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MERSEN FUSE 6,9 URD 30 D11 A 0350 6,9URD30D11A0350
High-speed fuse delivering superior protection for power semiconductor devices with integrated striker indication and DIN 110 blade terminals, rated 350A at 690VAC IEC and 700VAC UL.
£75.08
Why Choose the Mersen Z300126 Protistor® High-Speed Fuse?
The Mersen Z300126 is an industrial high-speed semiconductor fuse designed to protect sensitive power electronic components against damaging short-circuit currents. As part of the established Mersen Protistor® fuse range, it is suitable for demanding power conversion and automation equipment where rapid fault interruption is essential.
The Z300126 helps limit the thermal and mechanical energy passed to semiconductor devices during an electrical fault. Its fast operating performance can reduce the risk of damage to IGBTs, thyristors, diodes and rectifier assemblies, supporting improved equipment reliability and reduced maintenance downtime.
Built for industrial power applications, the Mersen Z300126 features robust fuse construction and is intended for integration into compatible fuse holders or bolted fuse assemblies. It is commonly specified for motor drives, converters, rectifiers, uninterruptible power supplies and other systems containing high-value power electronics.
Key Advantages
- High-speed semiconductor protection fuse for industrial power electronics.
- Rapid fault interruption helps protect sensitive electronic components.
- Low let-through energy helps minimise thermal stress during short circuits.
- Suitable for IGBTs, thyristors, diodes and rectifier assemblies.
- Robust construction for demanding industrial environments.
- Supports improved system reliability and reduced equipment downtime.
Key Features
- Mersen Protistor® high-speed fuse technology.
- Manufacturer reference: Z300126.
- Fast-acting performance for semiconductor circuit protection.
- High current-limiting capability.
- Designed for industrial power conversion equipment.
- Suitable for coordinated protection of power semiconductor devices.
- Industrial-grade fuse body and connection system.
- Suitable for OEM, replacement and maintenance applications.
Reliable Protection for Power Electronics
High-speed fuses operate more rapidly than conventional general-purpose fuses, limiting the fault energy that reaches sensitive semiconductor components. This characteristic is particularly important in power electronic systems, where even a brief high-current fault can permanently damage switching devices and associated circuitry.
The Mersen Protistor® range is designed for applications requiring dependable coordination between the fuse and semiconductor components. Correct fuse selection helps protect valuable equipment, simplify maintenance and support reliable operation across industrial automation and power conversion systems.
Typical Applications
- Variable frequency drives and industrial motor drives.
- Power converters and rectifier systems.
- Uninterruptible power supplies.
- Industrial inverters and power control equipment.
- Renewable energy conversion systems.
- Industrial automation and electrical control panels.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | Z300126 | |
| Catalogue No | PC30UD69V350D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 350A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340323719 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 350 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 30 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 86 kA²s | |
| Melting I2t | 15.5 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 110 Blades | |
| Product Width | 40 mm | |
| Product Length | 134.6 mm | |
| Product Height | 48 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.8949 kg | |
| Sell Pack Width | 135 mm | |
| Sell Pack Length | 145 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.2983 kg | |
| Power Dissipation at Rated Current Value | 60 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen Z300126 used for?
The Mersen Z300126 is a high-speed fuse used to protect sensitive power semiconductor components against damaging short-circuit currents.
Which components can this fuse protect?
It is suitable for protecting power electronic components such as IGBTs, thyristors, diodes and rectifier assemblies.
Where is the Mersen Z300126 typically installed?
It is typically installed in industrial drives, converters, UPS equipment, inverters and other power electronic systems.
Can a standard industrial fuse replace the Z300126?
No. A replacement should match the complete Mersen reference, electrical ratings, operating characteristic, dimensions and terminal arrangement to maintain correct semiconductor protection.
How should the correct electrical rating be confirmed?
The current rating, voltage rating and connection style should be checked against the original fuse label, equipment documentation or official Mersen technical data before installation.
Trusted for Industrial Power Protection
Mersen Protistor® high-speed fuses are widely specified by equipment manufacturers, panel builders and maintenance engineers for dependable protection of critical power electronic systems.
