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MERSEN FUSE 6,9 URD 33 TT F 0550 W300077
MPN: W300077
Alt. SKU: PC33UD69V550TF
Special Price
£103.36
£86.13
Regular Price
£187.92
MERSEN FUSE 6,9 URD 33 TT F 0550 W300077 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 550A With Striker Flush Ends Metric Threads PC33UD69V550TF?
Engineered for demanding industrial applications, this Protistor® high-speed fuse offers precise protection for sensitive power electronics, with a robust 550A current rating and compliance to IEC 690VAC and UL 700VAC standards. Its square body design ensures compact integration and reliable thermal cycling performance in high-stress environments.
The integrated striker and flush ends with metric threads enable straightforward installation, visual trip indication, and compatibility with modern systems. Choose this fuse for enhanced equipment safety and minimal downtime in critical power distribution and semiconductor protection applications.
Product Code: W300077
Key Benefits
- High-speed aR characteristic ensures rapid interruption of short-circuits and overloads.
- Robust 550A rating suitable for demanding industrial and semiconductor protection.
- Compliance with IEC 690VAC and UL 700VAC standards guarantees international safety and performance.
- Integrated striker provides clear visual trip indication for easy maintenance.
- Flush ends with metric threads allow secure and straightforward bolted mounting.
- Ceramic body ensures excellent insulation and thermal resistance.
- Silver-plated brass terminals enhance conductivity and corrosion resistance.
Compatibility
This fuse is compatible with Size 33 Protistor® fuse holders and switchgear designed for high-speed semiconductor protection. Its bolted mounting and standard terminal design make it suitable for integration into existing industrial electrical panels and power distribution systems meeting IEC and UL standards.
Applications
- Protection of power semiconductors such as thyristors and diodes.
- Industrial motor drives and variable speed drives.
- Power supply units and inverters.
- Critical power distribution circuits requiring fast and reliable fault clearance.
- High-performance electrical installations demanding compact and robust fuse solutions.
Technical Specifications
- Item number: W300077
- Catalogue No: PC33UD69V550TF
- Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 550A With Striker Flush ends metric threads
- EAN/UPC Code: 3605340323139
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 550 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 33
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 155 kA²s
- Melting I2t: 27 kA²s
- AC Max I.R./Breaking Capacity: I1: 200 kA
- Design Details: Standard Terminal
- Indication System: Yes
- Indication System Type: Striker
- Connection/Terminal Material: Silver-Plated Brass
- Connection/Terminal Type: Flush ends
- Product Width: 73 mm
- Product Length: 50.6 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.4168 kg
- Sell Pack Width: 85 mm
- Sell Pack Length: 245 mm
- Sell Pack Height: 95 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.8056 kg
- Power Dissipation at Rated Current Value: 105 W
Frequently Asked Questions
What is the primary purpose of this high-speed fuse?
This fuse is designed to protect sensitive semiconductor devices and power electronics by rapidly interrupting fault currents, preventing damage to equipment.
Is this fuse suitable for DC applications?
No, this fuse is rated for AC applications only, as specified in the technical details.
How does the striker indication system work?
The integrated striker provides a visual indication by popping out when the fuse has blown, enabling quick identification and replacement.
Can this fuse be used in systems outside IEC and UL standards?
While designed to meet IEC and UL standards, compatibility with other systems should be verified based on voltage and current requirements.
Common Search Terms
high-speed fuse, Protistor fuse, semiconductor protection fuse, Size 33 fuse, 550A fuse, 690VAC fuse, 700VAC fuse, aR characteristic fuse, square body fuse, striker fuse, flush ends fuse, metric thread fuse, industrial fuse, bolted mount fuse
| Manufacturer Part Number | W300077 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340323139 |
| Height | 50.6mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | PC33UD69V550TF |
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