High-speed aR fuse designed for semiconductor protection with 160A rating, 1250VAC IEC and 1300VAC UL voltage ratings, mechanical striker indication and DIN 110 blade terminals.
£133.14
The Mersen D300751 is an industrial electrical fuse intended to provide dependable overcurrent and short-circuit protection within compatible power distribution, control and power electronic equipment. Manufactured by Mersen, a recognised specialist in electrical protection, it is suitable for maintenance, repair and replacement applications where the exact D300751 reference is specified.
Industrial fuses help interrupt dangerous fault currents before excessive electrical and thermal stress can damage conductors, electronic components or connected machinery. When correctly selected and installed, the Mersen D300751 can support safer system operation, effective fault isolation and reduced equipment downtime.
The D300751 should be matched carefully to the original component and equipment requirements. Its rated current, voltage, operating class, breaking capacity, dimensions and terminal configuration must be confirmed from the fuse label, official product documentation or the equipment manufacturer before installation.
Electrical fuses operate by opening a circuit when current exceeds defined operating limits. This helps prevent overheating, conductor damage and the failure of connected electrical or electronic components during a fault condition.
Correct fuse selection is essential for safe and reliable operation. The rated current, voltage, utilisation category, time-current characteristic, breaking capacity and physical design must correspond with the protected equipment. The Mersen D300751 should only be fitted where this exact reference or a formally approved equivalent is specified.
| Current | 11 A |
|---|---|
| Item number | D300751 |
| Catalogue No | PC71UD13C160D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 160A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340332995 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 160 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 71 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 21 kA²s |
| Melting I2t | 2.6 kA²s |
| AC Max I.R./Breaking Capacity | I1: 126 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 | 133.4 mm |
| Product Height | 56.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.56 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 | 0.52 kg |
| Power Dissipation at Rated Current Value | 46 W |
| HS Code | 85351000 |
The Mersen D300751 is used to provide overcurrent and short-circuit protection within compatible industrial electrical equipment.
It can be used where the equipment or original component specifies Mersen D300751. Every electrical and mechanical specification should be checked before installation.
Confirm the rated current, voltage, operating class, breaking capacity, time-current characteristic, dimensions and terminal configuration.
It may be installed in compatible industrial control panels, power distribution assemblies, machinery and power electronic equipment.
An alternative should only be used when approved by the equipment manufacturer and when all electrical, performance and dimensional specifications match.
Mersen fuses are used by electrical engineers, equipment manufacturers and maintenance professionals to provide dependable protection for critical industrial power and control systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...