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MERSEN FUSE A 070 URD 33 KI 0550 A070URD33KI0550
MPN: X300239
Alt. SKU: A070UD33KI550
Special Price
£111.22
£92.68
Regular Price
£202.20
MERSEN FUSE A 070 URD 33 KI 0550 A070URD33KI0550 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 Slotted Blades?
Engineered for demanding industrial applications, this high-speed fuse offers reliable protection for semiconductor devices, supporting up to 550A and 700VAC. Its aR-class performance ensures rapid fault clearing, minimising equipment downtime and safeguarding sensitive components.
The integrated striker and slotted blade design enable straightforward visual indication and convenient installation, meeting both IEC and UL standards for global compatibility. Trusted for operational safety and high interrupting capacity, it is ideal for modern power conversion and protection systems.
Product Code: X300239
Key Benefits
- High-speed aR characteristic for rapid fault clearing.
- Supports high current ratings up to 550A and voltages up to 700VAC.
- Integrated striker indication system for easy visual fault detection.
- Silver-plated copper slotted blade terminals ensure reliable connections.
- Compliance with IEC and UL standards for global application.
- Ceramic body provides excellent insulation and durability.
Compatibility
This fuse is compatible with semiconductor protection systems requiring size 33 aR fuses, suitable for industrial equipment operating at rated voltages of 690VAC (IEC) and 700VAC (UL). It fits bolted mounting setups and works seamlessly within power conversion and protection circuits.
Applications
- Protection of semiconductor devices such as thyristors and diodes.
- Industrial power converters and inverters.
- Motor drives and variable speed controllers.
- High-speed switching circuits requiring fast fault isolation.
- General industrial electrical equipment requiring high interrupting capacity.
Technical Specifications
- Item number: X300239
- Catalogue No: A070UD33KI550
- Description: Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 550A With Striker Slotted Blades short
- EAN/UPC Code: 3605340325515
- 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 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: 110 W
Frequently Asked Questions
What does the aR characteristic mean?
The aR characteristic indicates a high-speed fuse designed for semiconductor protection, capable of rapidly interrupting short-circuit currents to protect sensitive components.
Is this fuse suitable for DC applications?
No, this fuse is rated for AC use only, as specified in the technical specifications.
How does the striker indication system work?
The striker provides a visual indication by triggering a mechanical signal when the fuse has blown, allowing for quick identification and replacement.
Can this fuse be used in UL and IEC compliant systems?
Yes, it meets both IEC and UL rated voltage and safety standards, making it suitable for global applications.
Common Search Terms
high-speed fuse, semiconductor protection fuse, aR fuse, size 33 fuse, 550A fuse, 700VAC fuse, striker fuse, slotted blade fuse, ceramic fuse, industrial fuse, power converter fuse
| Manufacturer Part Number | X300239 |
|---|---|
| Packed Quantity | 3 |
| Barcode | 3605340325515 |
| Height | 134mm |
| Width | 73mm |
| Depth | 78.5mm |
| HS Code | 85361090 |
| Manufacturer | Mersen |
| Alternative Product SKU | A070UD33KI550 |
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