Mersen S1202985 - The Mersen ABAT12E fuse (SKU: S1202985) is engineered for high-performance DC applications, specifically protecting battery containers and inverters. Designed for 1200VDC systems, this fuse offers current ratings from 800A to 1800A. It features a high Max. Interrupting Rating and limited power loss, ensuring reliable operation. The ABAT12E range is UL recognized, providing assurance of quality and safety. Manufactured by Mersen in the US, these fuses are built for demanding DC power protection needs.
Mersen

S1202985

Alternate Item Number: ABAT12E1400-BIA


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Overview

The Mersen ABAT12E fuse (SKU: S1202985) is a UL-recognized DC over-current protection solution engineered for high-voltage battery systems and inverters operating at 1200VDC. This fuse provides reliable fault current interruption with current ratings from 800A to 1800A, ensuring compatibility with large-scale energy storage systems, electric vehicle (EV) battery packs, and industrial DC power applications. Designed for DC applications, the ABAT12E features low watt losses and high cycling performance, minimizing power dissipation while maintaining operational efficiency. Its compact design optimizes space in battery containers and inverter enclosures, making it ideal for high-density power systems. The fuse offers a high maximum interrupting rating (IR) and limited power loss, delivering consistent protection against overcurrent conditions. Manufactured in the US by Mersen, the ABAT12E meets stringent quality and safety standards, including UL recognition. It is specifically tested for DC applications with L/R ≤ 1ms, ensuring rapid response to fault conditions. Applications include battery pack protection, battery disconnect units (BDU), battery junction boxes, DC contactor backup, and maintenance safety disconnects (MSD) in EV/HEV, electrical energy storage, and supercapacitor systems. Key specifications: Current ratings from 800A to 1800A, maximum voltage of 1200VDC, UL-recognized, low watt losses, high cycling performance, and compact design. Compatible with Mersen’s EVpack-fuse line-up for comprehensive DC over-current protection.
  • Current ratings: 800A to 1800A for 1200VDC systems
  • UL-recognized for safety and quality assurance
  • Low watt losses and high cycling performance
  • Compact design for space-constrained applications
  • Tested for DC applications with L/R ≤ 1ms

Specifications

Amperage Rating
1400 A
Application
Protection of inverters Battery container protection Battery rack / string protection Power Conversion System (PCS) protection Protection of Battery Connection Panel (BCP) DC Systems protection
Body Material
Ceramic
Brand Name
Mersen
Connection
End Contact with Threaded Holes
Connection Material
Silver-Plated Brass
Current Rating
800A-1800A
Current Rating
800A to 1800A
DC Voltage Rating
1200 V
Mounting
Bolted
Series
ABAT12E
Size
4.31 x x in
Size
109.6 x x mm
Special Features
Designed for DC applications Dedicated to battery protection Fastest of their category Compactness High Max. Interrupting Rating Several terminals can be provided
Standard
UL Recognized - UL 248-13 CSA C22.2
Type
Battery Energy Systems
Type Of Indicators
Striker
Voltage Rating
1200 Vdc
Package Weight (Imperial)
6.834 lb
Package Weight (Metric)
3.100 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.

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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 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.