High-speed fuse offering rapid and reliable protection for semiconductors up to 315A with visual striker indication and robust ceramic body.
£116.41
The Mersen M300115 is a professional industrial electrical component intended for use with compatible Mersen circuit protection, power distribution and control equipment. Identified by the manufacturer reference M300115, it is suitable for maintenance, replacement and original equipment applications where precise component identification is essential.
Selecting the correct electrical component helps maintain equipment reliability, minimise unplanned downtime and reduce the risk of installing an incompatible replacement. Ordering by the exact Mersen M300115 reference can simplify procurement, engineering stock control and scheduled maintenance activities.
Before ordering or installation, the component’s voltage rating, current rating, operating class, dimensions, terminal arrangement and mounting configuration should be verified against the existing part, equipment documentation or current Mersen technical information.
Industrial electrical systems depend on components with correctly matched electrical and mechanical characteristics. Parts that appear visually similar may have different current ratings, voltage ratings, operating characteristics, connection types or mounting dimensions.
Using the complete Mersen M300115 reference during procurement helps maintenance teams and panel builders identify the required component. All technical specifications should nevertheless be confirmed before installation, particularly when replacing an older part or fitting the component within safety-critical equipment.
| Current | 08 A |
|---|---|
| Item number | M300115 |
| Catalogue No | PC30UD69V315A |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 315A With Striker DIN 80 Blades |
| EAN/UPC Code | 3605340323603 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 315 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 30 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 67 kA²s |
| Melting I2t | 12 kA²s |
| 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 80 Blades |
| Product Width | 40 mm |
| Product Length | 110 mm |
| Product Height | 48 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 0.8199 kg |
| Sell Pack Width | 135 mm |
| Sell Pack Length | 145 mm |
| Sell Pack Height | 55 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.2733 kg |
| Power Dissipation at Rated Current Value | 55 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The Mersen M300115 is an industrial electrical component identified by Mersen part number M300115 for use with correctly matched electrical protection, distribution or control equipment.
It may be used as a replacement when its complete manufacturer reference, electrical ratings, dimensions, connection arrangement and mounting configuration match the original part.
Compare the full M300115 reference and all product markings with the existing component, equipment manual, electrical drawings or current Mersen technical documentation.
Yes. The voltage rating, current rating and operating characteristics must be suitable for the circuit and equipment in which the component will be installed.
Selection and installation should be completed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical safety requirements.
Mersen products are used by electrical engineers, panel builders, equipment manufacturers and maintenance professionals in industrial power management and circuit protection applications.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...