Mersen A50P800-4TA High Speed Fuse Amp-Trap® A50P 500VAC 450VDC 800A Blade TA Indicator
Alternate Item Number: A50P800-4TA
UPC: 782001944926
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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
- 800A current rating for high-power DC applications
- 500VAC / 450VDC voltage rating for versatile compatibility
- Blade TA indicator for quick status verification
- Lower I²t for faster fault response and reduced thermal stress
- Designed for DC drives, UPS systems, and similar critical applications
Specifications
AC Voltage Rating | 500 V |
Amperage Rating | 800 A |
Application | Protection of DC drives, UPS and other equipment of 500 volts or less |
Brand Name | Mersen |
Case | GMG |
Case Material | GMG |
Connection | Blade |
DC Voltage Rating | 450 V |
Mounting | Bolt |
Mounting | Bolted |
Size | 6.47 x 2.5 in |
Size | 164.338 x 63.5 mm |
Size | 6.47 x 2.5;164.338 x 63.5 in;mm |
Special Features | Low I2t minimizes damage to protected components on short circuit Controlled arc voltage reduces stress to circuit components during fuse clearing Choice of mounting types helps in equipment design |
Standard | UL Recognized Component UL File 60314 AC: UL Guide No. JFHR2 (10-800A) DC: UL Guide No.JFHR2 (35-800A) |
Sub Brand | Amp-Trap® |
Type | Round Body High-Speed Fuse-Links AC Protection |
Type Of Indicators | TA Indicator |
Voltage Rating | 500 V |
Voltage Rating | 500 V V |
Package Dimensions (L x W x H) | 6.47 in x 2.5 in x 2.5 in |
Package Dimensions (L x W x H) | 164.338 mm x 63.5 mm x 63.5 mm |
Package Weight (Imperial) | 2.550 lb |
Package Weight (Metric) | 1.157 kg |
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Frequently Asked Questions
What are the voltage and current ratings for A50P fuses?
A50P fuses are rated for 500VAC and 450VDC. Amperage ratings range from 10 to 1200A for AC and 35 to 1000A for DC.
What is the interrupting rating (I.R.) for A50P fuses?
The interrupting rating is 100kA I.R. AC and 79kA I.R. DC.
What applications are A50P fuses designed for?
A50P fuses are designed for DC drives, uninterruptable power supplies, and similar applications requiring better protection and superior reliability.
What are the key features of A50P high speed fuses?
Key features include low I2t for minimized damage, controlled arc voltage, current limiting, and very fast acting performance.
What are the available mounting types for A50P fuses?
Available mounting types include ferrule (Type 1) and blades/bolt-in (Type 4).
Are A50P fuses UL recognized?
Yes, A50P fuses are UL Recognized Components with UL File 60314 and UL Guide No. JFHR2 for both AC and DC applications within specified ranges.
Does the A50P fuse have indicator options?
Yes, indicator options such as a blown-fuse indicator (TI) and trigger actuator (TA) are available.
What is the L/R time constant for A50P fuses?
The L/R time constant for A50P fuses is 10ms.
What is the purpose of the low I2t feature in A50P fuses?
The low I2t feature minimizes damage to protected components during a short circuit.
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.