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MERSEN FUSE 6,9 URT 217/125 BS217UT69V125
Why Choose the MERSEN FUSE 6,9 URT 217/125 BS217UT69V125?
£62.71
Why Choose the Mersen H235987 High Speed Semiconductor Fuse?
The Mersen H235987 is a premium high speed semiconductor fuse designed to provide rapid protection for sensitive power electronic equipment operating in demanding industrial environments. Manufactured as part of the renowned Mersen Protistor® range, this fuse delivers exceptional fault current limitation to protect semiconductors including thyristors, IGBTs, diodes and rectifiers from catastrophic short circuits.
Engineered for high reliability and consistent performance, the H235987 helps minimise equipment damage, reduce costly downtime and extend the service life of valuable industrial assets. Its compact blade-type construction enables quick installation into compatible fuse bases and switchgear assemblies used throughout automation and power conversion systems.
Featuring a 125 A current rating and a 690 V AC voltage rating, the H235987 is an excellent choice for protecting variable frequency drives, UPS systems, industrial converters, motor control equipment and renewable energy installations requiring fast acting semiconductor protection.
Key Advantages
- High speed semiconductor fuse for protecting sensitive electronic components.
- 125 A current rating suitable for industrial power applications.
- 690 V AC voltage rating for demanding electrical systems.
- Outstanding current limiting performance during fault conditions.
- High breaking capacity reduces damage to expensive equipment.
- Compact blade design for straightforward installation and maintenance.
Key Features
- Mersen Protistor® semiconductor protection fuse.
- 125 A rated current.
- 690 V AC rated voltage.
- Ultra-fast operating characteristic for semiconductor protection.
- Blade contact design.
- Low energy let-through during fault interruption.
- Suitable for industrial power electronic equipment.
- Designed for installation in compatible fuse holders.
Reliable Protection for Critical Power Electronics
High speed semiconductor fuses are specifically developed to interrupt fault currents before permanent damage can occur to sensitive electronic components. Their rapid response protects valuable equipment while helping maintain production uptime and reducing maintenance costs.
The Mersen Protistor® family is trusted worldwide in industrial automation, renewable energy, motor control and power conversion applications where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Industrial rectifiers.
- UPS systems.
- Power converters and inverters.
- Motor control centres.
- Renewable energy and industrial automation equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Protistor® | |
| Model | H235987 | |
| Product type | High speed semiconductor fuse | |
| Current rating | 125 A | |
| Rated voltage | 690 V AC | |
| Fuse class | High speed semiconductor protection | |
| Body style | Blade fuse | |
| Mounting type | Fuse holder mounting | |
| Frequency | 50 / 60 Hz | |
| High breaking capacity | Yes | |
| Application | Semiconductor and power electronics protection |
Frequently Asked Questions
What is the Mersen H235987 used for?
The H235987 is designed to protect semiconductor devices such as IGBTs, diodes and thyristors from damaging short circuit faults.
What is the current rating of the H235987?
The fuse has a 125 A current rating.
What voltage systems is this fuse suitable for?
The Mersen H235987 is designed for use on systems up to 690 V AC.
Where is this fuse commonly installed?
It is typically installed in industrial drives, converters, UPS systems, motor control equipment and other power electronic applications.
Why should a semiconductor fuse be used?
Semiconductor fuses operate extremely quickly to minimise damage to expensive electronic components during high fault current conditions.
Trusted for Industrial Circuit Protection
Mersen Protistor® semiconductor fuses are relied upon by engineers worldwide for delivering rapid fault protection, high reliability and dependable performance in demanding industrial power electronic systems.
