Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE US 27 3 NI US273NI
The US273NI fuse holder supports UL 27x60mm fuses for AC and DC circuits up to 800 V, featuring a 3-pole plus neutral design with visual indicator and Faston lugs, IP20 rated for finger safety.
£223.54
Why Choose the Mersen N226424 UltraSafe™ Modular Fuse Holder?
The Mersen N226424 is a heavy-duty UltraSafe™ modular fuse holder designed for 27 × 60 mm cylindrical fuse links. Also identified by catalogue number US273NI, this premium fuse holder forms part of the trusted Modulostar® CMS27 – UltraSafe™ US27 range, offering safe, reliable and finger-safe installation for industrial power distribution and semiconductor protection systems.
Featuring a 3-pole + neutral (3P+N) configuration, integrated visual blown fuse indication and Faston lug terminals, the N226424 simplifies installation and maintenance while enhancing operator safety. Its IP20 finger-safe construction protects against accidental contact, even during fuse replacement, making it ideal for modern switchgear and industrial control panels.
Rated for 800 V AC / 800 V DC with a conventional thermal current of 140 A, the Mersen N226424 is suitable for demanding industrial applications including motor control centres, power converters, renewable energy installations and OEM machinery.
Key Advantages
- UltraSafe™ IP20 finger-safe modular fuse holder.
- Designed for 27 × 60 mm cylindrical fuse links.
- 3-pole + neutral (3P+N) configuration.
- 800 V AC / 800 V DC voltage rating.
- 140 A conventional thermal current (Ith).
- Integrated visual blown fuse indicator.
- Faston lug connections for quick installation.
- Compatible with optional auxiliary microswitches.
Key Features
- Mersen Modulostar® CMS27 – UltraSafe™ US27 series.
- Catalogue number: US273NI.
- Compatible with 27 × 60 mm cylindrical fuse links.
- Three-pole plus neutral design.
- Integrated visual fuse status indication.
- Faston lug terminals.
- IP20 touch-safe protection.
- Field-expandable modular construction.
- Accepts optional remote indication microswitches.
- Manufactured from durable thermoplastic and thermoset insulating materials.
Designed for Safe Industrial Fuse Protection
The Mersen N226424 combines safe fuse installation with reliable long-term performance. Its IP20 finger-safe construction helps protect personnel during installation and fuse replacement, while the integrated visual indicator enables rapid identification of operated fuse links without dismantling equipment.
Its modular design also allows additional accessories, including auxiliary microswitches and pole linking kits, making the holder suitable for both standard and customised industrial switchgear assemblies.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Variable speed drives.
- Power converters and rectifiers.
- Renewable energy systems.
- Semiconductor protection installations.
- OEM electrical equipment.
- Industrial switchgear and distribution panels.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Visual indicator | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Fuse Size | 27x60 mm | |
| Voltage | 800 V | |
| Item number | N226424 | |
| Catalogue No | US273NI | |
| Description | Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 3-Pole+N Visual Indicator Faston Lugs IP20 | |
| EAN/UPC Code | 3605340269086 | |
| 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 | triple pole + neutral conductor | |
| Indication System | Yes | |
| Indication System Type | Visual Indicator | |
| Number of Poles | 3-Pole+N | |
| 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 | 160 mm | |
| Product Length | 93.5 mm | |
| Product Height | 149.4 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.303 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 is the Mersen N226424 used for?
The N226424 is a modular UltraSafe™ fuse holder designed to securely mount and protect 27 × 60 mm cylindrical fuse links in industrial electrical installations.
Which fuse size fits the N226424?
The fuse holder is designed specifically for 27 × 60 mm cylindrical fuse links.
What is the voltage rating?
The N226424 is rated for 800 V AC and 800 V DC under both IEC and UL standards.
Does the fuse holder include a blown fuse indicator?
Yes. The N226424 incorporates an integrated visual indicator to simplify identification of an operated fuse.
Can remote indication be added?
Yes. The Modulostar® UltraSafe™ range supports optional auxiliary microswitches for remote blown-fuse signalling.
Trusted by Industrial Engineers Worldwide
Mersen UltraSafe™ modular fuse holders are trusted worldwide for their finger-safe design, reliable electrical performance and dependable protection in demanding industrial power applications.
