Approvals & Standards
- UL Recognized: UL File: E60314; DC: 50-600A, 700VDC
- Power Cycling & Vibration
- REACH/RoHS compliant
Key features & benefits
Electrification in construction, marine, agriculture, manufacturing, mining, and other industries, in addition to transportation, is a critical trend in cleaner energy. The D70QS North American style round body high-speed fuse series is Mersen’s next evolution for high-power conversion applications protection for those industries shifting to Direct Current(DC) systems today. The D70QS fuse series is specifically designed to reduce the I²t, peak let-through current, and arc voltages during fault conditions to protect applications such as battery charging systems and other DC components like relays and contactors.
More specificationsApplications
- High Power battery charging and management systems protection
- Energy Storage Systems (ESS)
- Electrical Energy Storage (EES)
- Battery Disconnect Unit (BDU)
- Battery pack protection
- DC Fast-Charging station for EV applications
- Backup protection for
- DC relay/disconnector/switch
- Protection of 700VDC or less, UPS and inverters
Documents & Resources
Datasheet
Drawings
Curves
Compliance
Product Specifications
Item Number
D70QS300-4
Catalog number
D70QS300-4
Description
DC Fuse 700VDC UL 300A Max.Bolted
EAN/UPC code
0782001509026
Rated voltage DC UL
700 V
Rated current
300 A
ROHS Compliant
Yes
AC or DC
DC
Speed/Characteristic
High Speed
Mounting
Bolted
Max. Rated Breaking Capacity DC
20 kA @ 700 V, L/R ≤ 1 ms
Minimum breaking capacitiy (MBC)
1580 A
Power Dissipation at Intermediate Current Value
8.8 W @ 0.5 In
Contact materials
Tin-Plated Copper
Connection/Terminal Type
Blade
Body/Insulating Material
GMG
Product Weight
0.3084 kg
Product Diameter
38.1 mm
Product Length
110.2 mm
Sell Pack Quantity
10 EA
Sell Pack Weight
3.2386 kg
Sell Pack Width
111.3 mm
Sell Pack Length
196.8 mm
Sell Pack Height
76.2 mm