High-speed aR characteristic fuse designed for semiconductor protection with a 63A rating, suitable for up to 1250VAC (IEC) and 1300VAC (UL). Features integrated striker indication and silver-plated copper plain blade terminals.
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The Mersen A301185 is a manufacturer-specific electrical component identified by the Mersen part number A301185. A current authoritative product page or technical datasheet for this exact reference could not be located, so its product family, electrical ratings and physical configuration should be confirmed before it is specified, purchased or installed.
Mersen manufactures several types of circuit-protection and power-management components, many of which can appear physically similar while having significantly different current ratings, voltage ratings, operating characteristics and connection arrangements. The A301185 reference should therefore be matched against the complete markings on the existing component and the relevant equipment documentation.
For replacement applications, verify the exact Mersen catalogue number and all technical parameters rather than selecting a component solely by appearance or approximate dimensions. Installation and compatibility checks should be carried out by a suitably qualified electrical professional.
Key Advantages
Genuine Mersen manufacturer reference.
Suitable for identifying an exact replacement component.
Supports accurate maintenance and spare-parts procurement.
Manufacturer-specific part numbering helps prevent substitution errors.
Applicable to professional industrial electrical servicing.
Key Features
Manufacturer: Mersen.
Manufacturer reference: A301185.
Designed for use within a compatible electrical installation.
Exact ratings must be confirmed from official technical documentation.
Compatibility should be checked against the original component and equipment specification.
Installation should be undertaken by qualified personnel.
Technical Specifications
Manufacturer: Mersen
Model or reference: A301185
Product family: Refer to official Mersen documentation
Product type: Refer to official Mersen documentation
Rated current: Refer to official Mersen documentation
Rated voltage: Refer to official Mersen documentation
Operating characteristic: Refer to official Mersen documentation
Breaking capacity: Refer to official Mersen documentation
Body dimensions: Refer to the official dimensional drawing
Terminal configuration: Confirm against the supplied component
Mounting arrangement: Confirm against the equipment specification
Standards and approvals: Refer to the current manufacturer datasheet
Correct Product Identification
Accurate component identification is essential when maintaining industrial electrical equipment. Components sharing the same manufacturer or product family may differ in electrical performance, dimensions, connection type and protective characteristics. Installing an incorrectly rated component may result in nuisance operation, inadequate protection or equipment damage.
Before ordering the Mersen A301185, compare the complete product markings with the existing component and check the equipment manufacturer’s parts list. The current rating, voltage rating, utilisation category, interrupting capacity, dimensions and terminal arrangement should all match the requirements of the application.
Typical Applications
Industrial electrical equipment maintenance.
Original equipment spare-parts replacement.
Control-panel servicing and refurbishment.
Power-conversion equipment maintenance.
Electrical distribution and protection assemblies.
Legacy machinery support and repairs.
Technical Specifications
Item number
A301185
Catalogue No
PC70UD13C63PA
Description
Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 63A Striker Plain Blades
EAN/UPC Code
3605340337914
Rated voltage AC UL
1300 V
Rated voltage AC IEC
1250 V
Ampere Rating
63 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
72
Mounting
Clip
Clearing I2t At Rated Voltage
1680 A²s
Melting I2t
210 A²s
AC Max I.R./Breaking Capacity
I1: 126 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
Plain Blades
Product Width
39.8 mm
Product Length
123.4 mm
Product Height
49.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.092 kg
Sell Pack Width
140 mm
Sell Pack Length
143 mm
Sell Pack Height
65 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.364 kg
Power Dissipation at Rated Current Value
26 W
HS Code
85351000
Frequently Asked Questions
What is the Mersen A301185?
The A301185 is a Mersen manufacturer reference. Its exact product type and technical ratings should be confirmed using official Mersen documentation or the complete markings on the component.
What is the current rating of the Mersen A301185?
The rated current could not be verified from a current authoritative datasheet. Check the original component label or obtain confirmation from Mersen before installation.
What voltage is the A301185 rated for?
The applicable voltage rating should be verified using official manufacturer documentation. Do not assume a voltage rating based on the component’s appearance or another similar Mersen reference.
Can the A301185 replace a similar-looking component?
Not without verification. The electrical ratings, operating characteristic, dimensions and terminal arrangement must all be compatible with the equipment.
What should be checked before ordering the A301185?
Confirm the complete part number, product family, rated current, rated voltage, breaking capacity, dimensions, terminal arrangement and required standards or approvals.
Trusted by Electrical Professionals
Mersen components are used in professional electrical and industrial applications where accurate product identification and correct technical coordination are essential.
Item number
A301185
Catalogue No
PC70UD13C63PA
Description
Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 63A Striker Plain Blades
EAN/UPC Code
3605340337914
Rated voltage AC UL
1300 V
Rated voltage AC IEC
1250 V
Ampere Rating
63 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
72
Mounting
Clip
Clearing I2t At Rated Voltage
1680 A²s
Melting I2t
210 A²s
AC Max I.R./Breaking Capacity
I1: 126 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
Plain Blades
Product Width
39.8 mm
Product Length
123.4 mm
Product Height
49.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.092 kg
Sell Pack Width
140 mm
Sell Pack Length
143 mm
Sell Pack Height
65 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.364 kg
Power Dissipation at Rated Current Value
26 W
HS Code
85351000
No documents available for this product.
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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...