Engineered for demanding industrial applications, this UltraSafe™ fuse holder accommodates 27×60 mm UL fuses, providing reliable protection for circuits up to 800 VAC or 800 VDC with a robust 2-pole design and visual indicator microswitch.
£477.16
The Mersen B227609, catalogue number US272M2IRING, is a premium UltraSafe™ modular fuse holder designed for 27 × 60 mm cylindrical fuse links. This double-pole fuse holder incorporates two auxiliary microswitches, a visual blown-fuse indicator and ring-lug terminal connections, making it an ideal solution for industrial power distribution and semiconductor protection systems.
Engineered for operation at up to 800 V AC and 800 V DC, the US272M2IRING forms part of Mersen's renowned Modulostar® CMS27 / UltraSafe™ US27 range. Its IP20 finger-safe construction protects operators during installation and fuse replacement while offering reliable performance in demanding industrial environments.
With a 140 A conventional free-air thermal current rating, DIN rail mounting and integrated remote indication capability, the B227609 is ideally suited to motor drives, UPS systems, converters, renewable energy equipment and industrial automation panels where rapid fault identification and dependable protection are essential.
The Mersen US272M2IRING is engineered to provide dependable support for cylindrical semiconductor and industrial fuse links while maximising operator safety. Its enclosed IP20 design minimises accidental contact with live components, even during fuse replacement, making it suitable for modern industrial control systems.
The integrated visual indication and dual auxiliary microswitches allow both local and remote monitoring of fuse status, enabling faster diagnostics and reducing maintenance downtime across critical power distribution equipment.
| Current | 125 A |
|---|---|
| Voltage | 800 V |
| Item number | B227609 |
| Catalogue No | US272M2IRING |
| Description | Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 2-Pole Visual Indicator Microswitch Ring lug IP20 |
| EAN/UPC Code | 3605340275759 |
| 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 | double pole, 2 microswitches |
| Indication System | Yes |
| Indication System Type | Visual Indicator Microswitch |
| Number of Poles | 2-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 | 80 mm |
| Product Length | 93.5 mm |
| Product Height | 302 mm |
| Sell Pack Quantity | 1 EA |
| Sell Pack Weight | 0.303 kg |
| Sell Pack Width | 169.9 mm |
| Sell Pack Length | 214.9 mm |
| Sell Pack Height | 104.9 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 B227609 is the Mersen US272M2IRING, a double-pole UltraSafe™ modular fuse holder designed for 27 × 60 mm cylindrical fuse links.
The fuse holder is rated for operation at up to 800 V AC and 800 V DC under both IEC and UL standards.
The US272M2IRING is a double-pole modular fuse holder.
Yes. It includes a visual blown-fuse indicator together with two auxiliary microswitches for remote monitoring.
The fuse holder uses secure ring-lug terminal connections for industrial wiring applications.
Yes. The US272M2IRING is designed for DIN rail mounting in accordance with EN 60715.
Mersen UltraSafe™ fuse holders are trusted by OEMs, switchgear manufacturers and panel builders worldwide for reliable protection, safe installation and dependable monitoring of industrial electrical systems.
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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...