Mersen Class J Time-Delay Fuse...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$114.09
$64.09

Mersen Class J Time-Delay Fuse 17.5A 600VAC/400VDC with SmartSpot Indication System

(No reviews yet) Write a Review

Model: AJT17-1/2

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

$114.09
$64.09
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Mersen Class J Time-Delay Fuse 17.5A 600VAC/400VDC with SmartSpot Indication System

Professional Circuit Protection with Visual Indication Technology

The Mersen Class J Time-Delay Fuse delivers reliable circuit protection for AC and DC applications with 17.5A current rating and dual voltage capability of 600VAC/400VDC. Featuring SmartSpot indication system for visual fuse status monitoring, this professional-grade fuse incorporates ferrule terminals with tin-plated copper construction and GMG body insulating material for dependable performance in demanding electrical environments.

Professional Features & Benefits

  • 17.5A Current Rating: Provides precise overcurrent protection for medium-load electrical circuits and equipment.
  • Class J Time-Delay Design: Allows temporary overloads while providing fast fault clearing for enhanced equipment protection.
  • 600VAC/400VDC Dual Voltage: Versatile voltage compatibility for both AC and DC circuit protection applications.
  • 200kA Breaking Capacity: High interrupting rating ensures reliable fault current interruption in demanding electrical systems.
  • SmartSpot Indication System: Visual indication technology provides immediate fuse status verification for faster troubleshooting.
  • Ferrule Terminal Design: Tin-plated copper terminals ensure secure connections and corrosion resistance.
  • RoHS Compliant Construction: Environmentally responsible design meets regulatory compliance requirements.

Technical Specifications

  • Ac Max I R Breaking Capacity I1: 200 kA
  • Ac Or Dc: AC/DC
  • Ampere Rating: 17.5 A
  • 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: 400 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 Panels
  • HVAC Equipment Protection
  • Manufacturing Process Equipment
  • Data Center Power Distribution
  • Renewable Energy Systems
  • Emergency Power Systems

SmartSpot Indication Advantage

The integrated SmartSpot indication system provides immediate visual confirmation of fuse status, enabling faster troubleshooting and reduced downtime. This professional indication technology eliminates guesswork during maintenance and system diagnostics, improving overall electrical system reliability and service efficiency.

Why Choose Mersen Quality?

Mersen delivers proven circuit protection reliability through RoHS compliant construction, precision-engineered GMG insulating materials, and tin-plated copper terminals for long-term performance. The compact 2.25-inch length and lightweight 0.097 lb design ensure versatile installation options while maintaining professional-grade protection standards.

Manufacturer Resources

Product Specs

Ac Max I R Breaking Capacity I1:
200 kA
Ac Or Dc:
AC/DC
Ampere Rating:
17.5 A
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:
400 V
Rohs Compliant:
Yes
Speed Characteristic:
Time Delay

Mersen AJT17-1/2 – Frequently Asked Questions

How fast can I get the Mersen AJT17-1/2 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 AJT17-1/2 come with a warranty?
Absolutely. The Mersen AJT17-1/2 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 AJT17-1/2?
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 AJT17-1/2 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.