Mersen FEXN-81-81-B1 Mersen's complete line of single and dual pole in-line fuseholders with integral neutral…
Alternate Item Number: 782001463410
UPC: 782001463410
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Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- 2-pole design with integral neutral link for flexible fuse compatibility (midget or Class CC)
- Captive securing nuts and screws for rapid, tool-free installation and reduced field assembly time
- Three internal O-rings per pole provide water-resistant sealing (color-coded red for dual-pole units)
- Optional breakaway feature safely disconnects load during pole knockdown; fuses remain encapsulated
- Rated 600VAC/DC, 30A, 155°C temperature rating; SCCR 200kA (Class CC) or 100kA (midget fuses)
Specifications
Amperage Rating | 30 A |
Application | Street lighting Parking lot lighting Traffic signaling Sports lighting Boats and marinas Humid/corrosive environments |
Brand Name | Ferraz Shawmut |
Class | Midget |
Connection | Single Set Screw |
Mounting | In-Line |
Phase | 2 |
Special Features | Breakaway version quickly disconnects line side during pole knockdown in compliance with state and federal highway commission standards 3 O-rings per pole for watertight applications Colored O-rings for quick detection Single and dual poles Accepts midget or class CC fuses Wide assortment of terminal variations High heat, impact resistant insulator Captive nut or screw for quick installations Polarized dual pole provides simultaneous disconnection Permanently installed neutral versions quickly identified by white nuts Environmentally friendly no-lead solder used Highly visible catalog number even with insulation boots installed Wire gauge size identified on insulation boots for quick, accurate trimming |
Standard | UL Recognized Component to standard 4248-1, File E52283 CSA Certified C22.2, Class 6225, File 32169 |
Type | In-line Fuse Holders |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 5.6 IN x 0.987 IN x 0.987 IN |
Package Dimensions (L x W x H) | 14.224 cm x 25.0698 mm x 25.0698 mm |
Package Weight (Imperial) | 0.400 L |
Package Weight (Metric) | 0.181 kg |
LEBBA
The Littelfuse 600 V in-line watertight fuse holders are the ideal answer for all high humidity and corrosive environments where fuses are required. Available in both breakaway and non-breakaway, single and double pole versions, these fuse holders allow maximum flexibility for any application.
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Unclassified Transformrs. Small Core & Cl Tran. 9t58 Ip C&C Kit Xfrmr. Fuse Kits For EncapsulTED Xfmrs. 0000G24
FEXN-81-81
Mersen's complete line of single and dual pole in-line fuseholders with integral neutral link. The fuseholders are designed for quick installation. Securing nuts or screws are captive thus speeding installation by reducing the need to locate and assemble loose components in the field. Three internal O-rings per pole seal the fuseholder providing a water-resistant compartment for the fuse. The captive O-rings are colored (blue for single pole and red for dual pole) for quick detection. Optional cone shaped insulator boots can be slipped on to provide a watertight seal (breakaway versions come with boots standard). Both single and dual pole versions have an optional breakaway feature which safely disconnects the load in case of a pole knockdown. Fuses remain safely encapsulated within the watertight fuse holder on the load side. Once the pole has been reinstalled the fuseholder can be easily reconnected. 600 Volts 30 Amps 2 pole 81-81 series.Frequently Asked Questions
What is the maximum voltage and amperage rating?
The fuse holders are rated for 600VAC/DC and a maximum of 30A.
What types of fuses can be used with these fuse holders?
These fuse holders accommodate either 1-1/2” x 13/32” midget or Class CC fuses.
What is the temperature rating of the fuse holders?
The fuse holders have a temperature rating of 155º C.
What are the applications for these fuse holders?
These fuse holders are suitable for street lighting, parking lot lighting, traffic signaling, sports lighting, boats and marinas, and humid/corrosive environments.
What is the SCCR for Class CC and Midget fuses?
The SCCR is 200kA for Class CC fuses and 100kA for Midget fuses.
What is the breakaway feature for?
The optional breakaway feature safely disconnects the load in case of a pole knockdown, complying with highway commission standards.
What is the purpose of the colored O-rings?
The captive O-rings are colored (blue for single pole and red for dual pole) for quick detection.
How are permanently installed neutral versions identified?
Permanently installed neutral versions (FEBN) are quickly identified by white nuts.
How do the O-rings provide water resistance?
Three internal O-rings per pole seal the fuse holder, providing a water-resistant compartment for the fuse.
Are insulator boots included with all models?
Optional cone shaped insulator boots can be slipped on to provide a watertight seal; breakaway versions come with boots standard.
Frequently Asked Questions about Mersen
What industries and applications are Mersen products used for?
Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.
What are the main product lines offered by Mersen?
Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.
What are the key features of Mersen products?
Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.
What environmental ratings do Mersen products have?
Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.
What accessories are available for Mersen products?
Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.
How are Mersen products typically installed?
Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.
What certifications and standards do Mersen products comply with?
Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.
What technical support does Mersen offer?
Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.