Mersen A70QS150-4 - High Speed Fuse Amp-Trap® A70QS 700VAC 700VDC 150A Bolted Blade
Mersen

A70QS150-4

Alternate Item Number: A70QS150-4

UPC: 782001948696


Documents & Media
Technical DrawingLine DrawingSpecification Sheet

Contact for Pricing

Overview

The Mersen A70QS150-4 Amp-Trap® high speed fuse is a 700VAC/700VDC, 150A-rated bolted blade fuse designed for superior protection of dynamic solid-state equipment. Developed to meet modern equipment requirements, this fuse delivers lower I²t for improved fault protection, extended cyclic loading life, and reduced watt loss for cooler operation. With a 200kA interrupting rating (AC) and 100kA (DC, L/R ≤10ms), it ensures reliable performance in demanding applications like motor drives, UPS systems, and inverters. The compact design enables equipment downsizing while maintaining robust protection. UL recognized (File E60314), CSA certified, and compliant with IEC 269-4, the A70QS150-4 is engineered for high-efficiency, high-reliability power protection in industrial environments.
  • 700VAC/700VDC voltage rating for versatile AC/DC applications
  • 150A current rating with bolted blade connection for secure mounting
  • 200kA (AC) and 100kA (DC) interrupting rating for high fault current protection
  • Lower I²t for improved equipment protection and reduced thermal stress
  • UL recognized (File E60314) and CSA certified for compliance and reliability

Specifications

AC Voltage Rating
700 V
Amperage Rating
150 A
Application
Protection of 700V or less motor drives, UPS, inverters, etc.
Brand Name
Mersen
Case
GMG
Case Material
GMG
Connection
Blade
DC Voltage Rating
700 V
Mounting
Bolted
Mounting
Bolt
Size
4.38 x 1.22;111.252 x 30.988 in;mm
Size
4.38 x 1.22 in
Size
111.252 x 30.988 mm
Special Features
Very Low I2t for improved protection of equipment Superior cycling ability for long, reliable life on high cyclic loading Low watts loss for cooler operation 700V AC/DC rating gives greater design versatility Ultra compact sizes allow down-sizing of existing equipment
Standard
UL recognized component, AC/DC UL file E60314 AC: guide no. JFHR2 DC: tested to UL standard 198L parameters (35-800A) CSA certified File LR 12636
Sub Brand
Amp-Trap®
Type
Round Body High-Speed Fuse-Links AC Protection
Voltage Rating
700 V
Voltage Rating
700 V V
Package Dimensions (L x W x H)
4.38 in x 1.22 in x 1.22 in
Package Dimensions (L x W x H)
111.252 mm x 30.988 mm x 30.988 mm
Package Weight (Imperial)
0.510 lb
Package Weight (Metric)
0.231 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

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.