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MERSEN FUSE 6,9 URD 31 TT F 0400 6,9URD31TTF0400
MPN: R300004
Alt. SKU: PC31UD69V400TF
Special Price
£80.17
£66.81
Regular Price
£145.76
MERSEN FUSE 6,9 URD 31 TT F 0400 6,9URD31TTF0400 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Flush ends metric threads PC31UD69V400TF?
Engineered for demanding industrial applications, this Protistor® high-speed fuse offers reliable protection for semiconductors and power electronics up to 690VAC (IEC) and 700VAC (UL), with a robust 400A operating current. The square body Size 31 design enables efficient heat dissipation and ease of integration into modern systems.
The built-in striker with flush ends and metric threads ensures precise and secure installation, supporting advanced safety interlocks and quick fault indication. Certified to stringent IEC and UL standards, this fuse guarantees dependable circuit protection and maximised equipment uptime.
Product Code: R300004
Key Benefits
- High-speed aR characteristic ensures rapid disconnection of semiconductor faults.
- Robust ceramic body provides excellent insulation and thermal stability.
- Flush end silver-plated brass terminals with metric threads allow secure and reliable mounting.
- Integrated striker indication system offers clear and immediate fault indication.
- Complies with IEC and UL standards for global application compatibility.
- High breaking capacity of 200 kA ensures safe interruption of high fault currents.
Compatibility
This fuse is compatible with industrial semiconductor protection systems requiring Size 31 aR fuses rated up to 400A and voltages up to 700VAC. It fits bolted mounting fuse holders designed for Protistor® Size 31 fuses with metric thread connections and striker indication.
Applications
- Protection of power semiconductors such as thyristors, diodes, and transistors.
- Industrial motor drives and inverters.
- Power electronic converters and rectifiers.
- High-speed switching circuits in automation systems.
- Renewable energy systems including solar and wind power inverters.
Technical Specifications
- Item number: R300004
- Catalogue No: PC31UD69V400TF
- Description: Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340322286
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 400 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 31
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 110000 A²s
- Melting I2t: 19000 A²s
- AC Max I.R./Breaking Capacity: I1: 200 kA
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 51 mm
- Product Length: 50.6 mm
- Product Height: 56.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 1.1478 kg
- Sell Pack Width: 85 mm
- Sell Pack Length: 168 mm
- Sell Pack Height: 65 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.3826 kg
- Power Dissipation at Rated Current Value: 68 W
Frequently Asked Questions
What does the aR characteristic mean for this fuse?
The aR characteristic indicates a high-speed semiconductor protection fuse designed to clear short circuits rapidly while allowing normal operational currents without nuisance tripping.
Is this fuse suitable for DC applications?
No, this fuse is specifically rated for AC applications as indicated in the technical specifications.
How does the striker indication system work?
The striker indication system provides a mechanical indication of fuse operation by releasing a striker when the fuse element melts, allowing for quick visual or electrical fault detection.
Can this fuse be used in motor drive protection?
Yes, it is suitable for protecting power semiconductors in motor drives and inverter circuits.
Common Search Terms
high-speed fuse, Protistor fuse, semiconductor protection fuse, Size 31 fuse, 400A fuse, 690VAC fuse, 700VAC fuse, aR fuse, striker indication fuse, bolted fuse, ceramic body fuse, industrial fuse
| Manufacturer Part Number | R300004 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340322286 |
| Height | 50.6mm |
| Width | 51mm |
| Depth | 56.5mm |
| HS Code | 85361090 |
| Country of Manufacture | France |
| Manufacturer | Mersen |
| Alternative Product SKU | PC31UD69V400TF |
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