Mersen A072B2DAR0-18R Back-Up R-Rated Medium Voltage Fuse 7200VAC 18R Mounting: Bolted Style: DAR0 Visual…
Alternate Item Number: A072B2DAR0-18R
UPC: 782001805227
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Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- 7200V AC rated for medium voltage motor protection
- 18R rating with 390A continuous current at 40°C
- 50kA symmetrical interrupting rating for robust fault protection
- Bolt-in DAR0 mounting for direct connection to bus or terminals
- Integrated visual indicator for quick fault identification
- 3-inch diameter barrel with durable construction
- Designed for use in blast-proof equipment
Specifications
AC Voltage Rating | 7200 V |
Amperage Rating | 18 R |
Application | Short circuit protection of medium voltage motors and motor controllers |
Body Material | GMG |
Brand Name | Mersen |
Connection | Bolted |
Connection Material | Silver-Plated Copper |
Family Code | 142 |
Family Description | Med Voltage R Rated |
Interrupt Rating | 50 kA |
Material | bolt-on |
Mounting | Bolt-on |
Response Time | R-Rated |
Size | 19.25 x 3 x 7.63;488.95 x 76.2 x 193.802 in;mm |
Special Features | The Amp-Trap Bolt-in series are UL Recognized Bolt-in mounting for direct connection to bus or terminals Current-limiting for superior equipment protection Metal embossed catalog number and manufacturing date for lasting identification Blown-fuse indicator to give positive identification of open fuse Amp-Trap: 3" Barrel 2 lb tripped force - 0.50 Inch |
Standard | UL Recognized File E93367 |
Standard | UL |
Sub Brand | Amp-Trap® |
Type | Back-Up R-Rated Bolt-On Fuses for Motor Protection |
Type of Indicators | Visual Indicator |
Voltage Rating | 7200 VAC |
Package Dimensions (L x W x H) | 19.25 in x 3 in x 7.63 in |
Package Dimensions (L x W x H) | 488.95 mm x 76.2 mm x 193.802 mm |
Package Weight (Imperial) | 23.000 lb |
Package Weight (Metric) | 10.433 kg |
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
Frequently Asked Questions
What is the maximum voltage tested for the A072B series?
The maximum voltage tested for the A072B series is 65kA at 7.66kV.
What is the voltage rating for the A072B series fuses?
The A072B series fuses have a voltage rating of 7.2kV AC.
What is the interrupting rating for the A072B series fuses?
The A072B series fuses have an interrupting rating of 50kA Sym and 65kA Sym.
What is the amp rating range for the A072B series fuses?
The A072B series fuses are available in amp ratings from 2 to 24R and 19R to 57X.
Are Mersen Amp-Trap Bolt-In series fuses UL Recognized?
Yes, the Amp-Trap Bolt-in series are UL Recognized with File E93367.
What is the continuous amp rating at 40°C for A072B1DAR0-18R?
The continuous amp rating at 40°C for the A072B1DAR0-18R is 390 amps.
What is the minimum interrupting rating for A072B1DAR0-18R?
The minimum interrupting rating for the A072B1DAR0-18R is 1440 RMS Amps.
How many barrels does the A072B2DAR0-18R fuse have?
The A072B2DAR0-18R fuse has 2 barrels.
What is the purpose of Mersen R-Rated fuses?
Mersen R-Rated fuses are for short circuit protection of medium voltage motors and motor control centers.
How are Amp-Trap Bolt-In fuses mounted?
They feature bolt-in mounting for direct connection to equipment bus or terminal pads.
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.