MERSEN FUSE BTIA55V4 A2C BTIA55V4

MERSEN FUSE BTIA55V4 A2C BTIA55V4

The BS88 gG Type A2 4A fuse-link offers robust circuit protection in industrial and commercial installations, rated for 550VAC and 250VDC with offset tag terminals for bolted mounting.

SKU: BTIA55V4Alt SKU: BTIA55V4MPN: T1019239
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Why Choose the Mersen BTIA55V4 Industrial Fuse Link?

The Mersen BTIA55V4 is a compact British Standard industrial fuse link designed to provide dependable overcurrent and short-circuit protection for low-current electrical circuits. Manufactured by Mersen, it helps protect cables, control equipment and connected components against excessive current and potentially damaging electrical faults.

The BTIA55V4 uses a current-limiting fuse element to disconnect the circuit when the current exceeds safe operating levels. Rapid fault interruption helps reduce the thermal and mechanical stress placed on conductors, switchgear and downstream equipment, supporting reliable operation in industrial and commercial electrical installations.

With a rated current of 4 A and a rated voltage of 550 V AC, the BTIA55V4 is suitable for compatible control, auxiliary and distribution circuits. Its bolted-tag construction provides a secure electrical connection when installed in an appropriately rated fuse holder or switch-fuse assembly.

Key Advantages

  • Dependable overcurrent and short-circuit protection for low-current circuits.
  • 4 A rated current suitable for control and auxiliary applications.
  • 550 V AC voltage rating for compatible industrial systems.
  • Current-limiting action helps reduce damaging fault energy.
  • Bolted-tag construction provides a secure electrical connection.
  • Replaceable design supports straightforward maintenance and circuit restoration.

Key Features

  • Mersen British Standard industrial fuse link.
  • 4 A nominal current rating.
  • 550 V AC rated operating voltage.
  • Designed for overcurrent and short-circuit protection.
  • Current-limiting fuse element for rapid fault interruption.
  • Bolted-tag format for compatible fuse carriers.
  • Industrial-grade construction for dependable performance.
  • Non-resettable design requiring replacement after operation.

Reliable Protection for Control and Auxiliary Circuits

Industrial fuse links protect electrical systems by interrupting excessive current before it can cause serious overheating or equipment damage. During a short circuit or severe overcurrent condition, the internal fuse element operates and safely disconnects the affected circuit.

The Mersen BTIA55V4 should be installed in a correctly rated and mechanically compatible fuse holder. Fuse selection should consider the circuit voltage, normal load current, prospective short-circuit current, conductor capacity and coordination with other protective devices.

Typical Applications

  • Industrial control and auxiliary circuits.
  • Electrical control panels and switchboards.
  • Instrumentation and monitoring equipment.
  • Machinery control systems.
  • Low-current distribution circuits.
  • Maintenance and replacement of industrial fuse links.

Technical Specifications

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Fuse Class gG
Voltage 550 V
Item number T1019239
Catalogue No BTIA55V4
Description British Standard fuse-link IEC BS88 gG Type A2 550VAC 250VDC 4A BTIA Offset Tag
EAN/UPC Code 3605340517101
Rated voltage AC IEC 550 V
Rated voltage DC IEC 250 V
Ampere Rating 4 A
RoHS Compliant Yes
AC or DC AC/DC
Speed/Characteristic gG
Fuse Size A2
Mounting Bolted
Clearing I2t At Rated Voltage 38 A²s
Melting I2t 7.6 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 14.5 mm
Product Length 86 mm
Sell Pack Quantity 10 EA
Sell Pack Weight 0.2 kg
Sell Pack Width 80 mm
Sell Pack Length 90 mm
Sell Pack Height 35 mm
Product group Low Voltage IEC Fuses
Body/Insulating Material Ceramic
Product Weight 0.02 kg
Power Dissipation at Rated Current Value 1.5 W
HS Code 85361010
Country of Manufacture India

Frequently Asked Questions

What is the Mersen BTIA55V4 used for?

The BTIA55V4 is used to protect compatible low-current industrial circuits, cables and electrical equipment against overcurrent and short-circuit faults.

What is the current rating of the BTIA55V4?

The Mersen BTIA55V4 has a nominal current rating of 4 A.

What voltage is the BTIA55V4 rated for?

The fuse is rated for operation in compatible electrical systems up to 550 V AC.

Can the Mersen BTIA55V4 be reset after it operates?

No. The BTIA55V4 is a non-resettable fuse link and must be replaced with a correctly rated equivalent after it has operated.

Where is this fuse typically installed?

It is typically installed in a compatible bolted-tag fuse holder within an industrial control panel, switchboard, machinery assembly or auxiliary distribution circuit.

Trusted Industrial Circuit Protection

Mersen industrial fuse links are used by electrical engineers, panel builders and maintenance professionals to provide dependable fault protection for control, machinery and distribution circuits.