Engineered for demanding industrial applications, this Protistor® fuse delivers rapid fault response and full compliance with both IEC 60269-4 and UL standards, ensuring robust protection for sensitive semiconductor devices. Its 315A rating and high interrupt capacity make it ideal for AC busbars and power conversion systems operating up to 690VAC IEC and 700VAC UL.
£126.17
The Mersen J300135 is a professional industrial circuit protection component intended for use in compatible electrical power distribution, control and equipment protection assemblies. Manufactured by Mersen, it is suitable for maintenance, replacement and OEM applications where accurate component identification and dependable electrical performance are essential.
Mersen specialises in fuses, fuse holders and associated circuit protection products for industrial machinery, switchgear, power electronics and energy infrastructure. The unique J300135 manufacturer part number helps engineers, panel builders and procurement professionals identify the required component when servicing compatible Mersen equipment.
Detailed public technical information for the J300135 is limited. Its precise product type, rated current, rated voltage, protection characteristic, dimensions and terminal arrangement should therefore be verified against the original component, equipment documentation or official Mersen technical data before purchase or installation.
Correctly specified circuit protection components help maintain the safety, availability and reliability of industrial electrical equipment. They form part of a coordinated protection system designed to isolate electrical faults, limit fault energy and reduce the risk of damage to connected machinery and power infrastructure.
The Mersen J300135 should only be installed where its electrical characteristics, operating performance, physical format and connection arrangement match the original equipment specification. Selection should be based on verified technical information rather than visual similarity or part-number sequence alone.
| Item number | J300135 |
|---|---|
| Catalogue No | A070UD30KI315 |
| Description | Square Body High-Speed Fuse Protistor® Size 30 aR 690VAC IEC 700VAC UL 315A With Striker Slotted Blades short |
| EAN/UPC Code | 3605340323801 |
| 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 | Slotted Blades |
| Product Width | 40 mm |
| Product Length | 129 mm |
| Product Height | 48 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 0.873 kg |
| Sell Pack Width | 133 mm |
| Sell Pack Length | 157 mm |
| Sell Pack Height | 54 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.291 kg |
| Power Dissipation at Rated Current Value | 55 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The Mersen J300135 is an industrial electrical circuit protection component intended for use in compatible power distribution, control or equipment protection assemblies.
It should only replace a component with matching manufacturer identification, electrical ratings, operating characteristics, dimensions and terminal requirements. Compatibility must be verified before installation.
Confirm the precise product type, rated current, rated voltage, protection characteristic, breaking capacity, dimensions, mounting arrangement and equipment compatibility.
Detailed public specifications are limited. The original component label, equipment documentation or official Mersen technical data should be checked before ordering.
Installation or replacement should be completed by a qualified electrical professional following the equipment manufacturer's instructions and applicable electrical safety procedures.
Mersen electrical protection products are selected by engineers, panel builders and maintenance professionals to support safe and dependable operation across demanding industrial electrical 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...