High-speed fuse designed for semiconductor protection with 400A rating, 690VAC IEC and 700VAC UL voltage compatibility, featuring a mechanical striker and DIN 110 blade terminals.
£136.77
The Mersen L300022 is an industrial electrical protection component intended for use in professionally designed power distribution, control and equipment protection systems. Manufactured by Mersen, it is suited to maintenance, OEM and replacement applications where dependable fault protection and compatibility with the existing installation are essential.
Mersen manufactures specialist fuse solutions for industrial machinery, power conversion equipment, control panels and electrical distribution systems. The L300022 should be selected according to the circuit voltage, operating current, prospective short-circuit current, utilisation category and coordination requirements of the protected equipment.
The precise product family, rated current, rated voltage, breaking capacity, operating characteristic, terminal arrangement and physical dimensions of the L300022 could not be reliably confirmed from publicly available product information. These details must therefore be verified against the product label, original equipment documentation or official Mersen technical data before purchase, substitution or installation.
Industrial fuses are designed to interrupt excessive current before it causes serious damage to cables, switching devices, control equipment or connected machinery. Correct fuse coordination helps reduce equipment damage, improve installation safety and minimise disruption following an electrical fault.
Selection of the Mersen L300022 must account for the system voltage, continuous load current, starting or inrush current, available fault current, ambient temperature and the protection requirements of the connected equipment. It should only replace another fuse when its electrical characteristics, terminal arrangement and dimensions have been confirmed as compatible.
| Current | 11 A |
|---|---|
| Item number | L300022 |
| Catalogue No | PC31UD69V400D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 400A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340322460 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 400 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 31 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 110000 A²s |
| Melting I2t | 19000 A²s |
| 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 110 Blades |
| Product Width | 51 mm |
| Product Length | 134.6 mm |
| Product Height | 56.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.2429 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 | 0.4143 kg |
| Power Dissipation at Rated Current Value | 68 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The L300022 is an industrial electrical protection component intended for use in a compatible and correctly coordinated fuse system.
The exact current and voltage ratings should be confirmed from the product label, original equipment documentation or official Mersen technical data before installation.
It should only be used as a replacement when the current rating, voltage rating, operating characteristic, breaking capacity, terminals and dimensions are fully compatible with the original fuse.
The L300022 must be installed in a holder or mounting assembly specifically compatible with its terminal configuration, dimensions and electrical ratings.
Installation and replacement should be completed by a qualified electrical professional after the circuit has been safely isolated and the fuse specifications have been verified.
Mersen fuse products are used in industrial electrical systems where dependable fault interruption, correct circuit coordination and reliable equipment protection are required.
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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...