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.
Why Choose the MERSEN FUSE 6,9 GRB 17 D08P 40 6,9GRB17D08P40?
The Mersen D221010, catalogue reference DN17GB69V40P, is a Protistor® gRB high-speed semiconductor fuse specifically developed to protect battery systems, DC power circuits and sensitive semiconductor equipment. Designed with a gRB operating characteristic, it provides both overload and short-circuit protection, making it particularly suitable for battery protection and energy storage applications.
Manufactured using precision silver fuse elements housed within a robust ceramic body filled with high-grade silica sand, the D221010 delivers excellent current-limiting performance with low let-through energy (I²t). Its compact DO8 square-body construction allows installation into compatible fuse holders where dependable protection of power electronic equipment is essential.
Rated at 40 A with a 690 V voltage rating, the D221010 is commonly used in battery energy storage systems (BESS), DC distribution equipment, industrial converters, UPS systems, renewable energy installations and other applications requiring reliable semiconductor and battery circuit protection.
The Mersen D221010 is engineered to safeguard modern battery storage and semiconductor equipment from overloads and high fault currents. Its gRB characteristic enables dependable full-range protection while reducing thermal and mechanical stress on expensive power electronic components.
Typical installations include battery energy storage systems, UPS equipment, DC converters, industrial drives and renewable energy applications where reliable protection and rapid fault interruption are essential for system safety and continuity of operation.
Tick the specs you need, then view products that match.
| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Current | 40 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Protistor® gRB | |
| Model | D221010 | |
| Catalogue number | DN17GB69V40P | |
| Product type | High-speed semiconductor fuse | |
| Rated current | 40 A | |
| Rated voltage | 690 V | |
| Operating class | gRB | |
| Fuse body | DO8 square body | |
| Application | Battery and semiconductor protection | |
| Construction | Silver fuse elements in ceramic body with silica sand filling | |
| Installation | Compatible DO8 fuse holder |
The D221010 is a Protistor® gRB fuse designed to provide overload and short-circuit protection for battery systems and semiconductor equipment.
The fuse has a rated current of 40 A.
The D221010 has a rated voltage of 690 V.
The gRB operating class provides full-range protection for battery systems by protecting against both overloads and short-circuit faults.
It is widely used in battery energy storage systems, UPS systems, industrial converters, renewable energy installations and semiconductor power circuits.
Mersen Protistor® battery and semiconductor fuses are trusted worldwide by OEMs, renewable energy specialists and industrial engineers for dependable protection of critical power electronic systems.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.