The BTMF69V355 fuse-link is engineered to IEC BS88 standards, offering reliable circuit protection with a rated voltage of 690VAC and 460VDC and 355A current capacity. Features central bolted tag mounting and ceramic body.
£165.94
The Mersen BTMF69V355 is a high-current industrial bolted tag fuse link designed to provide reliable electrical protection in demanding low-voltage power distribution systems. Manufactured by Mersen, it helps protect cables, switchgear and connected equipment by safely interrupting excessive fault currents before serious damage can occur.
Engineered for industrial installations, the BTMF69V355 combines robust construction with effective current-limiting performance. Its bolted tag terminals provide a secure mechanical and electrical connection within compatible fuse holders, fuse switches and switch-disconnectors.
With a rated current of 355 A and an operating voltage of up to 690 V AC, the BTMF69V355 is suitable for high-capacity distribution boards, industrial control systems and machinery installations. Its dependable fault interruption capability helps reduce thermal and mechanical stress on downstream equipment.
The Mersen BTMF69V355 is designed to interrupt dangerous fault currents rapidly, helping prevent excessive heat and mechanical forces from damaging electrical equipment. Its current-limiting performance restricts the peak current and energy allowed to pass through the circuit during a serious electrical fault.
Correct fuse selection and coordination can help improve system reliability, minimise equipment damage and reduce unplanned downtime. The BTMF69V355 is particularly suited to industrial installations requiring dependable protection at currents up to 355 A and voltages up to 690 V AC.
| Item number | L1006628 |
|---|---|
| Catalogue No | BTMF69V355 |
| Description | British Standard fuse-link IEC BS88 gG Type B4 690VAC 460VDC 355A BTMF Central Bolted Tag |
| EAN/UPC Code | 3605340485134 |
| Rated voltage AC IEC | 690 V |
| Rated voltage DC IEC | 460 V |
| Ampere Rating | 355 A |
| RoHS Compliant | Yes |
| AC or DC | AC/DC |
| Speed/Characteristic | gG |
| Fuse Size | B4 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 1975000 A²s |
| Melting I2t | 395000 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 | Central Bolted Tag |
| Product Diameter | 59.1 mm |
| Product Length | 138 mm |
| Sell Pack Quantity | 1 EA |
| Sell Pack Weight | 0.618 kg |
| Sell Pack Width | 70 mm |
| Sell Pack Length | 128 mm |
| Sell Pack Height | 62 mm |
| Product group | Low Voltage IEC Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.618 kg |
| Power Dissipation at Rated Current Value | 32 W |
| HS Code | 85361090 |
| Country of Manufacture | India |
The BTMF69V355 is used to protect high-current industrial electrical circuits, cables, switchgear and connected equipment against damaging fault currents.
The Mersen BTMF69V355 has a rated current of 355 A.
The fuse link is designed for electrical systems operating at up to 690 V AC.
The fuse interrupts excessive fault current and limits the electrical energy passing into downstream cables, switchgear and equipment.
The BTMF69V355 is typically installed in a compatible industrial fuse holder, fuse switch or switch-disconnector within a high-current distribution system.
Mersen industrial fuse links are widely used by electrical engineers, panel builders and maintenance professionals to provide reliable fault interruption and effective current limitation in demanding power distribution systems.
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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...