High-speed fuse with aR characteristic, rated 700A, 1100VAC IEC and 1200VAC UL, featuring a flush striker indication system and metric thread terminals for secure installation.
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Why Choose the Mersen G300501 Electrical Protection Component?
The Mersen G300501 is a genuine Mersen industrial electrical protection component identified by manufacturer part number G300501. It is intended for equipment-specific maintenance, repair and replacement applications where this exact Mersen reference is specified by the original equipment manufacturer or within the electrical system documentation.
Accurate part-number identification is essential when maintaining industrial electrical equipment. Components that appear physically similar may have different current ratings, voltage ratings, operating characteristics, terminal arrangements or dimensions. Selecting the precise Mersen G300501 reference helps reduce procurement errors and supports correct compatibility with the existing installation.
The G300501 is suitable for professional OEM, MRO and industrial maintenance requirements. Its electrical ratings, operating class, connection arrangement and physical dimensions should be verified against the installed component, equipment manual or current Mersen technical documentation before ordering, substituting or installing the product.
Key Advantages
Genuine Mersen industrial electrical component.
Clearly identified by manufacturer part number G300501.
Suitable for equipment maintenance and replacement requirements.
Supports accurate component identification and procurement.
Intended for compatible industrial electrical installations.
Suitable for professional OEM and MRO applications.
Key Features
Mersen electrical protection product.
Manufacturer reference G300501.
Intended for equipment-specific replacement applications.
Suitable for industrial electrical maintenance environments.
Supports like-for-like component identification.
Suitable for OEM, panel-building and engineering procurement.
Technical compatibility should be confirmed before installation.
Installation should be completed by a qualified electrical professional.
Installation type: Dependent on compatible equipment
Compatibility: Equipment specifying Mersen part G300501
Procurement category: Maintenance, repair and operations component
Electrical ratings: Confirm using current Mersen technical documentation
Dimensions and connections: Verify before ordering or installation
Accurate Replacement for Industrial Electrical Systems
Electrical protection components contribute to the safe and reliable operation of machinery, control panels and power-distribution equipment. Using the exact manufacturer reference is important because an unsuitable alternative may not provide the required electrical, thermal or mechanical performance.
Specifying the Mersen G300501 enables engineers, buyers and maintenance teams to compare the required component directly with the installed part. This supports efficient maintenance planning, reduces purchasing mistakes and helps minimise avoidable equipment downtime.
Typical Applications
Industrial electrical control panels.
Power-distribution equipment.
Machinery maintenance and repair.
OEM electrical assemblies.
Factory automation installations.
Replacement of an existing Mersen G300501 component.
Technical Specifications
Item number
G300501
Catalogue No
PC72UD11C700TF
Description
Square Body High-Speed Fuse Protistor® Size 72 aR 1100VAC IEC 1200VAC UL 700A With Striker Flush ends metric threads
EAN/UPC Code
3605340329391
Rated voltage AC UL
1200 V
Rated voltage AC IEC
1100 V
Ampere Rating
700 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
72
Mounting
Bolted
Clearing I2t At Rated Voltage
920 kA²s
Melting I2t
141.9 kA²s
AC Max I.R./Breaking Capacity
I1: 150 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Brass
Connection/Terminal Type
Flush ends
Product Width
59 mm
Product Length
74 mm
Product Height
63 mm
Sell Pack Quantity
1 EA
Sell Pack Weight
0.8 kg
Sell Pack Width
110 mm
Sell Pack Length
130 mm
Sell Pack Height
80 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.8 kg
Power Dissipation at Rated Current Value
140 W
HS Code
85351000
Frequently Asked Questions
What is the Mersen G300501?
The Mersen G300501 is an industrial electrical protection component identified by manufacturer part number G300501.
Where is the Mersen G300501 used?
It is intended for compatible industrial electrical equipment in which the G300501 reference is specified by Mersen or the original equipment manufacturer.
How can I confirm compatibility?
Compare the G300501 reference with the installed component and verify its electrical ratings, dimensions and connections using the equipment manual or current Mersen technical documentation.
Can another Mersen part replace the G300501?
An alternative should only be used when Mersen or the equipment manufacturer has confirmed that it is electrically, mechanically and functionally compatible.
Who should install the Mersen G300501?
Installation should be completed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical safety requirements.
Trusted Electrical Protection from Mersen
Mersen electrical protection products are specified by equipment manufacturers, panel builders and maintenance professionals for dependable use in demanding industrial electrical installations.
Item number
G300501
Catalogue No
PC72UD11C700TF
Description
Square Body High-Speed Fuse Protistor® Size 72 aR 1100VAC IEC 1200VAC UL 700A With Striker Flush ends metric threads
EAN/UPC Code
3605340329391
Rated voltage AC UL
1200 V
Rated voltage AC IEC
1100 V
Ampere Rating
700 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
72
Mounting
Bolted
Clearing I2t At Rated Voltage
920 kA²s
Melting I2t
141.9 kA²s
AC Max I.R./Breaking Capacity
I1: 150 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Brass
Connection/Terminal Type
Flush ends
Product Width
59 mm
Product Length
74 mm
Product Height
63 mm
Sell Pack Quantity
1 EA
Sell Pack Weight
0.8 kg
Sell Pack Width
110 mm
Sell Pack Length
130 mm
Sell Pack Height
80 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.8 kg
Power Dissipation at Rated Current Value
140 W
HS Code
85351000
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...