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MERSEN FUSE CC12 SRG 72 QF 400 D72SG120V400QF
MPN: P079432
Alt. SKU: D72SG120V400QF
Why Choose the Square Body High-Speed Fuse Protistor® Size 72 aR 1200VDC IEC 400A With Striker L Brackets?
Engineered for demanding DC circuit protection, this 400A, 1200VDC high-speed fuse delivers rapid response to overcurrent events, ensuring reliable safeguarding of sensitive power electronics and semiconductor components. The aR characteristic optimises protection for high fault currents while minimising energy let-through.
Featuring robust striker L brackets for secure installation and remote signalling, this fuse complies with IEC standards, making it ideal for critical industrial applications such as power conversion, drives, and renewable energy systems.
Technical Specifications
- Item number: P079432
- Catalogue No: D72SG120V400QF
- Description: Square Body High-Speed Fuse Protistor® Size 72 aR 1200VDC IEC 400A With Striker L Brackets
- EAN/UPC Code: 3605340033984
- Rated voltage DC IEC: 1200 V
- Ampere Rating: 400 A
- RoHS Compliant: Yes
- AC or DC: DC
- Speed/Characteristic: aR
- Fuse Size: 72
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 182 kA²s
- Max. Rated Breaking Capacity DC: 100 kA
- Design Details: SRG
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Copper
- Connection/Terminal Type: L Brackets
- Product Width: 60 mm
- Product Length: 163 mm
- Product Height: 76.5 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.15 kg
- Sell Pack Width: 130 mm
- Sell Pack Length: 200 mm
- Sell Pack Height: 95 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.15 kg
- Power Dissipation at Rated Current Value: 129 W
Product Code: P079432
Key Benefits
- High-speed aR characteristic ensures fast and reliable protection of sensitive semiconductor devices.
- Robust ceramic body provides excellent insulation and mechanical strength.
- Striker L bracket indication system allows for easy and safe remote signalling of fuse status.
- Bolted mounting ensures secure and stable installation in demanding industrial environments.
- Complies with IEC standards for quality and safety assurance.
- High breaking capacity (100 kA) suitable for high fault current applications.
Compatibility
This fuse is compatible with industrial DC power systems requiring high-speed semiconductor protection, including power converters, variable speed drives, photovoltaic inverters, and other renewable energy equipment. It fits fuse holders and switchgear designed for Size 72 fuses with bolted mounting and L bracket terminals.
Applications
- Power conversion systems
- Variable speed motor drives
- Photovoltaic and renewable energy inverters
- Semiconductor device protection
- Industrial DC power distribution
- Battery protection in energy storage systems
Frequently Asked Questions
What does the aR characteristic mean?
The aR characteristic indicates a high-speed fuse designed to protect semiconductor devices by quickly interrupting high fault currents while allowing for controlled let-through energy.
Can this fuse be used in AC circuits?
No, this fuse is specifically rated for DC applications at 1200 VDC and is not suitable for AC circuits.
How does the striker indication system work?
The striker indication system uses a mechanical striker that activates when the fuse blows, enabling remote signalling of fuse status for maintenance and safety purposes.
Is this fuse RoHS compliant?
Yes, this product is RoHS compliant, ensuring it meets environmental and safety standards.
Common Search Terms
high-speed fuse, semiconductor protection fuse, 1200V DC fuse, 400A fuse, aR fuse characteristic, striker indication fuse, Size 72 fuse, bolted mounting fuse, industrial DC fuse, Protistor fuse
| Manufacturer Part Number | P079432 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340033984 |
| Height | 163mm |
| Width | 60mm |
| Depth | 76.5mm |
| HS Code | 85351000 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | D72SG120V400QF |
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