MERSEN FUSE 200A4XC BTFP42V200

Q: What is the current rating of this fuse?

The Mersen BTFP42V200 has a rated current of 200 A.

British Standard fuse-link IEC BS88 gM Type A4 rated at 415VAC and 240VDC with 200M250A current rating and offset tag terminals for bolted mounting.

SKU: BTFP42V200Alt SKU: BTFP42V200MPN: F226302

List Price £37.97 ex VAT

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Manufacturer Lead Time

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Why Choose the Mersen BTFP42V200 Battery Fuse?

The Mersen BTFP42V200 is a compact 200 A low-voltage battery fuse designed to protect high-current DC electrical circuits against damaging overloads and short circuits. Manufactured by Mersen, it is suitable for battery-powered systems that require dependable circuit protection close to the power source.

This fuse helps protect batteries, power cables and connected electrical equipment by interrupting excessive current during qualifying fault conditions. Its compact high-current format supports installation in space-restricted power distribution assemblies while helping to minimise the length of unprotected cabling.

With a rated current of 200 A and a maximum voltage rating of 42 V DC, the BTFP42V200 is suitable for automotive, commercial vehicle, marine and specialist battery applications. Its robust terminal-mounted construction provides a secure electrical connection in demanding low-voltage DC systems.

Key Advantages

Compact battery fuse for high-current DC circuit protection.
200 A current rating for demanding battery-powered equipment.
42 V DC voltage rating for low-voltage electrical systems.
Helps protect batteries, cables and connected equipment.
Designed for installation close to the DC power source.
Space-efficient construction for compact power distribution systems.

Key Features

Mersen BTFP battery fuse series.
200 A rated current.
42 V DC rated voltage.
Designed for overcurrent and short-circuit protection.
Compact terminal-mounted construction.
Suitable for high-current battery distribution circuits.
Non-resettable fuse element for dependable fault interruption.
Suitable for automotive, transport, marine and industrial DC systems.

Reliable Protection for High-Current Battery Circuits

Battery fuses such as the Mersen BTFP42V200 disconnect a circuit when current rises beyond safe operating limits. Installing the fuse close to the battery helps reduce the amount of unprotected cabling and limits the risk of damage caused by short circuits or excessive current.

The BTFP42V200 is intended for circuits that carry substantial operating current while requiring a compact and reliable protective device. Its 200 A rating supports applications including vehicle power distribution, auxiliary batteries, inverters, electric equipment and specialist DC installations.

Typical Applications

Automotive battery and power distribution systems.
Commercial and specialist vehicle electrical systems.
Marine battery installations.
Auxiliary battery and inverter circuits.
Industrial machinery with low-voltage DC supplies.
High-current cable and equipment protection.

Technical Specifications

Item number	G226303A
Catalogue No	BTFP42V200M250
Description	British Standard fuse-link IEC BS88 gM Type A4 415VAC 240VDC 200M250A BTFP Offset Tag
EAN/UPC Code	3605340267785
Rated voltage AC IEC	415 V
Rated voltage DC IEC	240 V
In M Ich	200M250 A
RoHS Compliant	Yes
AC or DC	AC/DC
Speed/Characteristic	gM
Fuse Size	A4
Mounting	Bolted
Clearing I2t At Rated Voltage	532000 A²s
Melting I2t	190000 A²s
AC Max I.R./Breaking Capacity	I1: 80 kA
Max. Rated Breaking Capacity DC	40 kA
Connection/Terminal Material	Tin-Plated Copper
Connection/Terminal Type	Offset Tag
Product Diameter	41.9 mm
Product Width	44 mm
Product Length	111 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	0.29 kg
Sell Pack Width	115 mm
Sell Pack Length	210 mm
Sell Pack Height	45 mm
Product group	Low Voltage IEC Fuses
Body/Insulating Material	Ceramic
Product Weight	0.29 kg
Power Dissipation at Rated Current Value	19.2 W
HS Code	85361090
Country of Manufacture	India
Fuse Class	gM
Voltage	415 V

Frequently Asked Questions

What is the Mersen BTFP42V200 used for?

The BTFP42V200 is used to protect high-current battery circuits, power cables and connected electrical equipment against overload and short-circuit faults.

What is the current rating of this fuse?

The Mersen BTFP42V200 has a rated current of 200 A.

What voltage is the BTFP42V200 rated for?

The fuse is designed for low-voltage DC electrical systems operating at up to 42 V DC.

Where should the BTFP42V200 be installed?

The fuse should normally be installed as close as practical to the battery or DC power source using compatible mounting equipment.

Can the Mersen BTFP42V200 be reused after it operates?

No. The BTFP42V200 is a non-resettable fuse and must be replaced with a correctly rated equivalent after it has interrupted an electrical fault.

Trusted Electrical Protection from Mersen

Mersen fuse products are specified for automotive, transportation, marine and industrial DC systems where dependable protection of batteries, cables and electrical equipment is essential.

Item number	G226303A
Catalogue No	BTFP42V200M250
Description	British Standard fuse-link IEC BS88 gM Type A4 415VAC 240VDC 200M250A BTFP Offset Tag
EAN/UPC Code	3605340267785
Rated voltage AC IEC	415 V
Rated voltage DC IEC	240 V
In M Ich	200M250 A
RoHS Compliant	Yes
AC or DC	AC/DC
Speed/Characteristic	gM
Fuse Size	A4
Mounting	Bolted
Clearing I2t At Rated Voltage	532000 A²s
Melting I2t	190000 A²s
AC Max I.R./Breaking Capacity	I1: 80 kA
Max. Rated Breaking Capacity DC	40 kA
Connection/Terminal Material	Tin-Plated Copper
Connection/Terminal Type	Offset Tag
Product Diameter	41.9 mm
Product Width	44 mm
Product Length	111 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	0.29 kg
Sell Pack Width	115 mm
Sell Pack Length	210 mm
Sell Pack Height	45 mm
Product group	Low Voltage IEC Fuses
Body/Insulating Material	Ceramic
Product Weight	0.29 kg
Power Dissipation at Rated Current Value	19.2 W
HS Code	85361090
Country of Manufacture	India
Fuse Class	gM
Voltage	415 V

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