Mersen A70QS High Speed Fuse 700VAC/700VDC 250A Bolted Blade Amp-Trap Protection System

Mersen A70QS High Speed Fuse 700VAC/700VDC 250A Bolted Blade Amp-Trap Protection System

Professional High-Speed Circuit Protection for Critical Applications

The Mersen A70QS high speed fuse delivers reliable circuit protection with 250A ampere rating and dual voltage capability of 700VAC/700VDC. Featuring bolted blade connection terminals with tin-plated brass construction and GMG body insulating material, this Amp-Trap protection system provides professional-grade performance for demanding electrical applications requiring high-speed fault clearing.

Professional Features & Benefits

• 250A Ampere Rating: Handles substantial current loads while providing precise overcurrent protection for high-capacity circuits.
• 700VAC/700VDC Dual Voltage: Versatile voltage compatibility supports both AC and DC applications in industrial and commercial installations.
• 50 kA Breaking Capacity: High interrupting rating ensures reliable fault clearing even under severe short-circuit conditions.
• High Speed Characteristic: Fast-acting protection minimizes equipment damage and system downtime during fault conditions.
• Bolted Blade Connection: Secure mounting method with tin-plated brass terminals ensures reliable electrical connections and easy installation.
• GMG Body Construction: Professional insulating material provides excellent electrical isolation and mechanical durability.
• RoHS Compliant: Meets environmental standards for safe disposal and regulatory compliance.

Technical Specifications

• Ac Max I R Breaking Capacity I1: 50 kA
• Ac Or Dc: AC/DC
• Ampere Rating: 250 A
• Body Insulating Material: GMG
• Connection Terminal Material: Tin-Plated Brass
• Connection Terminal Type: Blade
• Frequency Hz : 50/60 Hz
• Mounting Method: Bolted
• Product Length: 5.09 in
• Product Weight: 0.95 lb
• Rated Voltage Ac Ul: 700 V
• Rated Voltage Dc Ul: 700 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
• Manufacturing Equipment Protection
• Data Center Power Infrastructure
• Process Control Systems
• Heavy Machinery Applications
• Critical Facility Power Protection

Why Choose Mersen Quality?

Mersen high speed fuses deliver proven reliability with RoHS compliant construction and professional-grade materials including GMG body insulation and tin-plated brass terminals. The compact 5.09-inch length and lightweight 0.95 lb design facilitate easy installation while maintaining robust 50 kA breaking capacity for demanding protection requirements.