Mersen A4BT1800 Fuse A4BT - Class L - Time-Delay 600VAC 500VDC 1800A Blade Amp-Trap®
Alternate Item Number: A4BT1800
UPC: 782001939977
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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
- Class L time-delay fuse with 10-second delay at 500% rated current
- Rated 600VAC / 500VDC, 1800A continuous current
- High interrupting rating for robust short-circuit protection
- Allows 100% equipment rating for normal loads up to full ampere rating
- Blade-style Amp-Trap® design for industrial circuit protection
Specifications
AC Voltage Rating | 600 V |
Amperage Rating | 1800 A |
Application | Motors Motor controllers Transformers Mains Feeders |
Body Material | GMG |
Brand Name | Mersen |
Class | Class L |
Connection | Blade |
Connection Material | Silver-Plated Copper |
Interrupt Rating | 200 kA |
Mounting | Bolted |
Size | 10.75 x 3.5;273.05 x 88.9 in;mm |
Size | 10.75 x 3.5 in |
Size | 273.05 x 88.9 mm |
Special Features | Unique dimensions prevent replacement by other fuse classes. Blade-stamped catalog numbers for permanent identification Glass melamine body and plated terminals provide superior reliability in harsh environments |
Standard | UL Listed to Standard 248-10, File E2137 CSA Certified to Standard C22.2, No. 248.68 Self-certified for DC per UL248 (601-2000) |
Sub Brand | Amp-Trap® |
Type | Class L |
Voltage Rating | 600 VAC |
Package Dimensions (L x W x H) | 10.75 in x 3.5 in x 3.5 in |
Package Dimensions (L x W x H) | 273.05 mm x 88.9 mm x 88.9 mm |
Package Weight (Imperial) | 8.130 lb |
Package Weight (Metric) | 3.688 kg |
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Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
LCC5
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 DC voltage rating for A4BT fuses?
A4BT fuses are suitable for DC applications up to 500VDC.
What is the interrupting rating for A4BT fuses in AC and DC?
A4BT fuses have a 200kA I.R. AC and a 100kA I.R. DC.
What is the time delay characteristic of A4BT fuses?
A4BT fuses have a 10-second time delay at 500% of fuse rating.
What applications are A4BT fuses suitable for?
A4BT fuses are suited for protecting mains, feeders, general circuits, motors, motor controllers, and transformers.
What are the ampere ratings available for A4BT fuses?
A4BT fuses are available in ampere ratings from 200A to 2000A.
What standards are A4BT fuses UL and CSA certified to?
A4BT fuses are UL Listed to standard 248-10 and CSA Certified to standard C22.2 No. 248.10.
Can A4BT fuses be replaced by other fuse classes?
No, unique dimensions prevent replacement by other fuse classes.
What are the body and terminal materials of A4BT fuses?
A4BT fuses have a glass melamine body and plated terminals for reliability.
What is the AC voltage rating for A4BT fuses?
A4BT fuses are rated for 600VAC.
What is the purpose of the 10-second time delay in A4BT fuses?
The 10-second time delay is ideal for large motors and other loads with high inrush.
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.