High-speed Protistor® fuse with 800A rating, IEC and UL certification, striker indication system, and open slot blade terminals for bolted mounting.
£291.14
The Mersen T300627 is an industrial electrical fuse designed to provide dependable overcurrent and short-circuit protection within compatible power, control and automation equipment. Manufactured by Mersen, a recognised specialist in electrical protection, this component is intended for applications where reliable circuit interruption is required to protect valuable equipment.
When an electrical fault causes current to exceed the fuse element's operating limits, the T300627 disconnects the affected circuit. This helps limit the thermal and mechanical energy generated by the fault, reducing the risk of damage to conductors, power components, control devices and surrounding electrical assemblies.
The Mersen T300627 is suitable for industrial maintenance, repair and OEM replacement applications where this exact manufacturer reference has been specified. Before installation, its current rating, voltage rating, operating class, breaking capacity, dimensions and terminal arrangement should be checked against the original component and the equipment manufacturer's technical documentation.
Overcurrents and short circuits can expose electrical equipment to excessive heat, electrical stress and mechanical forces. A correctly selected fuse responds by opening the circuit and limiting the amount of fault energy that reaches downstream components.
Correct fuse selection is essential for safe and dependable operation. Any replacement must match the required current rating, voltage rating, breaking capacity, operating characteristic, physical dimensions and connection arrangement. The T300627 should only be installed where this exact reference or a formally approved equivalent has been specified.
| Item number | T300627 |
|---|---|
| Catalogue No | PC72UD10C800EF |
| Description | Square Body High-Speed Fuse Protistor® Size 72 aR 1000VAC IEC 1100VAC UL 800A With Striker Open Slot Blades |
| EAN/UPC Code | 3605340331226 |
| Rated voltage AC UL | 1100 V |
| Rated voltage AC IEC | 1000 V |
| Ampere Rating | 800 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 72 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 1240 kA²s |
| Melting I2t | 215.1 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 | Open Slot Blades |
| Product Width | 59 mm |
| Product Length | 149.4 mm |
| Product Height | 63 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 2.274 kg |
| Sell Pack Width | 157 mm |
| Sell Pack Length | 205 mm |
| Sell Pack Height | 80 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.758 kg |
| Power Dissipation at Rated Current Value | 146 W |
| HS Code | 85361090 |
The Mersen T300627 is used to provide overcurrent and short-circuit protection within compatible industrial electrical equipment and assemblies.
It can be used where the equipment manufacturer specifies Mersen T300627. The electrical ratings, dimensions, operating class and terminal arrangement must be verified before installation.
A different fuse should not be substituted unless it has been formally approved as compatible. Its current rating, voltage rating, breaking capacity, operating characteristic and physical format must satisfy the equipment requirements.
No. The T300627 is a non-resettable protection component and must be replaced after its fusible element has operated.
Installation should be carried out by a suitably qualified electrical professional after the equipment has been safely isolated and the required fuse specification has been confirmed.
Mersen fuse products are widely used by electrical engineers, equipment manufacturers and maintenance professionals to support dependable circuit protection across industrial power, automation and control systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...