Mersen ALS450 Forklift Truck ALS 125VAC 125VDC 450A Fast-Acting Blade
Alternate Item Number: ALS450
UPC: 782001791698
Documents & Media
Contact for Pricing
Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.
Overview
- 125V AC/DC rated for versatile compatibility with battery-powered equipment
- 450A current capacity with 10kA interrupting rating for superior fault protection
- Stud-mounted bolt-in design for secure installation in harsh environments
- Time-delay rating minimizes nuisance tripping during startup surges
- UL recognized component (File E60314) for global compliance
Specifications
AC Voltage Rating | 125 V |
Amperage Rating | 450 A |
Application | Forklift trucks Battery hand trucks Motorized work platforms Battery systems |
Body Material | PolyTube |
Brand Name | Mersen |
Connection | Blade |
Connection Material | Copper |
DC Voltage Rating | 125 V |
Interrupt Rating | 10 kA |
Mounting | Bolted |
Size | 4.71 x 1.12 in |
Size | 119.634 x 28.448 mm |
Special Features | All fuses are AC and DC rated Expanded ampere ratings Time-delay and general purpose types |
Standard | UL recognized components (All Products) File E60314 |
Type | Forklift Truck Fuses |
Voltage Rating | 125 VAC |
Package Dimensions (L x W x H) | 4.71 in x 1.12 in x 1.12 in |
Package Dimensions (L x W x H) | 119.634 mm x 28.448 mm x 28.448 mm |
Package Weight (Imperial) | 0.260 lb |
Package Weight (Metric) | 0.118 kg |

GPM-SRR90
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
C331156
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 types of equipment are these fuses designed for?
These fuses are designed for DC battery powered equipment like forklift trucks, hand trucks, and motorized work platforms.
What is the maximum voltage rating for these fuses?
The ACK, ACL, and ALS fuses can handle up to 125V AC or DC. The CNL fuses are rated for 80V AC/DC, and CNN fuses for 130V AC and 80V DC.
What is the amperage range for ACK fuses?
ACK fuses are available in amperage ratings from 1A to 400A.
What is the amperage range for ACL fuses?
ACL fuses are available in amperage ratings from 30A to 120A.
What is the amperage range for ALS fuses?
ALS fuses are available in amperage ratings from 100A to 500A.
What is the amperage range for CNL fuses?
CNL fuses are available in amperage ratings from 35A to 500A.
What is the amperage range for CNN fuses?
CNN fuses are available in amperage ratings from 10A to 800A.
Are these fuses rated for both AC and DC applications?
Yes, all listed fuses (ACK, ACL, ALS, CNL, CNN) are rated for both AC and DC applications.
What is the interrupting rating for ACK fuses?
ACK fuses have an interrupting rating of 10kA for both AC and DC.
What is the interrupting rating for ACL fuses?
ACL fuses have an interrupting rating of 100kA for AC and 10kA for DC.
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.










