Mersen Class RK1 Time-Delay Fu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$685.76
$635.76
Mersen Class RK1 Time-Delay Fuse 400A 600VAC/600VDC with SmartSpot Indication System

Mersen Class RK1 Time-Delay Fuse 400A 600VAC/600VDC with SmartSpot Indication System

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Model: A6D400R

In Stock (leaves warehouse same day if ordered before 3pm ET)

$685.76
$635.76
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Mersen Class RK1 Time-Delay Fuse 400A 600VAC/600VDC with SmartSpot Indication System

Professional-grade electrical protection with advanced indication technology

The Mersen Class RK1 Time-Delay Fuse delivers reliable overcurrent protection for demanding electrical applications. Rated for 400A at 600VAC/600VDC with 200kA breaking capacity, this blade-type fuse features SmartSpot indication technology for quick visual status verification. The PolyTube body construction with tin-plated copper terminals ensures durability and optimal conductivity in professional installations.

Professional Features & Benefits

  • 400A Current Rating: Handles high-amperage loads with reliable overcurrent protection for demanding applications
  • 600VAC/600VDC Dual Voltage: Versatile voltage compatibility for both AC and DC electrical systems
  • 200kA Breaking Capacity: Superior fault current interruption capability for enhanced system safety
  • SmartSpot Indication System: Visual fuse status indication eliminates guesswork during maintenance and troubleshooting
  • Class RK1 Time-Delay: Allows temporary overloads while providing fast protection against short circuits
  • Blade Terminal Design: Secure clip mounting with tin-plated copper terminals for reliable connections
  • PolyTube Construction: Durable insulating material provides long-term performance and safety

Technical Specifications

  • Ac Max I R Breaking Capacity I1: 200 kA
  • Ac Or Dc: AC/DC
  • Ampere Rating: 400 A
  • Body Insulating Material: PolyTube
  • Connection Terminal Material: Tin-Plated Copper
  • Connection Terminal Type: Blade
  • Frequency Hz : 50/60 Hz
  • Fuse Class: Class RK1
  • Indication System: Yes
  • Indication System Type: SmartSpot�
  • Mounting Method: Clip
  • Product Length: 11.63 in
  • Product Weight: 3.22 lb
  • Rated Voltage Ac Ul: 600 V
  • Rated Voltage Dc Ul: 600 V
  • Rohs Compliant: Yes
  • Speed Characteristic: Time Delay

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 Electrical Distribution
  • Power Generation Equipment
  • Manufacturing Facilities
  • Data Centers and Critical Infrastructure
  • Heavy Equipment Protection
  • Electrical Contractor Services

Why Choose Mersen Quality?

Mersen fuses deliver proven reliability with RoHS compliant construction and professional-grade materials. The SmartSpot indication system and robust PolyTube design ensure long-term performance in demanding electrical environments, backed by comprehensive technical specifications for professional confidence.

Manufacturer Resources

Product Specs

Ac Max I R Breaking Capacity I1:
200 kA
Ac Or Dc:
AC/DC
Ampere Rating:
400 A
Body Insulating Material:
PolyTube
Connection Terminal Material:
Tin-Plated Copper
Connection Terminal Type:
Blade
Frequency Hz :
50/60 Hz
Fuse Class:
Class RK1
Indication System:
Yes
Indication System Type:
SmartSpot®
Mounting Method:
Clip
Product Length:
11.63 in
Product Weight:
3.22 lb
Rated Voltage Ac Ul:
600 V
Rated Voltage Dc Ul:
600 V
Rohs Compliant:
Yes
Speed Characteristic:
Time Delay

Mersen A6D400R – Frequently Asked Questions

How fast can I get the Mersen A6D400R delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Mersen A6D400R come with a warranty?
Absolutely. The Mersen A6D400R is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Mersen A6D400R?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Mersen A6D400R from ZenSupply?
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