The UltraSafe™ US271NIRING fuse holder offers reliable protection for circuits rated up to 800VAC/800VDC using 27x60mm UL fuses. This 1-pole plus Neutral device provides enhanced safety and easy maintenance with a clear visual indicator for fuse status and secure termination via ring lugs.
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Why Choose the Mersen E223518 US271NIRING UltraSafe™ Fuse Holder?
The Mersen E223518, catalogue number US271NIRING, is a premium UltraSafe™ modular fuse holder designed for 27 × 60 mm UL fuse links. Engineered as a 1-pole + Neutral unit, it provides safe, reliable protection for industrial power distribution systems operating at up to 800 V AC/DC. It incorporates a visual blown-fuse indicator and secure ring lug terminals for dependable operation in demanding applications.
Part of the renowned Mersen Modulostar® CMS27 / UltraSafe™ US27 range, the US271NIRING features an IP20 finger-safe design, allowing fuse replacement without exposing operators to live components. The robust thermoplastic construction offers excellent mechanical strength and long service life in industrial control panels, switchgear and power distribution equipment.
Designed for DIN rail mounting and compatible with 27 × 60 mm UL fuse links, this modular fuse holder supports both AC and DC applications while providing easy maintenance and improved operator safety.
Key Advantages
Designed for 27 × 60 mm UL fuse links.
800 V AC/DC rated insulation and operating voltage.
1-pole + Neutral configuration.
Integrated visual blown-fuse indicator.
IP20 finger-safe protection.
Secure ring lug terminal connections.
DIN rail mounting for rapid installation.
Suitable for industrial AC and DC power systems.
Key Features
Mersen UltraSafe™ US271NIRING.
Catalogue number: US271NIRING.
Item number: E223518.
27 × 60 mm fuse size compatibility.
1-pole + Neutral design.
Visual fuse indication.
Ring lug terminal connection.
DIN rail mounting (EN 60715).
IP20 finger-safe enclosure.
Suitable for AC and DC installations.
Technical Specifications
Manufacturer: Mersen
Series: Modulostar® CMS27 / UltraSafe™ US27
Item number: E223518
Catalogue number: US271NIRING
Product type: Modular fuse holder
Fuse size: 27 × 60 mm
Number of poles: 1 Pole + Neutral
Rated voltage AC (IEC): 800 V
Rated voltage DC (IEC): 800 V
Rated voltage AC (UL): 800 V
Rated voltage DC (UL): 800 V
Conventional free air thermal current (Ith): 140 A
Rated insulation voltage (Ui): 800 V
Rated impulse withstand voltage (Uimp): 8 kV
Maximum fuse-link power dissipation: 11 W
Protection class: IP20
Indication system: Visual indicator
Terminal type: Ring lug
Mounting: DIN rail (EN 60715)
Operating temperature: -25°C to +60°C
Storage temperature: -25°C to +80°C
Product dimensions: 80 × 93.5 × 302 mm
Product weight: Approx. 0.303 kg
EAN: 3605340261882
RoHS compliant: Yes
Safe and Reliable Modular Fuse Protection
The Mersen E223518 combines operator safety with dependable circuit protection. Its finger-safe IP20 design, integrated visual indicator and robust modular construction make it ideal for industrial switchboards, renewable energy systems, motor control centres and power distribution equipment where safe fuse replacement and reliable operation are essential.
Typical Applications
Industrial control panels.
Power distribution systems.
Motor control centres.
Renewable energy installations.
UPS systems.
Industrial automation equipment.
Machine builders and OEM panels.
Electrical switchgear assemblies.
Technical Specifications
Phase
Single Phase
Item number
E223518
Catalogue No
US271NIRING
Description
Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 1-pole+N Visual Indicator Ring lug IP20
EAN/UPC Code
3605340261882
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 + neutral conductor
Indication System
Yes
Indication System Type
Visual Indicator
Number of Poles
1-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
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
220 mm
Sell Pack Height
110 mm
Product group
Fuse Holders
Conventional Free Air thermal Current With Fuse-Links Ith
140 A
Product Weight
0.303 kg
Frequently Asked Questions
What is the Mersen E223518 used for?
The E223518 is a modular fuse holder designed for 27 × 60 mm UL fuse links used in industrial AC and DC electrical systems.
Which fuse size does the US271NIRING accept?
It is designed specifically for 27 × 60 mm fuse links.
Does the fuse holder include a blown-fuse indicator?
Yes. The US271NIRING features an integrated visual blown-fuse indicator for quick fault identification.
What is the maximum operating voltage?
The fuse holder is rated for 800 V AC and 800 V DC according to IEC and UL specifications.
How is the fuse holder mounted?
The E223518 is designed for installation on a standard DIN rail (EN 60715).
Trusted Protection for Industrial Electrical Systems
Mersen UltraSafe™ fuse holders are trusted worldwide by OEMs, panel builders and industrial engineers for delivering safe, reliable and service-friendly fuse protection in demanding industrial applications.
Phase
Single Phase
Item number
E223518
Catalogue No
US271NIRING
Description
Fuse Holder UltraSafe™ 800VAC 800VDC UL Fuse size 27x60 1-pole+N Visual Indicator Ring lug IP20
EAN/UPC Code
3605340261882
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 + neutral conductor
Indication System
Yes
Indication System Type
Visual Indicator
Number of Poles
1-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
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
220 mm
Sell Pack Height
110 mm
Product group
Fuse Holders
Conventional Free Air thermal Current With Fuse-Links Ith
140 A
Product Weight
0.303 kg
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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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...