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MERSEN FUSE CC 4,5 GRB 72 EF 0550 D72GB45V550EF
MPN: Q302694
Alt. SKU: D72GB45V550EF
MERSEN FUSE CC 4,5 GRB 72 EF 0550 D72GB45V550EF is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 gR 450VDC IEC 500VDC UL 550A With Striker Open Slot Blades D72GB45V550EF?
This high-speed fuse offers fast, reliable protection for demanding DC circuits, rated at 450V DC (IEC) and 500V DC (UL) with a robust 550A breaking capacity. Its square body design and open slot blades with striker ensure secure installation, rapid fault indication, and compatibility with industrial power electronics.
Engineered for precision and durability, the Protistor® D72GB45V550EF safeguards sensitive components against overloads and short circuits, helping to minimise downtime and maximise system reliability in critical industrial applications.
Technical Specifications
- Item number: Q302694
- Catalogue No: D72GB45V550EF
- Description: Square Body High-Speed Fuse Protistor® Size 72 gR 450VDC IEC 500VDC UL 550A With Striker Open Slot Blades
- EAN/UPC Code: 3605340355321
- Rated voltage DC UL: 500 V
- Rated voltage DC IEC: 450 V
- Ampere Rating: 550 A
- RoHS Compliant: Yes
- AC or DC: DC
- Speed/Characteristic: gR
- Fuse Size: 72
- Mounting: Bolted
- Melting I2t: 84050 A²s
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: Open Slot Blades
- Product Width: 59 mm
- Product Length: 133.4 mm
- Product Height: 63 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.274 kg
- Sell Pack Width: 157 mm
- Sell Pack Length: 202 mm
- Sell Pack Height: 80 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.758 kg
- Power Dissipation at Rated Current Value: 72 W
Product Code: Q302694
Key Benefits
- High-speed protection for sensitive semiconductor devices
- Reliable operation at up to 500 V DC (UL) and 450 V DC (IEC)
- Robust 550A current rating for demanding industrial applications
- Striker indication system for rapid fault detection
- Durable ceramic body with silver-plated copper terminals for excellent conductivity and longevity
- Bolted mounting ensures secure and stable installation
Compatibility
This fuse is compatible with industrial power electronics systems requiring high-speed DC protection, particularly semiconductor devices such as IGBTs and diodes. It fits fuse holders designed for size 72 fuses with open slot blade terminals and bolted mounting arrangements.
Applications
- Industrial motor drives and inverters
- Renewable energy systems including solar and wind power converters
- Power supply units for critical industrial equipment
- Semiconductor protection in automation and control systems
- Battery protection in DC power distribution networks
Frequently Asked Questions
What does the gR characteristic mean?
The gR characteristic indicates that the fuse is a full-range semiconductor fuse, designed to protect both overloads and short circuits in semiconductor devices.
Can this fuse be used in AC circuits?
No, this fuse is specifically designed for DC applications as indicated by its rated DC voltages. Using it in AC circuits is not recommended.
What is the purpose of the striker indication system?
The striker provides a visual indication when the fuse has blown, allowing for quick identification and replacement.
Is this fuse RoHS compliant?
Yes, the product is RoHS compliant, ensuring it meets environmental and safety standards.
Common Search Terms
High-speed fuse, semiconductor fuse, DC fuse 550A, Protistor fuse size 72, gR characteristic fuse, 450V DC fuse, 500V UL fuse, striker indication fuse, industrial DC protection fuse, bolted mount fuse
| Manufacturer Part Number | Q302694 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340355321 |
| Height | 133.4mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | D72GB45V550EF |
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