Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE DIII-FUSE 690V 20A GL DIIIGG69V20
Mersen W218151 DIIIGG69V20 DIN D gG fuse-link with 20 A rating, 690 V AC and 500 V DC operation for reliable low voltage circuit protection.
£34.81
Why Choose the Mersen W218151 DIIIGG69V20 DIN D Fuse-link?
The Mersen W218151 (DIIIGG69V20) is a premium DIN D gG fuse-link engineered to provide reliable overload and short-circuit protection for low voltage electrical distribution systems. Manufactured by Mersen, a global leader in circuit protection technology, this fuse is designed to protect cables, conductors and electrical equipment in industrial, commercial and infrastructure applications.
Featuring a 20 A current rating, 690 V AC operating voltage and a DIII screw fuse format, the W218151 is ideal for higher voltage distribution systems requiring dependable circuit protection. Its blue identification indicator enables rapid visual identification during installation and maintenance, while the ceramic body provides excellent durability and long service life.
The DIN D fuse system continues to be widely used throughout industrial and commercial electrical installations where safe fuse replacement and proven circuit protection are essential. Manufactured to recognised IEC, DIN and VDE standards, the W218151 delivers dependable protection and consistent electrical performance in demanding environments.
Key Advantages
- Premium DIN D gG fuse-link for industrial circuit protection.
- 20 A current rating for low voltage distribution circuits.
- 690 V AC rated voltage for higher voltage applications.
- Reliable overload and short-circuit protection.
- Blue identification indicator for quick fuse recognition.
- Durable ceramic construction for dependable long-term performance.
Key Features
- Manufacturer: Mersen.
- Item number: W218151.
- Catalogue number: DIIIGG69V20.
- DIN D gG fuse-link.
- DIII fuse size.
- 20 A rated current.
- 690 V AC rated voltage.
- Blue identification indicator.
- Visual indicator flag.
- Ceramic body construction.
Reliable Protection for Low Voltage Distribution
General purpose gG fuse-links provide full-range protection against overloads and short-circuit currents, helping safeguard electrical installations while reducing the risk of equipment damage. Their proven design makes them suitable for industrial machinery, commercial buildings and electrical distribution systems.
The Mersen W218151 is ideal for industrial switchboards, control panels, distribution boards and machinery using DIN D screw fuse systems. Its dependable operating characteristics and robust ceramic construction ensure long-lasting protection in demanding environments.
Typical Applications
- Industrial electrical distribution systems.
- Commercial switchboards.
- Control panels.
- Cable and conductor protection.
- Machine control equipment.
- Low voltage electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 20 A | |
|---|---|---|
| Voltage | 690 V | |
| Device Type | Fuse link | |
| Fuse Type | D / D0 (Neozed/Diazed) | |
| Fuse Size | DIII | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Model | W218151 | |
| Catalogue number | DIIIGG69V20 | |
| Product type | DIN D gG fuse-link | |
| Fuse size | DIII | |
| Rated current | 20 A | |
| Rated AC voltage | 690 V | |
| Rated DC voltage | 500 V | |
| Fuse characteristic | gG (general purpose) | |
| Breaking capacity | 50 kA | |
| Identification colour | Blue | |
| Body material | Ceramic | |
| RoHS compliant | Yes | |
| HS Code | 85361050 |
Frequently Asked Questions
What is the Mersen W218151 used for?
The W218151 protects electrical circuits, cables and equipment against overloads and short-circuit faults in industrial and commercial electrical installations.
What is the current rating of this fuse?
This fuse has a 20 A rated current.
What voltage is this fuse designed for?
The fuse is rated for operation up to 690 V AC and 500 V DC.
What does the gG classification mean?
gG denotes a full-range general purpose fuse that provides protection against both overloads and short-circuit currents.
Where is this fuse typically installed?
It is commonly installed in DIN D fuse holders within industrial switchboards, distribution boards and electrical control systems.
Trusted by Electrical Professionals Worldwide
Mersen DIN D fuse-links are trusted by electrical contractors, panel builders and maintenance engineers for dependable low voltage circuit protection across industrial and commercial installations.
