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MERSEN FUSE A 070 URD 33 KI 0900 A070URD33KI0900
MPN: B300243
Alt. SKU: A070UD33KI900
Special Price
£147.84
£123.20
Regular Price
£268.80
MERSEN FUSE A 070 URD 33 KI 0900 A070URD33KI0900 is available to buy in increments of 3
Why Choose the Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 900A With Striker Slotted Blades (A070UD33KI900)?
Engineered for demanding industrial environments, the Square Body High-Speed Fuse Protistor® delivers precise, ultra-fast protection for power semiconductor devices, supporting operating voltages up to 690VAC (IEC) and 700VAC (UL) with a robust 900A current rating. The inclusion of a striker and slotted blade configuration ensures reliable visual fault indication and straightforward integration into electrical systems.
Trusted for critical applications, this fuse guarantees superior current-limiting performance, enhanced operational safety, and compliance with IEC and UL standards. Its high interrupting capacity and durable construction make it an ideal choice for safeguarding inverter drives, UPS systems, and other high-reliability installations.
Product Code: B300243
Key Benefits
- Ultra-fast protection for sensitive power semiconductor devices.
- High interrupting capacity of 200 kA ensures safety in fault conditions.
- Visual fault indication via striker mechanism for quick diagnostics.
- Robust ceramic body providing excellent durability and insulation.
- Compliance with IEC and UL standards for reliable performance.
- Silver-plated copper terminals with slotted blades for secure connections.
Compatibility
This fuse is compatible with industrial electrical systems requiring high-speed semiconductor protection, including inverter drives, uninterruptible power supplies (UPS), and other critical power electronics operating at voltages up to 700VAC.
Applications
- Protection of power semiconductor devices in industrial drives.
- Safeguarding UPS and power backup systems.
- Use in high-reliability electrical installations requiring fast-acting fuses.
- Integration into control panels and switchgear with bolted mounting.
Technical Specifications
- Item number: B300243
- Catalogue No: A070UD33KI900
- Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 900A With Striker Slotted Blades short
- EAN/UPC Code: 3605340325591
- Rated voltage AC UL: 700 V
- Rated voltage AC IEC: 690 V
- Ampere Rating: 900 A
- RoHS Compliant: Yes
- AC or DC: AC
- Speed/Characteristic: aR
- Fuse Size: 33
- Mounting: Bolted
- Clearing I2t At Rated Voltage: 770 kA²s
- Melting I2t: 130 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 Copper
- Connection/Terminal Type: Slotted Blades
- Product Width: 73 mm
- Product Length: 134 mm
- Product Height: 78.5 mm
- Sell Pack Quantity: 3 EA
- Sell Pack Weight: 2.5353 kg
- Sell Pack Width: 145 mm
- Sell Pack Length: 245 mm
- Sell Pack Height: 90 mm
- Product group: Semiconductor Protection Fuses
- Body/Insulating Material: Ceramic
- Product Weight: 0.8451 kg
- Power Dissipation at Rated Current Value: 135 W
Frequently Asked Questions
What does the "aR" speed/characteristic mean?
The "aR" rating indicates a partial-range semiconductor fuse designed to provide fast-acting protection specifically for power semiconductor devices, limiting damage during short circuits.
Is this fuse suitable for DC applications?
No, this fuse is rated for AC applications only, as specified in the technical specifications.
How does the striker indication system work?
The striker mechanism provides a visual indication by triggering a mechanical flag or pop-out indicator when the fuse has operated, allowing quick identification of a blown fuse.
Can this fuse be mounted in standard fuse holders?
This fuse requires bolted mounting due to its size and design; it is not compatible with standard plug-in fuse holders.
Common Search Terms
High-speed fuse, semiconductor protection fuse, aR fuse, 900A fuse, 690VAC fuse, 700VAC fuse, striker fuse, slotted blade fuse, industrial fuse, bolted mounting fuse, ceramic body fuse, power electronic protection.
| Manufacturer Part Number | B300243 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340325591 |
| Height | 134mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD33KI900 |
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