
Brand: Mersen | Product No: A3T200
Mersen A3T200 Fuse Amp-Trap® 300V 200-Amp Fast-Acting Class T A3T Series
Pairs well with
Top-Rated Store • Read Reviews
Fast Shipping • Ships in 1–2 Business Days
30-Day Returns • See Terms
Secure Checkout • SSL Encrypted
Product details
Description
APPROVALS & STANDARDS
- UL listed to standard 248-15 File E2137
- CSA certified to standard C22.2 no. 248.15
- DC listed to UL standard 248
KEY FEATURES & BENEFITS
Fast-acting A3T Class T fuses combine two highly desirable features - high current-limitation and a small physical size. Their unique dimensions prevent the substitution of other fuses with lower voltage ratings or current-limiting capability. These fuses have glass melamine bodies for superior dimensional stability and catalog numbers stamped into the blades for permanent identification.
- Extremely current-limiting for low peak let-thru current
- Unique dimensions prevent replacement by other fuse classes
- Blade-stamped catalog numbers for permanent identification
- Small physical size for greater design flexibility
APPLICATIONS
- Load centers
- Panelboards
- Switchboards
- Circuit breakers
- Metering centers
DOCUMENTS & RESOURCES
DATASHEET
DRAWINGS
CURVES
COMPLIANCE
SPECIFICATIONS
- Item Number: A3T200
- Item Description (ERP): 300V 200A T FUSE
- Short Description: Fuse Amp-Trap® 300V 200A Fast-Acting Class T A3T Series
- EAN/UPC Code: 782001890230
- Rated voltage AC UL: 300 V
- Rated voltage DC UL: 160 V
- Ampere Rating: 200 A
- ROHS Compliant: Yes
- Fuse Class: Class T
- Speed/Characteristic: Fast-Acting
- Mounting: Bolted
- AC Max I.R./Breaking Capacity: 200 kA
- Connection/Terminal Material: Copper
- Connection/Terminal Type: Blade
- Body/Insulating Material: GMG
- Product Weight: 0.08 lb
- Product Diameter: 1.06 in
- Product Length: 2.44 in
- A3T- Mersen
- JJN - Bussman
- JLLN - Little Fuse
- TJN - Edison
Customer Reviews
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Orders placed before 12:00 PM (PST) ship the same day or within 2 business days, with tracking provided within 72 hours. Learn more in our Shipping Policy.
-
Returns & Exchanges
Non-defective items may be returned within 30 days with a 30% restocking fee. Shipping costs are non-refundable, and return shipping is the customer’s responsibility. See our full Return Policy.
-
Top Rated Service
With a perfect 5-star rating on Google, our customers say it best—great prices, outstanding service, and a company that delivers. See why professionals choose Sonic Electric.
-
Expert Support, Anytime
Our team is ready to assist you via chat, email, or phone with product recommendations and technical guidance.
Star Google Rating
Years of Excellence
Happy Customers
Orders Shipped
Ways to Save on Every Order
Smart, simple savings—powered by Sonic.

3% off your First Order
Subscribe to our emails and enjoy 3% off your first purchase—exclusively for new subscribers.

5% off Malibu Products
Use code PLATINUM at checkout.

Free Ground Shipping
Available on all orders over $500. No code needed.

Lowest Price Guarantee
Found a lower price? We’ll match it.
If you see a lower price for the same in-stock item from another retailer, let us know. Just send us the ad, website link, screenshot, or photo through email or chat.
We’ll verify it and match the total price—including shipping or delivery—if the item is available to ship to your location.