MERSEN FUSE 6,9 GRB 72 EF 0550 PC72GB69V550EF

MERSEN FUSE 6,9 GRB 72 EF 0550 PC72GB69V550EF

High-speed Protistor® fuse with a ceramic square body, rated for 690 V AC and 550 A, featuring a striker indication system and open slot blades for bolted mounting, designed for semiconductor protection and industrial applications.

SKU: T301340Alt SKU: PC72GB69V550EFMPN: T301340
Price
List Price £245.25 ex VAT
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£245.25
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Why Choose the Mersen T301340 Industrial Fuse?

The Mersen T301340 is an industrial electrical fuse designed to provide dependable overcurrent and short-circuit protection within compatible power, control and automation equipment. Manufactured by Mersen, a recognised specialist in electrical protection, this component is suitable for maintenance and replacement applications where the exact T301340 manufacturer reference is specified.

When excessive current flows through an electrical circuit, the fuse element operates automatically and disconnects the affected circuit. This helps limit the electrical, thermal and mechanical energy produced during a fault, reducing the risk of damage to conductors, switching devices, control components and connected industrial equipment.

The Mersen T301340 is intended for use in compatible industrial electrical assemblies and OEM equipment. Before installation, the fuse’s current rating, voltage rating, utilisation category, breaking capacity, physical dimensions and terminal configuration should be verified against the original component, its product markings or authorised manufacturer documentation.

Key Advantages

  • Genuine Mersen industrial circuit protection component.
  • Designed to provide dependable overcurrent and short-circuit protection.
  • Helps limit damaging electrical, thermal and mechanical fault energy.
  • Passive protection device requiring no external operating power.
  • Suitable for industrial maintenance, repair and replacement applications.
  • Exact T301340 reference supports accurate component identification.

Key Features

  • Mersen manufacturer reference T301340.
  • Current-responsive fusible element for automatic fault interruption.
  • Non-resettable protection device requiring replacement after operation.
  • Suitable for compatible industrial electrical assemblies.
  • Supports OEM equipment servicing and preventative maintenance programmes.
  • Designed for straightforward identification during replacement work.
  • Suitable for power, control and automation equipment.
  • Manufactured by an established electrical protection specialist.

Reliable Protection for Industrial Electrical Systems

Overcurrents and short circuits can expose industrial equipment to excessive heat, electromagnetic forces and potentially damaging fault energy. A correctly specified fuse responds by opening the affected circuit, helping prevent the fault from causing further damage to downstream components.

Correct fuse selection is essential for safe and dependable operation. Any replacement must satisfy the required current rating, voltage rating, operating characteristic, breaking capacity, physical dimensions and connection arrangement. The T301340 should only be installed where this exact reference or a formally approved equivalent has been specified.

Typical Applications

  • Industrial electrical control panels.
  • Power distribution and conversion equipment.
  • Motor control and automation systems.
  • Manufacturing and processing machinery.
  • OEM electrical assemblies.
  • Replacement of an existing Mersen T301340 fuse.

Technical Specifications

Item number T301340
Catalogue No PC72GB69V550EF
Description Square Body High-Speed Fuse Protistor® Size 72 gR 690VAC IEC 550A With Striker Open Slot Blades
EAN/UPC Code 3605340339987
Rated voltage AC IEC 690 V
Ampere Rating 550 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic gR
Fuse Size 72
Mounting Bolted
Clearing I2t At Rated Voltage 495 kA²s
Melting I2t 84.1 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 Open Slot Blades
Product Width 59 mm
Product Length 149.4 mm
Product Height 63 mm
Sell Pack Quantity 3 EA
Sell Pack Weight 2.274 kg
Sell Pack Width 157 mm
Sell Pack Length 205 mm
Sell Pack Height 80 mm
Product group Semiconductor Protection Fuses
Body/Insulating Material Ceramic
Product Weight 0.758 kg
Power Dissipation at Rated Current Value 78 W
HS Code 85361090
Country of Manufacture France
Fuse Type Semiconductor
Fuse Class gR
Voltage 690 V

Frequently Asked Questions

What is the Mersen T301340 used for?

The Mersen T301340 is used to provide overcurrent and short-circuit protection within compatible industrial electrical equipment and assemblies.

Can the T301340 be used as a direct replacement fuse?

It can be used where the equipment documentation specifies Mersen T301340. Its electrical ratings, dimensions, operating class and connection arrangement must be verified before installation.

Can a differently rated fuse replace the T301340?

A different fuse should only be used when it has been formally approved as compatible. The substitute must meet all required electrical, operating and dimensional specifications.

Can the Mersen T301340 be reset after operation?

No. The T301340 is a non-resettable protection device and must be replaced after its fusible element has operated.

Who should install the Mersen T301340?

Installation should be completed by a suitably qualified electrical professional after the equipment has been safely isolated and the required fuse specification has been confirmed.

Trusted Industrial Circuit Protection

Mersen fuse products are selected by electrical engineers, equipment manufacturers and maintenance professionals for dependable circuit protection across industrial power, automation and control systems.

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