The Protistor® 17×27 aR 250V AC UL 30A fuse-link is engineered to British Standard dimensions, ensuring dependable circuit protection for industrial power electronics. Optimised for rapid response to overloads and short circuits, it safeguards sensitive semiconductor devices with minimal let-through energy.
SKU:S076652Alt SKU:BS17US25V30MPN:S076652
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Why Choose the Mersen S076652 Protistor® High Speed Fuse?
The Mersen S076652 is a Protistor® British Standard high speed semiconductor fuse engineered to provide rapid protection for sensitive power semiconductor devices. Designed for industrial power electronics, it delivers fast fault interruption to help protect drives, converters, UPS systems and other equipment containing semiconductor components.
As part of the Mersen Protistor® BS88-4 17 x 27 mm range, the S076652 is manufactured in accordance with IEC 60269-1 and IEC 60269-4 standards for semiconductor protection. Its compact ceramic construction and high breaking capacity make it ideal for demanding industrial applications requiring dependable circuit protection.
With a 30 A current rating, 250 V AC IEC / UL voltage rating and aR operating characteristic, the Mersen S076652 provides reliable protection against short circuits while helping minimise equipment damage and costly production downtime.
Key Advantages
High speed Protistor® semiconductor protection fuse.
30 A rated current for industrial power electronics.
250 V AC IEC and UL voltage rating.
High breaking capacity for semiconductor protection.
Compact 17 x 27 mm British Standard format.
Suitable for protecting drives, UPS systems and power converters.
Key Features
Mersen Protistor® BS88-4 series.
Manufacturer part number S076652.
Catalogue number BS17US25V30.
30 A current rating.
250 V AC IEC / UL rating.
300 V DC UL rating.
aR ultra-fast semiconductor protection characteristic.
Bolted mounting with copper L bracket terminals.
Reliable Protection for Power Electronics
High speed semiconductor fuses are specifically designed to protect sensitive semiconductor devices from damaging short circuits. Their ultra-fast operating characteristics reduce thermal stress on expensive power electronics, helping extend equipment life and improve system reliability.
The Mersen Protistor® BS88-4 range is widely specified for industrial automation, renewable energy, motor control and power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
Variable frequency drives (VFDs).
Industrial inverters and converters.
UPS systems.
Rectifiers.
Motor control equipment.
Industrial power electronic systems.
Technical Specifications
Item number
S076652
Catalogue No
BS17US25V30
Description
British Standard fuse-link Protistor® 17x27 aR 250V AC UL 30A
EAN/UPC Code
3605340019537
Rated voltage AC UL
250 V
Rated voltage DC UL
300 V
Rated voltage AC IEC
250 V
Ampere Rating
30 A
RoHS Compliant
Yes
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
17x27
Mounting
Bolted
Clearing I2t At Rated Voltage
235 A²s
Melting I2t
45 A²s
Connection/Terminal Material
Copper
Connection/Terminal Type
L Brackets
Product Diameter
18.5 mm
Product Length
54.4 mm
Sell Pack Quantity
10 EA
Sell Pack Weight
0.276 kg
Sell Pack Width
68 mm
Sell Pack Length
188 mm
Sell Pack Height
24 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.0276 kg
Power Dissipation at Rated Current Value
5.6 W
HS Code
85361050
Country of Manufacture
India
Frequently Asked Questions
What is the Mersen S076652 used for?
The Mersen S076652 is designed to protect power semiconductor devices in industrial equipment such as drives, converters, rectifiers and UPS systems.
What is the current rating of this fuse?
The fuse has a 30 A current rating.
What voltage is the fuse rated for?
The S076652 is rated for 250 V AC (IEC and UL) and 300 V DC (UL).
What fuse characteristic does this product use?
The fuse features an aR ultra-fast characteristic specifically developed for semiconductor protection.
Where is this fuse commonly installed?
It is commonly installed in industrial drives, power converters, UPS equipment, rectifiers and other power electronic systems requiring fast semiconductor protection.
Trusted Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted by industrial engineers and OEM manufacturers worldwide for delivering fast fault protection, outstanding reliability and dependable performance in demanding power electronic applications.
Item number
S076652
Catalogue No
BS17US25V30
Description
British Standard fuse-link Protistor® 17x27 aR 250V AC UL 30A
EAN/UPC Code
3605340019537
Rated voltage AC UL
250 V
Rated voltage DC UL
300 V
Rated voltage AC IEC
250 V
Ampere Rating
30 A
RoHS Compliant
Yes
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
17x27
Mounting
Bolted
Clearing I2t At Rated Voltage
235 A²s
Melting I2t
45 A²s
Connection/Terminal Material
Copper
Connection/Terminal Type
L Brackets
Product Diameter
18.5 mm
Product Length
54.4 mm
Sell Pack Quantity
10 EA
Sell Pack Weight
0.276 kg
Sell Pack Width
68 mm
Sell Pack Length
188 mm
Sell Pack Height
24 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.0276 kg
Power Dissipation at Rated Current Value
5.6 W
HS Code
85361050
Country of Manufacture
India
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.
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Stock lines ready to ship
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Same day dispatches
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Customers supported
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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...