High-speed aR fuse designed for semiconductor protection in AC circuits up to 690VAC (IEC) and 700VAC (UL) with a 500A rating and integrated striker indication system.
£163.70
The Mersen R300188 is a genuine Mersen industrial electrical component intended for use in professional electrical installations, machinery and power distribution systems. Manufactured by a recognised specialist in electrical protection and power management, it provides a dependable replacement option for equipment requiring the exact R300188 manufacturer reference.
Selecting the correct manufacturer part number is essential when maintaining industrial equipment. The Mersen R300188 allows engineers, maintenance teams and panel builders to identify and source a compatible component using the original product reference, helping reduce the risk of installing an unsuitable alternative.
This component is suitable for maintenance, repair and replacement requirements where Mersen part number R300188 is specified. Electrical ratings, dimensions, connection details and compatibility should be confirmed against the equipment documentation or current Mersen technical data before installation.
Industrial electrical systems often contain components that must be replaced using an exact manufacturer reference. Matching the original part number helps ensure that the selected component has the appropriate physical format, electrical characteristics and installation requirements for the equipment.
Before replacing an existing device, engineers should compare the complete markings on the original component with the manufacturer documentation. System voltage, current, mounting arrangement, terminal configuration and equipment compatibility must all be verified before the Mersen R300188 is installed.
| Current | 11 A |
|---|---|
| Item number | R300188 |
| Catalogue No | PC32UD69V500D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 500A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340324549 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 500 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 32 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 160 kA²s |
| Melting I2t | 28 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 110 Blades |
| Product Width | 59 mm |
| Product Length | 134.6 mm |
| Product Height | 65 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.6899 kg |
| Sell Pack Width | 145 mm |
| Sell Pack Length | 195 mm |
| Sell Pack Height | 78 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.5633 kg |
| Power Dissipation at Rated Current Value | 90 W |
| HS Code | 85361090 |
| Country of Manufacture | France |
The R300188 is a Mersen industrial component identified by its specific manufacturer part number. Its exact technical configuration should be confirmed against current Mersen documentation before ordering or installation.
A different part number should not be treated as interchangeable unless its electrical ratings, dimensions, mounting arrangement and manufacturer-approved compatibility have been verified.
Compare the complete reference printed on the existing component and consult the equipment manual, electrical drawings or current Mersen technical documentation.
Installation should be completed by a suitably qualified electrical engineer or technician in accordance with applicable electrical safety procedures.
It may be used for industrial maintenance, machinery servicing, electrical panel repair and replacement applications where the exact R300188 reference is specified.
Mersen products are used by engineers, manufacturers, panel builders and maintenance professionals to support dependable electrical protection, power management and industrial equipment operation.
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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...