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MERSEN FUSE BTSD42V100M125 A4C BTSD42V100M125
Reliable BS88 gM characteristic fuse-link rated at 415VAC and 240VDC with 100M125A current rating and BTSD offset tag terminals for motor circuit protection.
£15.38
Why Choose the Mersen BTSD42V100M125 British Standard Fuse-Link?
The Mersen BTSD42V100M125 is a high-performance British Standard gM motor protection fuse-link designed for dependable short-circuit protection in industrial motor circuits. Its motor-rated operating characteristics allow temporary starting currents to pass while providing rapid interruption of severe fault currents that could damage conductors, contactors, switchgear and connected machinery.
Part of the established Mersen BTSD British Standard fuse-link range, the BTSD42V100M125 combines robust construction with effective current limitation. During a short-circuit event, it helps restrict peak fault current and let-through energy, reducing thermal and mechanical stress throughout the motor control installation.
With a 100 A continuous current rating, a 125 A motor circuit rating and an operating voltage of up to 415 V AC, the BTSD42V100M125 is suitable for motor starters, control panels and industrial equipment requiring reliable British Standard fuse protection.
Key Advantages
- British Standard gM fuse-link for motor circuit protection.
- 100 A continuous current rating.
- 125 A motor circuit rating.
- 415 V AC rated operating voltage.
- Accommodates normal motor starting currents without unnecessary operation.
- Current-limiting performance helps reduce equipment damage during faults.
Key Features
- Mersen BTSD British Standard fuse-link series.
- 100M125 motor circuit designation.
- 415 V AC voltage rating.
- gM utilisation category for motor applications.
- High fault-current interruption capability.
- Effective limitation of peak current and let-through energy.
- Robust tagged construction for secure installation.
- Suitable for coordination with motor overload protection devices.
Reliable Protection for Industrial Motor Circuits
The Mersen BTSD42V100M125 is engineered to tolerate the temporary inrush current produced during motor starting while responding rapidly to dangerous short-circuit conditions. Its current-limiting action reduces the magnitude and duration of fault current, helping protect cables, contactors, motor starters and industrial switchgear.
As a gM motor fuse-link, the BTSD42V100M125 is primarily intended to provide short-circuit protection. It should normally be coordinated with a correctly selected overload relay or electronic motor protection device to provide comprehensive protection against both sustained overloads and short circuits.
Typical Applications
- Industrial motor control centres.
- Direct-on-line motor starters.
- Star-delta starter assemblies.
- Pumps, compressors and ventilation systems.
- Conveyors and materials-handling machinery.
- Industrial switchgear and control panels.
Technical Specifications
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| Fuse Class | gM | |
|---|---|---|
| Voltage | 415 V | |
| Item number | D1019202 | |
| Catalogue No | BTSD42V100M125 | |
| Description | British Standard fuse-link IEC BS88 gM Type A4 415VAC 240VDC 100M125A BTSD Offset Tag | |
| EAN/UPC Code | 3605340515633 | |
| Rated voltage AC IEC | 415 V | |
| Rated voltage DC IEC | 240 V | |
| In M Ich | 100M125 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Speed/Characteristic | gM | |
| Fuse Size | A4 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 70000 A²s | |
| Melting I2t | 16000 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 | 21 mm | |
| Product Width | 24.5 mm | |
| Product Length | 110 mm | |
| Sell Pack Quantity | 10 EA | |
| Sell Pack Weight | 0.6 kg | |
| Sell Pack Width | 117 mm | |
| Sell Pack Length | 218 mm | |
| Sell Pack Height | 38 mm | |
| Product group | Low Voltage IEC Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.06 kg | |
| Power Dissipation at Rated Current Value | 9.2 W | |
| HS Code | 85361090 | |
| Country of Manufacture | India |
Frequently Asked Questions
What is the Mersen BTSD42V100M125 used for?
It is a British Standard gM fuse-link designed to provide short-circuit protection for industrial motors, motor starters and associated control equipment.
What does the 100M125 rating mean?
The designation indicates a 100 A continuous current rating combined with a 125 A motor circuit rating, providing operating characteristics suited to motor loads and starting currents.
What voltage is the BTSD42V100M125 rated for?
The fuse-link is rated for operation at up to 415 V AC.
Does the BTSD42V100M125 provide overload protection?
It is principally intended for motor circuit short-circuit protection and should normally be coordinated with a suitable overload relay or motor protection device.
Where is the BTSD42V100M125 typically installed?
It is commonly installed in compatible British Standard fuse holders, fused switches, motor control centres, starter assemblies and industrial switchgear.
Trusted for Industrial Motor Protection
Mersen British Standard motor fuse-links are trusted by electrical engineers, panel builders and OEM manufacturers for dependable fault interruption, effective current limitation and reliable performance in demanding motor control installations.
