Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
High-speed fuse designed for semiconductor protection with aR characteristic, rated 700A, 1000VAC IEC, 1100VAC UL, with striker indication and slotted blade terminals.
£129.85
The Mersen Z300678 is a professional-grade industrial fuse and electrical protection component designed for use in compatible power distribution, power conversion and industrial control equipment. Manufactured by Mersen, it provides a dependable replacement solution for engineers, OEM manufacturers and maintenance teams working with systems that specify the Z300678 manufacturer reference.
Industrial fuse components help protect valuable electrical equipment against excessive current and damaging short-circuit conditions. Selecting the correct Mersen component supports reliable system operation, reduces the risk of equipment damage and helps ensure that the required protection characteristics are maintained.
The Z300678 part number enables accurate identification during procurement, maintenance and inventory management. Electrical ratings, fuse class, dimensions and mounting requirements should always be checked against the existing fuse, equipment documentation or current Mersen technical data before installation.
Industrial fuses are designed to disconnect electrical circuits when fault current exceeds the permitted operating level. Fast and dependable interruption can help prevent damage to cables, semiconductor devices, drives, power supplies and other sensitive electrical equipment.
The Mersen Z300678 provides an identifiable replacement option for compatible systems. Because fuse components can differ in current rating, voltage rating, operating class, breaking capacity and physical size, all specifications should be verified before the component is ordered or installed.
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1000 V | |
| Item number | Z300678 | |
| Catalogue No | A110UD72LI700 | |
| Description | Square Body High-Speed Fuse Protistor® Size 72 aR 1000VAC IEC 1100VAC UL 700A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340332063 | |
| Rated voltage AC UL | 1100 V | |
| Rated voltage AC IEC | 1000 V | |
| Ampere Rating | 700 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 72 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 815 kA²s | |
| Melting I2t | 141.9 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 167 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 59 mm | |
| Product Length | 157.4 mm | |
| Product Height | 63 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.1699 kg | |
| Sell Pack Width | 150 mm | |
| Sell Pack Length | 190 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.7233 kg | |
| Power Dissipation at Rated Current Value | 140 W | |
| HS Code | 85361090 |
The Mersen Z300678 is an industrial fuse and electrical protection component identified by the manufacturer part number Z300678 for use in compatible equipment.
Compare the complete part number, electrical ratings, dimensions and terminal configuration with the existing component and the relevant equipment documentation.
The current rating, voltage rating, fuse characteristic and breaking capacity must be suitable for the circuit to provide safe and effective electrical protection.
The component should be installed by a suitably qualified electrical engineer or technician following appropriate isolation, testing and electrical safety procedures.
It may be used in compatible industrial control panels, power conversion systems, switchgear, machinery and other professional electrical installations.
Mersen electrical protection products are selected by engineers, OEM manufacturers and maintenance professionals to support dependable circuit protection and reliable operation in demanding industrial environments.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.