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MERSEN FUSE A070 URD 33 TTI 0450 A070UD33TTI450
MPN: X302171
Alt. SKU: A070UD33TTI450
Special Price
£94.93
£79.11
Regular Price
£172.61
MERSEN FUSE A070 URD 33 TTI 0450 A070UD33TTI450 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 450A With Striker Flush ends UNC threads A070UD33TTI450?
This high-speed fuse offers reliable circuit protection for demanding industrial and power electronic applications, with rapid operation and a rated voltage of up to 690VAC (IEC) and 700VAC (UL) at 450A. Its square body design, integrated striker for remote indication, and robust flush ends with UNC threads ensure secure installation and improved system safety.
Engineered to IEC and UL standards, the A070UD33TTI450 delivers superior current-limiting performance, reduces component stress during faults, and supports operational efficiency in critical environments. Choose this SKU for enhanced protection, durability, and compliance with international safety requirements.
Product Code: X302171
Key Benefits
- High-speed operation ensures rapid fault clearance to protect sensitive components.
- Rated for up to 700VAC (UL) and 690VAC (IEC), suitable for a wide range of industrial applications.
- Integrated striker indication system for quick fault detection and remote signalling.
- Flush ends with UNC threads provide secure and reliable bolted mounting.
- Ceramic body material offers excellent insulation and thermal resistance.
- Silver-plated brass terminals ensure optimal electrical conductivity and corrosion resistance.
- Compliant with RoHS directives, supporting environmentally responsible installations.
Compatibility
This fuse is compatible with standard size 33 fuse holders and bases designed for bolted mounting. It is suitable for use in semiconductor protection circuits and industrial power systems requiring high breaking capacity and fast-acting protection. Ensure the fuse holder accommodates the flush end terminals with UNC threads for proper installation.
Applications
- Protection of power electronic devices such as thyristors and diodes.
- Circuit protection in industrial motor drives and inverters.
- High-speed protection in semiconductor manufacturing equipment.
- Use in power distribution panels and control systems requiring fast fault clearance.
- Electrical protection in renewable energy systems and power converters.
Technical Specifications
- Item number: X302171
- Catalogue No: A070UD33TTI450
- Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 450A With Striker Flush ends UNC threads
- EAN/UPC Code: 3605340351286
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 450 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 33
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 87 kA²s
- Melting I2t: 13.45 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: 2.682 kg
- Sell Pack Width: 86 mm
- Sell Pack Length: 247 mm
- Sell Pack Height: 94 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.894 kg
- Power Dissipation at Rated Current Value: 84 W
Frequently Asked Questions
What does the 'aR' speed characteristic mean?
The 'aR' rating indicates a high-speed fuse designed specifically for semiconductor protection, providing rapid interruption of short-circuit currents to protect sensitive devices.
Can this fuse be used with DC circuits?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
What is the purpose of the striker indication system?
The striker indication system provides a visual and remote signal when the fuse has operated (blown), enabling quick fault identification and maintenance.
Are the fuse terminals compatible with standard holders?
Yes, the fuse features flush ends with UNC threads designed for bolted mounting in standard size 33 fuse holders.
Is this fuse RoHS compliant?
Yes, the fuse complies with RoHS directives, ensuring it meets environmental and safety standards.
Common Search Terms
high-speed fuse, semiconductor protection fuse, size 33 fuse, 450A fuse, 690VAC fuse, 700VAC fuse, aR fuse, fuse with striker, bolted fuse, ceramic body fuse, industrial fuse, power electronic protection
| Manufacturer Part Number | X302171 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340351286 |
| Height | 50.6mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD33TTI450 |
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