Mersen H330057 Square Body High-Speed Fuse Protistor® Size NH 000 aR 690VAC IEC 250A L Brackets
Alternate Item Number: BS000UB69V250
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Overview
- Mersen Protistor® NH 000 size fuse-link
- Rated for 690VAC and 250A
- aM (motor-rated) speed/characteristic
- 80 kA AC (IEC) breaking capacity
- Ceramic body with silver-plated copper contacts and L brackets
Specifications
AC Voltage Rating | 690 V |
Amperage Rating | 250 A |
Application | Protection of inverters, motor drives, UPS systems and similar 690V or less equipments. |
Brand Name | Mersen |
Case | Ceramic |
Connection | L Brackets |
Connection Type | L Brackets |
Current Rating | 250 A |
Material | Silver-plated contacts, non-magnetic hardware, solidified sand |
Material | Silver-plated contact surfaces, non-magnetic hardware, solidified sand |
Mounting | Bolted |
Mounting Type | NH Fuse Holder Compatible |
Mounting Type | L Brackets |
Series | Protistor |
Series | Protistor® |
Size | NH 000 |
Size | 3.7 x 1.42 x 0.89 in |
Size | 94 x 36 x 22.5 mm |
Size | Size NH 000 |
Special Features | aR Class according to IEC 60269-4 and VDE 636-23 Very low I²t for improved semiconductor protection Ultra fast acting Superior cycling capability |
Standard | IEC 60269-4 Compliance UL/CSA Recognized Component AC: UL Guide No. E76491 |
Sub Brand | Protistor® |
Type | Square Body High-Speed Fuse-Links AC Protection |
Voltage Rating | 690 V |
Wattage | 45 W |
Package Dimensions (L x W x H) | 3.7 in x 1.42 in x 0.89 in |
Package Dimensions (L x W x H) | 94 mm x 36 mm x 22.5 mm |
Package Weight (Imperial) | 0.311 lb |
Package Weight (Metric) | 0.141 kg |
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Frequently Asked Questions
What is the rated voltage of the H330057?
The H330057 is rated for 690VAC.
What is the breaking capacity of this fuse?
The fuse has a breaking capacity of 200kA.
What is the power dissipation at rated current?
The power dissipation is 50W at the rated current of 250A.
Is the H330057 compatible with trip indicators?
Yes, the H330057 is designed for compatibility with low-voltage trip indicators for remote monitoring.
What is the pre-arcing I²t value?
The pre-arcing I²t value is 8,300 A²s.
What is the clearing I²t value?
The clearing I²t value is 42,500 A²s.
What semiconductor devices does this fuse protect?
The fuse protects diodes, thyristors, and IGBTs in power conversion equipment.
What is the weight of the H330057?
The H330057 weighs 0.24 kg.
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.