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Engineered for critical protection of power semiconductor devices, this high-speed fuse delivers rapid fault-clearing capabilities, ensuring reliable performance in demanding industrial and electrical installations. Its robust square body design and DIN 110 blade terminals offer secure and straightforward integration into high-current circuits.
£63.99
The Mersen H300019 is an industrial electrical protection component identified by the manufacturer reference H300019. It is intended for use as a replacement part in compatible Mersen or equipment-specific fuse installations where dependable circuit protection and accurate component matching are essential.
Correct fuse selection helps protect electrical equipment against damaging overcurrent conditions while supporting safe and reliable system operation. The H300019 should therefore be matched against the original component’s current rating, voltage rating, operating class, breaking capacity, physical dimensions and connection arrangement before installation.
Its Mersen manufacture makes the H300019 suitable for professional maintenance, repair and replacement applications in industrial switchgear, control panels, machinery and power-distribution equipment. Installation should be completed by a suitably qualified person in accordance with the equipment documentation and applicable electrical regulations.
An industrial fuse is designed to interrupt excessive current before it causes serious damage to cables, conductors or connected equipment. Correctly coordinated protection can help reduce the risk of component failure, secondary damage and prolonged equipment downtime.
The replacement component must not be selected using the catalogue reference alone. The complete electrical and mechanical specification should be compared with the original fuse, equipment manual or authorised Mersen technical documentation to confirm compatibility.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | H300019 | |
| Catalogue No | PC31UD69V200D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 200A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340322439 | |
| 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 | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 15000 A²s | |
| Melting I2t | 2600 A²s | |
| 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 | 51 mm | |
| Product Length | 134.6 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.2429 kg | |
| Sell Pack Width | 142 mm | |
| Sell Pack Length | 166 mm | |
| Sell Pack Height | 62 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.4143 kg | |
| Power Dissipation at Rated Current Value | 45 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
The Mersen H300019 is an industrial electrical protection component intended for use in compatible fuse assemblies, control equipment or manufacturer-designed installations.
No. The part number should be checked alongside the required current rating, voltage rating, operating class, breaking capacity, dimensions and terminal configuration.
It may be used as a replacement where the original equipment documentation specifies H300019 and all electrical and mechanical characteristics are confirmed as compatible.
The operating class determines how the fuse responds to overload and short-circuit conditions. Installing a fuse with an unsuitable characteristic could result in inadequate protection or unwanted operation.
The component should be installed by a suitably qualified electrical professional after the circuit has been safely isolated and compatibility has been verified.
Mersen circuit-protection products are used across industrial electrical systems where dependable fault protection, accurate component selection and reliable long-term operation are essential.
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