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MERSEN FUSE CC 7,5 GRC 122 TT F 0400 C090438
MPN: C090438
Alt. SKU: D122GC75V400TF
Why Choose the Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 400A With Striker Flush Ends Metric Threads?
Engineered for reliable protection of DC circuits up to 750V and 400A, this Protistor® fuse offers exceptional current-limiting performance and fast response to critical overcurrents. Its gR-class design ensures comprehensive safeguarding for power semiconductors and sensitive equipment.
The robust square body with flush ends, integrated striker for remote indication, and metric threads guarantee secure installation and simplified maintenance in demanding industrial applications, fully compliant with IEC standards.
Product Code: C090438
Key Benefits
- High-speed gR characteristic ensures fast and reliable protection of sensitive semiconductor devices.
- Flush ends with silver-plated brass terminals provide excellent conductivity and secure connections.
- Integrated striker indication system allows for easy remote fault signalling and maintenance.
- Robust ceramic body with metric threads ensures durability and ease of installation in industrial environments.
- Complies with IEC standards guaranteeing quality and safety in demanding DC applications.
Compatibility
This fuse is compatible with DC electrical systems up to 750 V and 400 A, particularly suited for semiconductor protection in industrial power electronics, renewable energy systems, and DC motor drives. It fits fuse holders and switchgear designed for Size 122 fuses with bolted mounting and metric threaded connections.
Applications
- Protection of power semiconductors such as IGBTs and thyristors in industrial drives.
- DC circuit protection in photovoltaic solar power installations.
- Battery protection in uninterruptible power supplies (UPS) and energy storage systems.
- Protection of DC traction systems and electric vehicle charging stations.
- General industrial DC power distribution and control panels.
Technical Specifications
- Item number: C090438
- Catalogue No: D122GC75V400TF
- Description: Square Body High-Speed Fuse Protistor® Size 122 gR 750VDC IEC 400A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340090017
- Rated voltage DC IEC: 750 V
- Ampere Rating: 400 A
- RoHS Compliant: Yes
- AC or DC: DC
- Speed/Characteristic: gR
- Fuse Size: 122
- Mounting: Bolted
- Melting I2t: 50.94 kA²s
- Max. Rated Breaking Capacity DC: 100 kA
- Design Details: gRC
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 59 mm
- Product Length: 131 mm
- Product Height: 63 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 1.43 kg
- Sell Pack Width: 130 mm
- Sell Pack Length: 200 mm
- Sell Pack Height: 90 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 1.43 kg
- Power Dissipation at Rated Current Value: 74.5 W
Frequently Asked Questions
What does the gR speed characteristic mean?
The gR characteristic indicates a full-range semiconductor fuse with high-speed operation, designed to protect power semiconductors and sensitive DC circuits by interrupting overcurrents quickly and safely.
Can this fuse be used in AC applications?
No, this fuse is specifically designed and rated for DC applications up to 750 V. Using it in AC circuits is not recommended and may compromise safety and performance.
How does the striker indication system work?
The integrated striker mechanism activates upon fuse operation, providing a mechanical signal that can be used for remote indication of fuse failure, facilitating timely maintenance and replacement.
What type of mounting is required for this fuse?
This fuse requires bolted mounting with metric threads to ensure a secure and reliable connection in the fuse holder or switchgear.
Common Search Terms
High-speed DC fuse, semiconductor protection fuse, Protistor fuse 400A, 750VDC fuse, gR fuse size 122, fuse with striker indication, ceramic body fuse, industrial DC fuse, bolted mounting fuse, flush end fuse.
| Manufacturer Part Number | C090438 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 3605340090017 |
| Height | 131mm |
| Width | 59mm |
| Depth | 63mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | D122GC75V400TF |
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