High-speed aR characteristic fuse designed for semiconductor protection with 630A rating, dual voltage compatibility (1000VAC IEC, 1100VAC UL), integrated striker indication system, and robust ceramic body construction.
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Why Choose the Mersen H300617 Electrical Protection Component?
The Mersen H300617 is an industrial electrical protection component identified by manufacturer reference H300617. It is intended for use with compatible power distribution, power conversion, machinery or electrical control equipment where precise component identification and dependable system protection are essential.
Using the complete Mersen H300617 reference helps engineers, panel builders, maintenance teams and purchasing professionals identify the specified component accurately. Matching the original manufacturer part number reduces the risk of selecting a replacement with unsuitable electrical ratings, operating characteristics, dimensions or connection arrangements.
Detailed technical information for this exact reference could not be independently verified from reliable public documentation. Before ordering or installing the H300617, confirm its exact product type, rated current, rated voltage, utilisation category, breaking capacity, terminal arrangement and dimensions using the component label, equipment documentation or an official Mersen data sheet.
Key Advantages
Manufactured by Mersen, a specialist in electrical protection equipment.
Precisely identified by manufacturer reference H300617.
Supports accurate maintenance and replacement-part procurement.
Suitable for compatible professional industrial installations.
Helps prevent unsuitable substitutions based solely on appearance.
Suitable for OEM, maintenance, repair and overhaul requirements.
Key Features
Mersen manufacturer part number H300617.
Professional industrial electrical component.
Intended for equipment specifying the same manufacturer reference.
Application-specific electrical and mechanical characteristics.
Suitable for original equipment and replacement applications.
Requires verification of all ratings before installation.
Designed for selection and installation by qualified professionals.
Supported by Mersen electrical protection expertise.
Exact product type: Verify using official Mersen documentation
Rated current: Verify before purchase and installation
Rated voltage: Verify before purchase and installation
Utilisation or operating class: Verify using the official data sheet
Breaking capacity: Verify using official technical documentation
Terminal arrangement: Refer to the product label or dimensional drawing
Indicator or striker: Configuration dependent
Mounting method: Application dependent
Dimensions: Refer to the official Mersen dimensional drawing
Weight: Refer to official Mersen technical documentation
Accurate Selection for Industrial Electrical Systems
Electrical protection components must be selected according to the protected circuit, prospective fault current and requirements of the associated equipment. Products with similar external dimensions can have substantially different voltage ratings, current ratings, time-current characteristics and fault-interruption capabilities.
The Mersen H300617 should therefore be selected using its complete manufacturer reference rather than appearance alone. A qualified electrical professional should verify every applicable rating, the connection format, mounting requirements, available installation space and environmental conditions before energising the system.
Typical Applications
Industrial electrical control panels.
Power distribution assemblies.
Power conversion equipment.
Motor drives and motor control systems.
Industrial machinery and production equipment.
OEM electrical assemblies.
Maintenance, repair and overhaul projects.
Technical Specifications
Item number
H300617
Catalogue No
PC71UD10C630EF
Description
Square Body High-Speed Fuse Protistor® Size 71 aR 1000VAC IEC 1100VAC UL 630A With Striker Open Slot Blades
EAN/UPC Code
3605340331028
Rated voltage AC UL
1100 V
Rated voltage AC IEC
1000 V
Ampere Rating
630 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
71
Mounting
Bolted
Clearing I2t At Rated Voltage
725 kA²s
Melting I2t
126 kA²s
AC Max I.R./Breaking Capacity
I1: 167 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
Open Slot Blades
Product Width
51 mm
Product Length
149.4 mm
Product Height
56.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.62 kg
Sell Pack Width
140 mm
Sell Pack Length
174 mm
Sell Pack Height
71 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.54 kg
Power Dissipation at Rated Current Value
120 W
HS Code
85361090
Frequently Asked Questions
What is the Mersen H300617?
The Mersen H300617 is an industrial electrical protection component identified by manufacturer part number H300617. Its exact construction, electrical ratings and configuration should be confirmed using official Mersen documentation.
How can I confirm that the H300617 is compatible?
Compare the complete H300617 reference, exact product type, voltage and current ratings, operating class, breaking capacity, terminal arrangement and dimensions with the existing component and equipment documentation.
Can the Mersen H300617 be used as a replacement component?
It may be suitable where the original equipment specifies the same Mersen reference and every relevant electrical, mechanical and performance characteristic matches the application.
Can a visually similar component replace the H300617?
No component should be selected by appearance alone. Similar-looking electrical protection products can have different ratings, operating characteristics and fault-interruption capabilities.
Which specifications should be checked before installation?
The component should be selected and installed by a suitably qualified electrical professional in accordance with the equipment instructions and applicable electrical regulations.
Trusted Electrical Protection Expertise
Mersen products are specified by engineers, equipment manufacturers, panel builders and maintenance professionals for industrial power management and electrical protection applications.
Item number
H300617
Catalogue No
PC71UD10C630EF
Description
Square Body High-Speed Fuse Protistor® Size 71 aR 1000VAC IEC 1100VAC UL 630A With Striker Open Slot Blades
EAN/UPC Code
3605340331028
Rated voltage AC UL
1100 V
Rated voltage AC IEC
1000 V
Ampere Rating
630 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
71
Mounting
Bolted
Clearing I2t At Rated Voltage
725 kA²s
Melting I2t
126 kA²s
AC Max I.R./Breaking Capacity
I1: 167 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
Open Slot Blades
Product Width
51 mm
Product Length
149.4 mm
Product Height
56.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.62 kg
Sell Pack Width
140 mm
Sell Pack Length
174 mm
Sell Pack Height
71 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.54 kg
Power Dissipation at Rated Current Value
120 W
HS Code
85361090
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
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● 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...