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MERSEN FUSE US 271I US271I
The UltraSafe™ US271I fuse holder offers reliable circuit protection for demanding industrial applications, accommodating 27×60 mm UL fuses with both 800VAC and 800VDC ratings. Features include a visual indicator, single-pole design, Faston lugs, and IP20 touch-safe protection.
£52.52
Why Choose the Mersen J226420 UltraSafe™ Fuse Holder?
The Mersen J226420 is a genuine UltraSafe™ US271I modular fuse holder designed for 27 × 60 mm cylindrical fuse-links. Part of the renowned Modulostar® CMS27 / UltraSafe™ US27 range, this single-pole fuse holder combines finger-safe operation, high voltage ratings and dependable performance for demanding industrial electrical installations.
Designed to meet both IEC and UL requirements, the J226420 offers 800 V AC/DC ratings and features an integrated visual blown-fuse indicator for rapid fault identification. The robust thermoplastic construction provides IP20 finger-safe protection, even during fuse replacement, helping improve operator safety and minimise maintenance downtime.
Its Faston lug terminals allow quick installation, while optional auxiliary microswitch accessories enable remote fuse status indication for industrial automation and control systems. The modular design also allows multiple poles to be assembled using compatible linking kits where required.
Key Advantages
- Genuine Mersen UltraSafe™ US271I modular fuse holder.
- Suitable for 27 × 60 mm cylindrical fuse-links.
- 800 V AC / 800 V DC IEC and UL rated.
- Integrated visual blown-fuse indicator.
- IP20 finger-safe protection, including during fuse replacement.
- Compatible with optional auxiliary microswitches for remote indication.
Key Features
- Manufacturer: Mersen
- Series: Modulostar® CMS27 / UltraSafe™ US27
- Catalogue number: US271I
- Item number: J226420
- Single-pole modular fuse holder.
- Visual blown-fuse indicator.
- Faston lug connections.
- DIN rail mounting compatible.
- Heavy-duty thermoplastic construction.
- Compatible with multipole assembly kits.
Designed for Safe Industrial Fuse Protection
The Mersen J226420 provides a reliable and safe method of mounting 27 × 60 mm fuse-links in industrial electrical systems. Its finger-safe design enhances operator protection, while the visual fuse indicator enables maintenance personnel to quickly identify operated fuses and restore equipment to service more efficiently.
Suitable for OEM equipment, industrial control panels, motor drives, photovoltaic systems and power distribution equipment, the UltraSafe™ range delivers dependable performance in demanding applications where safety and reliability are essential.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Power distribution equipment.
- Variable frequency drives.
- Renewable energy systems.
- OEM electrical machinery.
- Industrial automation systems.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Fuse Size | 27x60 mm | |
| Voltage | 800 V | |
| Item number | J226420 | |
| Catalogue No | US271I | |
| Description | Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 1-pole Visual Indicator Faston Lugs IP20 | |
| EAN/UPC Code | 3605340269000 | |
| Rated voltage AC UL | 800 V | |
| Rated voltage DC UL | 800 V | |
| Rated voltage AC IEC | 800 V | |
| Rated voltage DC IEC | 800 V | |
| Ampere Rating | 140 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC/DC | |
| Fuse Size | 27x60 | |
| Design Details | single pole | |
| Indication System | Yes | |
| Indication System Type | Visual Indicator | |
| Number of Poles | 1-pole | |
| Torque Rating | 3.5 Nm | |
| Rated Impulse Withstand Voltage | 8 kV | |
| Rated Insulation Voltage | 800 V | |
| Max Power dissipation of Fuse Links Pn | 11 W | |
| Installation Mounting | DIN rail acc. EN 60715 | |
| Product Width | 39.9 mm | |
| Product Length | 93.5 mm | |
| Product Height | 149.4 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 0.909 kg | |
| Sell Pack Width | 154.9 mm | |
| Sell Pack Length | 165.1 mm | |
| Sell Pack Height | 100.1 mm | |
| Product group | Fuse Holders | |
| Conventional Free Air thermal Current With Fuse-Links Ith | 140 A | |
| Product Weight | 0.303 kg | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What fuse size does the Mersen J226420 accept?
The J226420 is designed for 27 × 60 mm cylindrical fuse-links.
Does the J226420 include a blown-fuse indicator?
Yes. The US271I version features an integrated visual indicator that clearly shows when the fuse has operated.
What voltage ratings does this fuse holder support?
The holder is rated for 800 V AC and 800 V DC under both IEC and UL standards.
Can this fuse holder be mounted on a DIN rail?
Yes. The J226420 is designed for convenient DIN rail installation in industrial electrical panels.
Is the J226420 finger safe?
Yes. The UltraSafe™ design provides IP20 finger-safe protection, including during fuse replacement.
Trusted Fuse Mounting Solutions from Mersen
Mersen UltraSafe™ modular fuse holders are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for safe fuse installation, reliable operation and long-term industrial performance.
