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MERSEN FUSE 6,9 GRB 72 D11A 0550 6,9GRB72D11A0550
MPN: L301724
Alt. SKU: PC72GB69V550D1A
Special Price
£133.63
£111.36
Regular Price
£242.96
MERSEN FUSE 6,9 GRB 72 D11A 0550 6,9GRB72D11A0550 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 gR 690VAC IEC 550A With Striker DIN 110 Blades PC72GB69V550D1A?
Engineered for demanding industrial environments, this high-speed Protistor® fuse offers reliable short-circuit protection up to 550A at 690VAC. Its gR performance ensures comprehensive protection for power semiconductor devices, minimising downtime and safeguarding critical equipment.
Featuring a striker for remote signalling and robust DIN 110 blades for secure installation, this Size 72 fuse complies with IEC standards for assured safety and compatibility. Upgrade with confidence to enhance system performance and operational safety.
Technical Specifications
- Item number: L301724
- Catalogue No: PC72GB69V550D1A
- Description: Square Body High-Speed Fuse Protistor® Size 72 gR 690VAC IEC 550A With Striker DIN 110 Blades
- EAN/UPC Code: 3605340345766
- Rated voltage AC IEC: 690 V
- Ampere Rating: 550 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: gR
- Fuse Size: 72
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 495 kA²s
- Melting I2t: 84.1 kA²s
- AC Max I.R./Breaking Capacity: I1: 150 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: DIN 110 Blades
- Product Width: 59 mm
- Product Length: 133.4 mm
- Product Height: 63 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.1999 kg
- Sell Pack Width: 145 mm
- Sell Pack Length: 73 mm
- Sell Pack Height: 195 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.7333 kg
- Power Dissipation at Rated Current Value: 78 W
Product Code: L301724
Key Benefits
- High-speed gR characteristic ensures rapid interruption of short circuits, protecting sensitive semiconductor devices.
- Robust ceramic body provides excellent insulation and durability in harsh industrial environments.
- Striker indication system allows for easy remote signalling of fuse operation, improving maintenance efficiency.
- Silver-plated copper terminals with DIN 110 blades ensure secure and reliable electrical connections.
- Complies with IEC standards for safety and performance, facilitating seamless system integration.
Compatibility
This fuse is compatible with industrial electrical systems requiring Size 72 high-speed semiconductor protection fuses rated at 690VAC and 550A. It fits fuse holders and switchgear designed for DIN 110 blade connections and bolted mounting, making it suitable for upgrades or replacements in existing installations.
Applications
- Protection of power semiconductor devices such as thyristors, diodes, and transistors.
- Industrial motor drives and variable frequency drives (VFDs).
- Power supply units and rectifier circuits.
- Renewable energy systems including solar inverters.
- General industrial electrical protection requiring high-speed fuse characteristics.
Frequently Asked Questions
What does the gR characteristic mean for this fuse?
The gR characteristic indicates that the fuse is designed for semiconductor protection, providing high-speed interruption of short circuits while allowing normal circuit operation without nuisance blowing.
Can this fuse be used in DC circuits?
No, this particular fuse is rated for AC applications only, as specified by its 690 V AC IEC rating.
What is the purpose of the striker indication system?
The striker provides a mechanical indication and remote signalling capability when the fuse has operated, allowing quick identification of blown fuses without direct inspection.
Is this fuse RoHS compliant?
Yes, the fuse is RoHS compliant, ensuring it meets environmental and safety standards for hazardous substances.
Common Search Terms
high-speed fuse, semiconductor protection fuse, Size 72 fuse, 690VAC fuse, 550A fuse, Protistor fuse, gR fuse, DIN 110 blade fuse, striker fuse, industrial electrical fuse
| Manufacturer Part Number | L301724 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340345766 |
| Height | 133.4mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | PC72GB69V550D1A |
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