Mersen A50QS High Speed Fuse 250A 500VAC/500VDC Blade Terminal Power Protection System

Mersen A50QS High Speed Fuse 250A 500VAC/500VDC Blade Terminal Power Protection System

Professional High-Speed Circuit Protection for Critical Applications

The Mersen A50QS High Speed Fuse delivers reliable 250A circuit protection with dual AC/DC voltage capability up to 500V. Featuring blade terminal connections with tin-plated copper construction and GMG insulating material, this Amp-Trap fuse provides professional-grade protection with 63 kA breaking capacity for demanding electrical applications requiring fast-acting overcurrent protection.

Professional Features & Benefits

• 250A Current Rating: Handles substantial electrical loads while providing precise overcurrent protection for high-capacity circuits and equipment.
• 500VAC/500VDC Dual Voltage: Versatile voltage compatibility supports both AC and DC applications up to 500V for flexible installation options.
• 63 kA Breaking Capacity: High interrupting rating ensures reliable fault current interruption in demanding electrical environments.
• High Speed Characteristic: Fast-acting response protects sensitive equipment and circuits from damage during overcurrent conditions.
• Blade Terminal Design: Secure bolted mounting with tin-plated copper terminals ensures reliable electrical connections and easy installation.
• GMG Insulating Material: Professional-grade body construction provides excellent electrical insulation and mechanical durability.
• RoHS Compliant: Meets environmental standards for safe and responsible electrical component usage.

Technical Specifications

• Ac Max I R Breaking Capacity I1: 63 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 250 A
• Body Insulating Material: GMG
• Connection Terminal Material: Tin-Plated Copper
• Connection Terminal Type: Blade
• Frequency Hz : 50/60 Hz
• Mounting Method: Bolted
• Product Length: 4.34 in
• Product Weight: 0.68 lb
• Rated Voltage Ac Ul: 500 V
• Rated Voltage Dc Ul: 500 V
• Rohs Compliant: Yes
• Speed Characteristic: High Speed

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Industrial Motor Control Centers
• Commercial Power Distribution Systems
• Data Center Electrical Protection
• Manufacturing Equipment Protection
• Critical Infrastructure Facilities
• High-Capacity Electrical Panels
• Professional Electrical Installations

Why Choose Mersen Quality?

Mersen delivers proven reliability in electrical protection with RoHS compliant construction and professional-grade materials. The compact 4.34-inch design and lightweight 0.68 lb construction ensure easy installation while maintaining robust 63 kA breaking capacity and dual voltage compatibility for versatile professional applications.