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MERSEN FUSE 6,9 URD 33 E F 0500 6,9URD33EF0500
High-speed Protistor® fuse offering reliable circuit protection for industrial and power electronics applications up to 500A with striker indication and open slot blades.
£130.61
Why Choose the Mersen Z300218 Protistor® High-Speed Fuse?
The Mersen Z300218 is an industrial high-speed semiconductor fuse developed to protect sensitive power electronic components against damaging short-circuit currents. As part of the established Mersen Protistor® range, it is intended for power conversion, motor control and industrial automation systems where rapid fault interruption is essential.
The Z300218 provides current-limiting protection that helps reduce the thermal and mechanical energy transferred to semiconductor devices during an electrical fault. Its high-speed operating performance supports the protection of IGBTs, thyristors, diodes, rectifiers and associated electronic assemblies, helping minimise component damage and unplanned equipment downtime.
Designed for demanding industrial applications, the Mersen Z300218 is suitable for integration into compatible fuse assemblies used in variable frequency drives, converters, inverters, uninterruptible power supplies and other high-power electronic equipment. The rated current, voltage, dimensions and terminal configuration should be verified against the original fuse marking or official Mersen technical documentation before installation.
Key Advantages
- High-speed semiconductor protection fuse for industrial power electronics.
- Rapid short-circuit interruption helps protect sensitive switching devices.
- Current-limiting performance helps reduce damaging let-through energy.
- Suitable for protecting IGBTs, thyristors, diodes and rectifier assemblies.
- Robust construction for demanding industrial operating environments.
- Helps improve equipment reliability and reduce maintenance downtime.
Key Features
- Mersen Protistor® high-speed fuse technology.
- Manufacturer reference: Z300218.
- Fast operating response for semiconductor circuit protection.
- High current-limiting capability during short-circuit conditions.
- Designed for coordinated protection of power semiconductor devices.
- Suitable for industrial power conversion and automation equipment.
- Industrial-grade construction for reliable long-term operation.
- Suitable for OEM, maintenance and replacement applications.
Reliable Protection for Power Electronics
High-speed semiconductor fuses interrupt fault currents more rapidly than conventional general-purpose fuses. This fast response limits the electrical energy reaching sensitive semiconductor components, where even a brief short circuit can permanently damage switching devices and associated circuitry.
Mersen Protistor® fuses are developed for coordinated protection within industrial power electronic systems. Selecting the correct fuse reference, electrical ratings and connection format helps protect valuable equipment while supporting safe and dependable operation across drives, converters and other high-power electronic assemblies.
Typical Applications
- Variable frequency drives and industrial motor drives.
- Power converters and rectifier systems.
- Industrial inverters and switching equipment.
- Uninterruptible power supplies and backup power systems.
- Renewable energy power conversion equipment.
- 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 | Z300218 | |
| Catalogue No | PC33UD69V500EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 500A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340325096 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 500 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 110 kA²s | |
| Melting I2t | 19 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 | Open Slot Blades | |
| Product Width | 73 mm | |
| Product Length | 126 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.556 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 245 mm | |
| Sell Pack Height | 100 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.852 kg | |
| Power Dissipation at Rated Current Value | 105 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen Z300218 used for?
The Mersen Z300218 is a high-speed fuse used to protect sensitive power semiconductor components against damaging short-circuit currents.
Which components can the Z300218 protect?
It is intended for protecting power electronic components such as IGBTs, thyristors, diodes and rectifier assemblies.
Where is this fuse typically installed?
It is typically installed in industrial drives, converters, inverters, UPS equipment and other semiconductor-based power systems.
Can a general-purpose fuse replace the Mersen Z300218?
No. A replacement should match the complete Mersen reference, current and voltage ratings, operating characteristic, dimensions and terminal arrangement.
How should the correct electrical ratings be confirmed?
The current rating, voltage rating, breaking capacity and connection format should be checked against the original fuse marking, 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.
