protection for semiconductors and power electronics.
- 4 A rated current for low-current electronic circuits.
- 440 V rated voltage.
- gR full-range operating class for overload and short-circuit protection.
- High 100 kA breaking capacity.
- Compact D01 screw-in fuse-link design.
Key Features
- Mersen high-speed D0 fuse range.
- 4 A rated current.
- 440 V rated voltage.
- D01 fuse-link size.
- gR semiconductor protection characteristic.
- Ultra-fast and current-limiting operation.
- High breaking capacity for demanding fault conditions.
- Suitable for compatible D01 NEOZED fuse holders.
Reliable Protection for Power Electronic Equipment
The Mersen N218673 operates rapidly during electrical faults to limit peak current and reduce the amount of energy passed through to protected equipment. This helps prevent damage to semiconductor junctions and reduces thermal and mechanical stress within power electronic assemblies.
Its gR full-range characteristic makes it suitable for protecting circuits against both overload and short-circuit currents. The fuse is commonly used where standard general-purpose fuse links may not operate quickly enough to protect sensitive electronic components.
Typical Applications
- Variable speed drives and frequency converters.
- AC and DC motor drive systems.
- Diode and thyristor circuits.
- Rectifiers and power converters.
- Industrial power supplies.
- Automation and power electronic control panels.
Technical Specifications
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| Current | 4 A | |
|---|---|---|
| Voltage | 440 V | |
| Device Type | Fuse link | |
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Size | D01 | |
| Fuse Class | gR | |
| Manufacturer | Mersen | |
| Series | High-Speed D0 Semiconductor Fuse Links | |
| Model | N218673 | |
| Manufacturer reference | D01GR44V4 | |
| Product type | High-speed semiconductor fuse link | |
| Fuse size | D01 | |
| Connection size | E14 | |
| Rated current | 4 A | |
| Rated voltage | 440 V | |
| Operating class | gR | |
| Protection range | Full-range semiconductor protection | |
| Breaking capacity | 100 kA | |
| Operating characteristic | Ultra-fast acting | |
| Mounting format | Screw-in D0 fuse system | |
| Typical dimensions | Approximately 11 × 36 mm |
Frequently Asked Questions
What is the Mersen N218673 used for?
The Mersen N218673 is used to protect sensitive semiconductor devices and power electronic equipment against overload and short-circuit currents.
What is the current rating of the N218673?
The fuse link has a rated current of 4 A.
What voltage is this fuse rated for?
The Mersen N218673 has a rated voltage of 440 V.
What does the gR operating class mean?
The gR operating class identifies an ultra-fast, full-range fuse designed to protect semiconductor devices against both overloads and short circuits.
Which fuse size does the N218673 use?
The N218673 uses the compact D01 NEOZED screw-in format and should be installed in a compatible D01 fuse holder or base.
Trusted by Power Electronics Professionals
Mersen high-speed fuse links are trusted by drive manufacturers, panel builders and industrial engineers to protect sensitive semiconductor components and maintain reliable operation in demanding power electronic systems.
