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MERSEN FUSE BMF42V040 BMF42V040

MERSEN FUSE BMF42V040 BMF42V040

The BS1361 gG Type 30×57 fuse-link provides reliable circuit protection in industrial and commercial installations up to 415VAC with a continuous operating current of 40A. It features a ceramic body, clip mounting, and complies with British Standard BS1361 and IEC safety standards.

SKU: W1003877Alt SKU: BMF42V040MPN: W1003877
Price
List Price £12.20 ex VAT
Your Price (ex VAT)
£12.20
Manufacturer Lead Time Please contact us for a delivery time before you order
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Manufacturer Lead Time

Sold in packs of 6

£12.20

Why Choose the Mersen W1003877 BS1361 House Service Fuse?

The Mersen W1003877, catalogue number BMF42V040, is a premium BS1361 gG house service fuse-link designed to provide dependable overload and short-circuit protection in low-voltage electrical distribution systems. Manufactured to the BS1361 standard, this fuse is intended for electricity service cut-outs, customer switchboards, electricity control units and commercial distribution equipment.

Part of the trusted Mersen BS1361 House Service Fuse range, the W1003877 combines a robust ceramic body with a full-range gG operating characteristic, ensuring reliable protection against overloads and high prospective fault currents. Its compact cylindrical design enables straightforward installation in compatible BS1361 fuse carriers while providing long service life and dependable performance.

Rated at 40 A and 415 V AC, the BMF42V040 features a 30 × 57 mm format and offers a high 33 kA breaking capacity, making it ideal for residential, commercial and light industrial electrical distribution applications requiring reliable circuit protection.

Key Advantages

  • High-quality BS1361 gG house service fuse-link.
  • 40 A current rating for low-voltage distribution systems.
  • 415 V AC rated voltage for utility and commercial installations.
  • 33 kA breaking capacity for dependable fault-current interruption.
  • Full-range gG operating characteristic for overload and short-circuit protection.
  • Compact 30 × 57 mm cylindrical construction.

Key Features

  • Mersen BMF42V040 BS1361 fuse-link.
  • Item number: W1003877.
  • 40 A rated current.
  • 415 V AC rated voltage.
  • 30 × 57 mm fuse dimensions.
  • 33 kA AC breaking capacity.
  • gG utilisation category.
  • Clip-mounted installation.
  • Ceramic insulating body.
  • RoHS compliant.

Reliable Protection for Electrical Distribution Systems

The Mersen W1003877 is engineered to safely disconnect electrical circuits during overload and fault conditions, protecting incoming supplies, switchboards and connected equipment. Its gG operating characteristic provides full-range protection, making it suitable for a broad range of low-voltage electrical distribution applications.

Its compact BS1361 format allows installation in compatible service cut-outs and fuse carriers used by utilities, electrical contractors and panel builders seeking dependable long-term circuit protection.

Typical Applications

  • Electricity service cut-outs.
  • Customer switchboards.
  • Residential electrical distribution.
  • Commercial buildings and offices.
  • Utility low-voltage distribution equipment.
  • Industrial distribution panels.

Technical Specifications

Item number W1003877
Catalogue No BMF42V040
Description British Standard fuse-link IEC BS1361 gG Type 30x57 415VAC 40A
EAN/UPC Code 3605340477986
Rated voltage AC IEC 415 V
Ampere Rating 40 A
RoHS Compliant Yes
AC or DC AC
Speed/Characteristic gG
Fuse Size 30x57
Mounting Clip
Clearing I2t At Rated Voltage 5850 A²s
Melting I2t 520 A²s
AC Max I.R./Breaking Capacity I1: 33 kA
Product Diameter 30.2 mm
Product Length 57 mm
Sell Pack Quantity 6 EA
Sell Pack Weight 0.59 kg
Sell Pack Width 145 mm
Sell Pack Length 100 mm
Sell Pack Height 35 mm
Product group Low Voltage IEC Fuses
Body/Insulating Material Ceramic
Product Weight 0.0983 kg
Power Dissipation at Rated Current Value 4.3 W
HS Code 85361050
Country of Manufacture India
Fuse Size 30x57 mm
Fuse Class gG
Voltage 415 V

Frequently Asked Questions

What is the Mersen W1003877 used for?

The W1003877 is a BS1361 house service fuse-link designed to protect low-voltage electrical distribution systems against overloads and short circuits.

What is the current rating of this fuse?

The Mersen W1003877 has a rated current of 40 A.

What voltage is the W1003877 designed for?

It is designed for operation on 415 V AC electrical systems.

What is the breaking capacity?

The fuse provides a 33 kA AC breaking capacity for reliable interruption of high prospective fault currents.

Where is the Mersen W1003877 typically installed?

It is commonly installed in electricity service cut-outs, customer switchboards and compatible BS1361 fuse carriers used in low-voltage electrical distribution systems.

Trusted for Reliable Electrical Protection

Mersen BS1361 house service fuses are trusted by utilities, electrical contractors and panel builders to provide dependable overcurrent protection for residential, commercial and industrial electrical distribution systems.

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