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MERSEN FUSE A 070 URD 30 TTI 0200 A070URD30TTI0200
High-speed aR characteristic fuse for semiconductor protection rated at 200A, 690VAC IEC and 700VAC UL with striker indication and flush end UNC threaded terminals.
£58.01
Why Choose the Mersen P300577 Protistor® High-Speed Fuse?
The Mersen P300577 is a specialist high-speed semiconductor protection fuse designed for demanding industrial power-electronic systems. As part of the established Mersen Protistor® range, it helps protect sensitive semiconductor devices from damaging short-circuit and overcurrent conditions.
High-speed fuses operate rapidly to limit the thermal and electrical energy transferred to connected equipment during a fault. This makes the P300577 suitable for systems containing valuable power-semiconductor components such as diodes, thyristors, rectifiers and insulated-gate bipolar transistors.
The Mersen P300577 manufacturer reference enables maintenance engineers, OEM manufacturers and purchasing teams to identify the required component accurately. Before ordering or installation, the full electrical ratings, utilisation category, dimensions and terminal configuration should be checked against the existing fuse and current Mersen technical documentation.
Key Advantages
- High-speed fuse protection for sensitive semiconductor devices.
- Rapid fault interruption helps minimise damage to power electronics.
- Low let-through energy supports effective semiconductor protection.
- Suitable for demanding industrial power-conversion equipment.
- Genuine Mersen component identified by part number P300577.
- Supports maintenance, replacement and OEM manufacturing requirements.
Key Features
- Mersen Protistor® semiconductor fuse technology.
- Manufacturer part number P300577.
- High-speed operating characteristic for power-semiconductor protection.
- Designed to limit fault-current duration and let-through energy.
- Suitable for protecting diodes, thyristors, rectifiers and IGBTs.
- Robust construction for professional industrial environments.
- Compatible with the appropriate equipment-specific mounting system.
- Suitable for replacement, maintenance and original equipment applications.
Reliable Protection for Power Electronics
Power-semiconductor devices can suffer permanent damage within milliseconds when exposed to excessive fault current. Dedicated high-speed fuses are therefore used to interrupt faults rapidly and restrict the amount of energy reaching sensitive electronic components.
The Mersen P300577 is intended to provide dependable protection within compatible motor-control and power-conversion systems. Correct fuse selection is essential, so the required current rating, voltage rating, breaking capacity, utilisation category, I²t performance, dimensions and terminal configuration must be verified before installation.
Typical Applications
- Variable speed and variable frequency drives.
- Industrial rectifiers and power converters.
- Uninterruptible power supply systems.
- Motor drives and soft-start equipment.
- Industrial inverters and charging systems.
- Automation and power distribution equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | P300577 | |
| Catalogue No | A070UD30TTI200 | |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 200A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340330571 | |
| 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 Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 40 mm | |
| Product Length | 50.6 mm | |
| Product Height | 48 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.765 kg | |
| Sell Pack Width | 80 mm | |
| Sell Pack Length | 135 mm | |
| Sell Pack Height | 55 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.255 kg | |
| Power Dissipation at Rated Current Value | 42 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen P300577 used for?
The P300577 is a high-speed fuse intended to protect sensitive semiconductor devices and compatible industrial power-electronic equipment against damaging fault currents.
Which components can the P300577 protect?
High-speed semiconductor fuses are commonly used to protect diodes, thyristors, rectifiers and IGBTs within industrial power-conversion equipment.
Is the P300577 suitable for variable speed drives?
It may be installed in compatible variable speed drives when its electrical ratings, operating characteristics and physical configuration match the equipment requirements.
How should P300577 compatibility be confirmed?
Compare the complete part number, current rating, voltage rating, breaking capacity, utilisation category, I²t values, dimensions and terminal arrangement with the existing fuse and current Mersen documentation.
Who should install the Mersen P300577?
The fuse should be selected and installed by a suitably qualified electrical engineer or technician in accordance with applicable safety requirements and equipment manufacturer instructions.
Trusted by Power Electronics Professionals Worldwide
Mersen Protistor® fuses are specified by electrical engineers, OEM manufacturers and industrial maintenance teams for dependable high-speed protection of valuable power-electronic equipment.
