The PC73UD11C800PA offers robust circuit protection with rapid response for critical semiconductor applications, supporting up to 800A at 1100VAC (IEC) and 1200VAC (UL). Its aR-class characteristics enable superior short-circuit protection, ensuring minimal let-through energy and increased system reliability.
£313.74
The Mersen Z301966 is a specialist industrial electrical protection component identified by the manufacturer reference Z301966. It is intended for maintenance, replacement and spare-parts applications involving compatible Mersen electrical equipment.
Accurate component identification is essential when maintaining industrial power distribution, power conversion and control systems. Selecting the specified manufacturer reference helps engineers, OEM manufacturers and maintenance professionals preserve the intended electrical performance, physical compatibility and operational reliability of the associated equipment.
The Z301966 part number should be checked against the existing component, equipment parts list or official Mersen technical documentation before ordering. Electrical ratings, protection characteristics, dimensions, mounting arrangements and terminal configurations must be verified before installation.
Industrial electrical protection components help reduce the risk of equipment damage caused by excessive current, short circuits and other electrical faults. Correct specification is essential because the selected component must match both the electrical requirements and the physical configuration of the installation.
The Mersen Z301966 provides a clearly identifiable replacement reference for compatible systems. Before fitting the component, the electrical supply should be safely isolated and all markings, dimensions, connections and ratings should be compared with the existing part and the relevant equipment documentation.
| Item number | Z301966 |
|---|---|
| Catalogue No | PC73UD11C800PA |
| Description | Square Body High-Speed Fuse Protistor® Size 73 aR 1100VAC IEC 1200VAC UL 800A With Striker Plain Blades |
| EAN/UPC Code | 3605340349191 |
| Rated voltage AC UL | 1200 V |
| Rated voltage AC IEC | 1100 V |
| Ampere Rating | 800 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 73 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 1230 kA²s |
| Melting I2t | 190 kA²s |
| AC Max I.R./Breaking Capacity | I1: 150 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | Plain Blades |
| Product Width | 73 mm |
| Product Length | 149.4 mm |
| Product Height | 78.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 3.48 kg |
| Sell Pack Width | 160 mm |
| Sell Pack Length | 245 mm |
| Sell Pack Height | 100 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 1.16 kg |
| Power Dissipation at Rated Current Value | 148 W |
| HS Code | 85351000 |
The Mersen Z301966 is an industrial electrical protection component identified by the manufacturer part number Z301966 for use with compatible Mersen equipment.
Compare the complete part number, electrical ratings, physical dimensions, mounting method and terminal arrangement with the existing component and the applicable equipment documentation.
The current rating, voltage rating, protection characteristic, breaking capacity and physical configuration must match the application to provide appropriate protection and safe operation.
The component should be installed by a suitably qualified electrical engineer or maintenance technician following appropriate isolation, testing and electrical safety procedures.
It may be used in compatible industrial control panels, power distribution equipment, power conversion systems, machinery and other professional electrical installations.
Mersen electrical protection products are used by engineers, OEM manufacturers and maintenance professionals to support dependable equipment protection and reliable operation in demanding industrial environments.
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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...