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MERSEN FUSE 6,9 URD 30 D11 A 0200 6,9URD30D11A0200
High-speed Protistor® fuse with 200A rating, suitable for semiconductor protection in industrial power systems. Features integrated striker indication and DIN 110 blade terminals.
£70.19
Why Choose the Mersen W300123 Protistor® Fuse?
The Mersen W300123 is a specialist Protistor® high-speed semiconductor fuse developed to protect sensitive power electronic equipment against damaging short-circuit currents. Designed for demanding industrial electrical systems, it provides rapid fault interruption to help protect semiconductor components used within drives, converters, rectifiers and industrial power supplies.
As part of Mersen’s established semiconductor protection range, the W300123 combines fast operating performance with effective current limitation. This helps reduce the thermal and electrical energy transferred to valuable components during a fault, supporting improved equipment reliability and reduced unplanned downtime.
The fuse is intended for use in appropriately rated circuits and compatible mounting arrangements. Its industrial construction makes it suitable for OEM machinery, automation panels and power conversion equipment where dependable semiconductor protection is required. Electrical ratings, dimensions and installation requirements should be confirmed against the product marking or applicable Mersen technical documentation before replacement.
Key Advantages
- High-speed semiconductor fuse designed for power electronic protection.
- Rapid fault interruption helps protect sensitive semiconductor components.
- Effective current limitation reduces damaging let-through energy.
- Supports improved reliability of drives, converters and industrial power systems.
- Industrial-grade construction for demanding electrical applications.
- Suitable for maintenance, replacement and OEM equipment requirements.
Key Features
- Mersen Protistor® semiconductor protection range.
- High-speed operating characteristic.
- Designed to limit short-circuit energy.
- Suitable for protecting diodes, thyristors, rectifiers and related power components.
- Engineered for industrial power conversion equipment.
- Compatible with appropriately rated fuse mounting hardware.
- Suitable for electrical control panels and machinery installations.
- Manufacturer reference W300123 for accurate identification.
Reliable Protection for Power Electronic Equipment
Power semiconductor devices can be damaged by fault energy within a very short period. High-speed fuses are engineered to interrupt excessive current rapidly, helping prevent the resulting heat and electrical stress from reaching destructive levels.
The Mersen W300123 is intended to form part of a coordinated electrical protection system. Correct fuse selection should account for circuit voltage, operating current, prospective fault current, thermal conditions and the energy withstand characteristics of the protected semiconductor components.
Typical Applications
- Variable frequency drives and motor control systems.
- Industrial power converters and inverters.
- Rectifier assemblies.
- Uninterruptible power supply equipment.
- Industrial automation machinery.
- Power distribution and control panels.
- Semiconductor switching circuits.
- OEM power electronic equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | W300123 | |
| Catalogue No | PC30UD69V200D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 200A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340323689 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 200 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 30 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 16.7 kA²s | |
| Melting I2t | 3 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 | 43 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen W300123 used for?
The Mersen W300123 is used to provide high-speed short-circuit protection for semiconductor components installed in industrial power electronic equipment.
What equipment can the W300123 protect?
It may be used in appropriately rated drives, converters, rectifiers, industrial power supplies and other systems containing sensitive power semiconductor devices.
Can the W300123 be replaced with a standard industrial fuse?
A standard fuse should not be substituted unless its electrical performance and semiconductor protection characteristics have been verified as equivalent by a qualified electrical engineer.
How should the correct replacement fuse be selected?
Confirm the complete W300123 reference together with the voltage, current, mounting format, operating class and breaking capacity shown on the original fuse or equipment documentation.
Where is the Mersen W300123 typically installed?
It is typically installed within industrial control panels, power conversion assemblies, motor drive systems and OEM machinery using a compatible fuse mounting arrangement.
Trusted Semiconductor Protection from Mersen
Mersen Protistor® fuses are specified for power electronic systems where rapid fault interruption, effective current limitation and dependable semiconductor protection are essential.
