Mersen Class J Time-Delay Fuse...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$113.13
$63.13
Mersen Class J Time-Delay Fuse 12A 600VAC/500VDC with SmartSpot Indication System

Mersen Class J Time-Delay Fuse 12A 600VAC/500VDC with SmartSpot Indication System

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Model: AJT12

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

$113.13
$63.13
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Mersen Class J Time-Delay Fuse 12A 600VAC/500VDC with SmartSpot Indication System

Professional Circuit Protection with Visual Indication Technology

The Mersen Class J Time-Delay Fuse delivers reliable circuit protection with 12A rating for both 600VAC and 500VDC applications. Featuring SmartSpot indication system for visual fuse status monitoring, this professional-grade fuse provides time-delay characteristics with 200kA breaking capacity and ferrule terminal connections for secure installation.

Professional Features & Benefits

  • 12A Dual Voltage Rating: Supports both 600VAC and 500VDC applications for versatile circuit protection across AC and DC systems.
  • Class J Time-Delay Design: Provides selective coordination and withstands temporary overloads while clearing sustained faults quickly.
  • 200kA Breaking Capacity: Handles high fault currents safely, ensuring reliable protection in demanding electrical environments.
  • SmartSpot Indication System: Visual indication technology allows quick fuse status assessment without removal or testing equipment.
  • Ferrule Terminal Construction: Tin-plated copper ferrule terminals ensure secure connections and excellent conductivity.
  • GMG Insulating Material: Professional-grade body insulation provides reliable performance and safety in industrial applications.
  • RoHS Compliant Design: Meets environmental compliance standards for responsible electrical component selection.

Technical Specifications

  • Ac Max I R Breaking Capacity I1: 200 kA
  • Ac Or Dc: AC/DC
  • Ampere Rating: 12:00 AM
  • Body Insulating Material: GMG
  • Connection Terminal Material: Tin-Plated Copper
  • Connection Terminal Type: Ferrule
  • Frequency Hz : 50/60 Hz
  • Fuse Class: Class J
  • Indication System: Yes
  • Indication System Type: SmartSpot�
  • Mounting Method: Clip
  • Product Length: 2.25 in
  • Product Weight: 0.097 lb
  • Rated Voltage Ac Ul: 600 V
  • Rated Voltage Dc Ul: 500 V
  • Rohs Compliant: Yes
  • Speed Characteristic: Time Delay

Installation & Operation

  1. Mount the fuse in a suitable fuse holder or disconnect 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 Panels
  • Power Distribution Systems
  • Manufacturing Equipment Protection
  • HVAC System Controls
  • Process Control Applications
  • Emergency Power Systems

Why Choose Mersen Quality?

Mersen delivers professional-grade circuit protection with RoHS compliant construction and advanced SmartSpot indication technology. The GMG insulating material and tin-plated copper ferrule terminals ensure reliable performance and durability in demanding electrical applications.

Manufacturer Resources

Product Specs

Ac Max I R Breaking Capacity I1:
200 kA
Ac Or Dc:
AC/DC
Ampere Rating:
12:00 AM
Body Insulating Material:
GMG
Connection Terminal Material:
Tin-Plated Copper
Connection Terminal Type:
Ferrule
Frequency Hz :
50/60 Hz
Fuse Class:
Class J
Indication System:
Yes
Indication System Type:
SmartSpot®
Mounting Method:
Clip
Product Length:
2.25 in
Product Weight:
0.097 lb
Rated Voltage Ac Ul:
600 V
Rated Voltage Dc Ul:
500 V
Rohs Compliant:
Yes
Speed Characteristic:
Time Delay

Mersen AJT12 – Frequently Asked Questions

How fast can I get the Mersen AJT12 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 AJT12 come with a warranty?
Absolutely. The Mersen AJT12 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 AJT12?
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 AJT12 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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