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MERSEN FUSE A 130 URD 71 TTI 0250 A130URD71TTI0250
High-speed fuse with aR characteristic, rated 250A, 1250VAC IEC and 1300VAC UL, featuring striker indication and flush-end UNC threaded terminals for bolted mounting.
£82.41
Why Choose the Mersen D301027 Industrial Fuse?
The Mersen D301027 is an industrial electrical fuse designed to provide dependable circuit protection within compatible power distribution, control and power electronic equipment. Manufactured by Mersen, a recognised specialist in electrical protection, it is suitable for maintenance, repair and replacement applications where the exact D301027 manufacturer reference is specified.
Industrial fuses help interrupt excessive fault currents before damaging levels of electrical and thermal energy reach conductors, electronic components or connected machinery. When correctly selected and installed, the Mersen D301027 supports effective fault isolation, improved equipment reliability and reduced operational downtime.
The electrical ratings and physical configuration of the D301027 should be verified against the original fuse, equipment documentation or official Mersen technical data before installation. Important selection criteria include rated current, rated voltage, operating class, breaking capacity, time-current characteristic, terminal arrangement and dimensions.
Key Advantages
- Industrial fuse designed for dependable electrical circuit protection.
- Helps protect compatible equipment against damaging fault currents.
- Suitable for maintenance, repair and replacement applications.
- Supports rapid isolation of affected electrical circuits.
- Robust construction for demanding industrial environments.
- Manufactured by Mersen, an established electrical protection specialist.
Key Features
- Mersen industrial fuse technology.
- Manufacturer reference D301027.
- Designed for compatible industrial electrical equipment.
- Replaceable protection component for efficient maintenance.
- Supports coordinated circuit protection when correctly specified.
- Suitable for power distribution, control and power electronic systems.
- Industrial-grade construction for reliable operation.
- Designed to interrupt electrical faults within its specified operating limits.
Reliable Protection for Industrial Electrical Systems
Electrical fuses operate by opening a circuit when current exceeds defined operating limits. This helps prevent excessive heating, conductor damage and failure of connected electrical or electronic components during a fault condition.
Correct fuse selection is essential for safe and dependable operation. Rated current, voltage, utilisation category, time-current characteristic, breaking capacity and physical format must correspond with the protected equipment. The Mersen D301027 should only be fitted where this exact reference or a formally approved equivalent is specified.
Typical Applications
- Industrial electrical control panels.
- Power distribution and switching assemblies.
- Motor control and automation equipment.
- Manufacturing and processing machinery.
- Power conversion and electronic systems.
- Maintenance and replacement of compatible Mersen fuse installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | D301027 | |
| Catalogue No | A130UD71TTI250 | |
| Description | Square Body High-Speed Fuse Protistor® Size 71 aR 1250VAC IEC 1300VAC UL 250A With Striker Flush ends UNC threads | |
| EAN/UPC Code | 3605340335613 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 250 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 71 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 72 kA²s | |
| Melting I2t | 8.9 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 126 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 51 mm | |
| Product Length | 74 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.5 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 170 mm | |
| Sell Pack Height | 70 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.5 kg | |
| Power Dissipation at Rated Current Value | 61 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen D301027 used for?
The Mersen D301027 is used to provide electrical circuit protection within compatible industrial power, control and electronic equipment.
Can the D301027 be used as a direct replacement?
It can be used where the equipment or original component specifies Mersen D301027. All electrical and mechanical specifications should be checked before installation.
Which specifications should be confirmed before installation?
Confirm the rated current, rated voltage, operating class, breaking capacity, time-current characteristic, dimensions and terminal configuration.
Where is this fuse typically installed?
It may be installed in compatible industrial control panels, power distribution assemblies, machinery and power electronic equipment.
Can a different fuse be substituted for the D301027?
An alternative fuse should only be used when approved by the equipment manufacturer and when every required electrical, performance and dimensional specification matches.
Trusted Industrial Electrical Protection
Mersen fuses are used by electrical engineers, equipment manufacturers and maintenance professionals to provide dependable protection for critical industrial power and control systems.
