British Standard fuse-link IEC BS88 gM Type A1 550VAC 250VDC 20M25A BNIT Offset Tag offering reliable circuit protection with high breaking capacity and robust construction.
£5.07
The Mersen BNIT55V20M25 is a high-performance BS88 offset tag fuse link engineered to provide reliable short-circuit protection for industrial motor circuits and associated electrical equipment. Manufactured by Mersen, this gM motor protection fuse is designed for motor control centres, switchgear, distribution boards and OEM machinery where dependable fault protection is essential.
Manufactured in accordance with EN 60269-2 and BS88 Part 2, the BNIT55V20M25 is designed specifically for motor protection applications. Its gM characteristic allows normal motor starting currents to pass while rapidly interrupting damaging short-circuit faults, helping to protect motors, cables, contactors and associated equipment.
Featuring a 20M25 A motor fuse rating with 550 V AC and 250 V DC ratings, this Type A1 offset tag fuse link is suitable for installation in compatible fuse holders, fuse switch disconnectors and directly onto busbars in industrial power distribution systems.
gM fuse links are specifically designed to protect motors against short-circuit faults while allowing the high inrush currents generated during motor starting. They are typically coordinated with an overload relay to provide complete motor protection and help minimise damage to electrical equipment during fault conditions.
The Mersen BNIT55V20M25 combines excellent current limitation with a compact BS88 offset tag design, making it suitable for industrial switchgear, motor starters and power distribution systems where dependable protection is required.
| Item number | J1019230 |
|---|---|
| Catalogue No | BNIT55V20M25 |
| Description | British Standard fuse-link IEC BS88 gM Type A1 550VAC 250VDC 20M25A BNIT Offset Tag |
| EAN/UPC Code | 3605340515893 |
| Rated voltage AC IEC | 550 V |
| Rated voltage DC IEC | 250 V |
| In M Ich | 20M25 A |
| RoHS Compliant | Yes |
| AC or DC | AC/DC |
| Speed/Characteristic | gM |
| Fuse Size | A1 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 2100 A²s |
| Melting I2t | 420 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 | 13.5 mm |
| Product Width | 14.5 mm |
| Product Length | 56 mm |
| Sell Pack Quantity | 10 EA |
| Sell Pack Weight | 0.16 kg |
| Sell Pack Width | 65 mm |
| Sell Pack Length | 70 mm |
| Sell Pack Height | 30 mm |
| Product group | Low Voltage IEC Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.016 kg |
| Power Dissipation at Rated Current Value | 1.6 W |
| HS Code | 85361050 |
| Country of Manufacture | India |
The Mersen BNIT55V20M25 is a BS88 gM fuse link designed to provide short-circuit protection for industrial motors and associated electrical circuits.
The 20M25 A designation identifies the fuse as a gM motor protection fuse designed to tolerate normal motor starting currents while providing rapid short-circuit protection.
The fuse is rated for operation up to 550 V AC and 250 V DC.
No. A gM fuse primarily provides short-circuit protection and should normally be used alongside a suitable overload relay or motor protection device.
It is commonly installed in compatible BS88 fuse holders, fuse switch disconnectors, busbar assemblies and industrial motor control equipment.
Mersen BS88 motor fuse links are widely specified by electrical engineers, panel builders and OEM manufacturers for dependable fault protection, high interruption capability and reliable industrial motor circuit protection.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...