MERSEN FUSE 6,9 GRB 17 P 40 6,9GRB17P40

Q: What is the current rating?

The K220993 has a rated current of 40 A.

Q: What voltage is the fuse rated for?

The fuse is rated at 690 VAC IEC, 700 VAC UL AC and 600 VDC UL.

British Standard fuse-link Protistor® 17×49 gR 690VAC IEC 40A With Striker, designed for industrial power circuit and semiconductor protection with integrated striker indication.

SKU: K220993Alt SKU: BS17GB69V40PMPN: K220993

List Price £66.13 ex VAT

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£66.13

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Manufacturer Lead Time

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Why Choose the Mersen K220993 High-Speed Semiconductor Fuse?

The Mersen K220993 (BS17GB69V40P) is a Protistor® British Standard high-speed semiconductor fuse designed to provide ultra-fast protection for sensitive power electronic equipment. Featuring a 40 A current rating, 690 VAC IEC voltage rating and a compact 17 × 49 mm body, it is engineered for demanding industrial semiconductor protection applications.

This gR class semiconductor fuse provides full-range protection for power semiconductor devices, helping to safeguard IGBTs, thyristors, diodes and similar components against overload and short-circuit faults. Its integrated striker indicator provides clear fuse operation indication, simplifying maintenance and reducing downtime.

Manufactured by Mersen as part of the trusted Protistor® range, the K220993 complies with IEC semiconductor fuse standards and is suitable for variable speed drives, UPS systems, power converters, rectifiers and other industrial power electronic equipment requiring fast, reliable fault protection.

Key Advantages

Genuine Mersen Protistor® BS17GB69V40P semiconductor fuse.
40 A current rating.
690 VAC IEC / 700 VAC UL voltage rating.
gR full-range semiconductor protection.
Integrated striker indication for rapid maintenance.
Excellent current-limiting performance.
High breaking capacity up to 200 kA.

Key Features

Manufacturer: Mersen
Manufacturer Part Number: K220993
Catalogue Number: BS17GB69V40P
Series: Protistor® BS88-4
Fuse Class: gR
Current Rating: 40 A
Rated Voltage (IEC): 690 VAC
Rated Voltage (UL): 700 VAC AC / 600 VDC
Fuse Size: 17 × 49 mm
Indication: Striker

Typical Applications

Variable frequency drives (VFDs).
Variable speed drives (VSDs).
Industrial inverters.
Power converters.
UPS systems.
Rectifiers.
Soft starters.
Industrial power supplies.
DC drive systems.
Protection of IGBT, SCR, thyristor and diode assemblies.

Technical Specifications

Item number	K220993
Catalogue No	BS17GB69V40P
Description	British Standard fuse-link Protistor® 17x49 gR 690VAC IEC 40A With Striker
EAN/UPC Code	3605340249132
Rated voltage AC UL	700 V
Rated voltage DC UL	600 V
Rated voltage AC IEC	690 V
Ampere Rating	40 A
AC or DC	AC
Fuse Size	17x49
Mounting	Bolted
Clearing I2t At Rated Voltage	610 A²s
Melting I2t	96 A²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Design Details	gRB
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Copper
Connection/Terminal Type	L Brackets
Product Diameter	18.5 mm
Product Width	27 mm
Product Length	77.2 mm
Product Height	24 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	0.18 kg
Sell Pack Width	110 mm
Sell Pack Length	140 mm
Sell Pack Height	40 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.06 kg
Power Dissipation at Rated Current Value	10.5 W
HS Code	85361050
Country of Manufacture	India
Fuse Type	Semiconductor
Fuse Size	17x49 mm
Voltage	690 V

Frequently Asked Questions

What is the Mersen K220993 used for?

The Mersen K220993 is a Protistor® high-speed semiconductor fuse designed to protect sensitive power semiconductor devices in industrial power electronic equipment.

What is the current rating?

The K220993 has a rated current of 40 A.

What voltage is the fuse rated for?

The fuse is rated at 690 VAC IEC, 700 VAC UL AC and 600 VDC UL.

Does the fuse include an operation indicator?

Yes. The K220993 includes an integrated striker indicator that provides visual indication when the fuse has operated.

Which applications is it suitable for?

Typical applications include variable speed drives, UPS systems, inverters, rectifiers, converters and other equipment containing sensitive semiconductor devices.

Trusted Semiconductor Protection

Mersen Protistor® semiconductor fuses are trusted worldwide for delivering exceptionally fast fault clearing, high breaking capacity and reliable protection for modern power electronic systems.

Item number	K220993
Catalogue No	BS17GB69V40P
Description	British Standard fuse-link Protistor® 17x49 gR 690VAC IEC 40A With Striker
EAN/UPC Code	3605340249132
Rated voltage AC UL	700 V
Rated voltage DC UL	600 V
Rated voltage AC IEC	690 V
Ampere Rating	40 A
AC or DC	AC
Fuse Size	17x49
Mounting	Bolted
Clearing I2t At Rated Voltage	610 A²s
Melting I2t	96 A²s
AC Max I.R./Breaking Capacity	I1: 200 kA
Design Details	gRB
Indication System	Yes
Indication System Type	Striker
Connection/Terminal Material	Copper
Connection/Terminal Type	L Brackets
Product Diameter	18.5 mm
Product Width	27 mm
Product Length	77.2 mm
Product Height	24 mm
Sell Pack Quantity	3 EA
Sell Pack Weight	0.18 kg
Sell Pack Width	110 mm
Sell Pack Length	140 mm
Sell Pack Height	40 mm
Product group	Semiconductor Protection Fuses
Body/Insulating Material	Ceramic
Product Weight	0.06 kg
Power Dissipation at Rated Current Value	10.5 W
HS Code	85361050
Country of Manufacture	India
Fuse Type	Semiconductor
Fuse Size	17x49 mm
Voltage	690 V

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