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High-speed Protistor® fuse designed for reliable protection of power semiconductors and critical circuits, rated 690VAC and 250A with integrated striker indication and DIN 110 blade terminals.
£79.18
The Mersen Z301943 is a specialist industrial electrical protection component identified by the manufacturer reference Z301943. It is intended for maintenance, replacement and spare-parts applications involving compatible Mersen electrical equipment.
Accurate component selection is essential when maintaining industrial power distribution, power conversion and control systems. Using the specified manufacturer reference helps engineers, OEM manufacturers and maintenance professionals preserve the intended electrical performance, physical compatibility and operational reliability of the associated equipment.
The Z301943 part number should be checked against the existing component, equipment parts list or official Mersen technical documentation before ordering. Electrical ratings, protection characteristics, dimensions, mounting arrangements and terminal configurations must be verified before installation.
Industrial electrical protection components help reduce the risk of equipment damage caused by excessive current, short circuits and other electrical faults. Correct specification is essential because the selected component must match both the electrical requirements and the physical configuration of the installation.
The Mersen Z301943 provides a clearly identifiable replacement reference for compatible systems. Before fitting the component, the electrical supply should be safely isolated and all markings, dimensions, connections and ratings should be compared with the existing part and the relevant equipment documentation.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | gR | |
| Voltage | 690 V | |
| Item number | Z301943 | |
| Catalogue No | PC70GB69V250D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 70 gR 690VAC IEC 250A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340348873 | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 250 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | gR | |
| Fuse Size | 70 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 79000 A²s | |
| Melting I2t | 13448 A²s | |
| AC Max I.R./Breaking Capacity | I1: 150 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 110 Blades | |
| Product Width | 39 mm | |
| Product Length | 133.4 mm | |
| Product Height | 46 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.0899 kg | |
| Sell Pack Width | 130 mm | |
| Sell Pack Length | 50 mm | |
| Sell Pack Height | 140 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.3633 kg | |
| Power Dissipation at Rated Current Value | 40 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
The Mersen Z301943 is an industrial electrical protection component identified by the manufacturer part number Z301943 for use with compatible Mersen equipment.
Compare the complete part number, electrical ratings, physical dimensions, mounting method and terminal arrangement with the existing component and the applicable equipment documentation.
The current rating, voltage rating, protection characteristic, breaking capacity and physical configuration must match the application to provide appropriate protection and safe operation.
The component should be installed by a suitably qualified electrical engineer or maintenance technician following appropriate isolation, testing and electrical safety procedures.
It may be used in compatible industrial control panels, power distribution equipment, power conversion systems, machinery and other professional electrical installations.
Mersen electrical protection products are used by engineers, OEM manufacturers and maintenance professionals to support dependable equipment protection and reliable operation in demanding industrial environments.
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