The Fuse Holder UltraSafe™ US273 offers secure, touch-safe (IP20) protection for 27x60mm UL fuses, supporting 800VAC and 800VDC applications. Its 3-pole design and Faston lugs guarantee quick, reliable installation in high-reliability industrial power distribution and control systems.
£250.51
The Mersen J320007 is a genuine UltraSafe™ US273 modular fuse holder designed for 27 × 60 mm cylindrical fuse-links. Part of the renowned Modulostar® CMS27 / UltraSafe™ US27 range, this robust 3-pole fuse holder provides safe, reliable protection for industrial power distribution and semiconductor applications while meeting both IEC and UL requirements.
Designed with operator safety in mind, the US273 features IP20 finger-safe protection, even during fuse replacement. Its heavy-duty thermoplastic construction offers excellent mechanical strength and long service life, making it ideal for industrial control panels, motor drives, UPS systems and OEM equipment.
The J320007 accommodates 27 × 60 mm fuse-links, supports 800 V AC/DC systems and incorporates Faston lug connections for efficient installation. The modular design also allows additional pole configurations using compatible assembly kits and optional auxiliary microswitches for remote fuse status indication.
The Mersen J320007 is engineered for industrial three-phase installations where reliable fuse mounting and operator safety are critical. Its finger-safe construction helps reduce accidental contact with live components, while the modular design simplifies installation and future system expansion.
Suitable for protecting semiconductor circuits, motor drives, UPS systems and industrial distribution equipment, the UltraSafe™ US273 delivers dependable performance in demanding environments requiring high voltage capability and long-term reliability.
| Phase | Three Phase |
|---|---|
| Item number | J320007 |
| Catalogue No | US273 |
| Description | Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 3-Pole Faston Lugs IP20 |
| EAN/UPC Code | 3605340358148 |
| 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 |
| Number of Poles | 3-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 | 119.9 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 | 119.9 mm |
| Sell Pack Length | 150.1 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 |
The J320007 is designed for 27 × 60 mm cylindrical fuse-links.
This model is a 3-pole (US273) fuse holder designed for three-phase electrical systems.
No. The J320007 is the standard version supplied without a visual blown-fuse indicator. Indicator versions are available separately.
Yes. It is designed for convenient DIN rail installation in industrial electrical panels.
Yes. The UltraSafe™ design provides IP20 finger-safe protection, including during fuse replacement.
Mersen UltraSafe™ modular fuse holders are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for safe fuse installation, dependable operation and long-term industrial reliability.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...